Holmes and Narver, Incorporated - DTIC · 2018-11-09 · r AD-751 058 INTERRELATIONSHIP OF IN-SITU ROCK PROPERTIES, EXCAVATION METHOD, AND MUCK H. F. Haller, et al Holmes and Narver,

r AD-751 058

INTERRELATIONSHIP OF IN-SITU ROCK PROPERTIES, EXCAVATION METHOD, AND MUCK

H. F. Haller, et al

Holmes and Narver, Incorporated

Prepared for:

Advanced Research Projects Agency

September 1972

DISTRIBUTED BY:

Knü National Technical Information Service U. S. DEPARTMENT OF COMMERCE 5285 Port Royal Road. Springfield Va. 22151

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00 ^5 Seml-Annual Technical Report No. 1 © ^ INTERRELATIONSHIP OF IN-SITU ^5 ROCK PROPERTIES, EXCAVATION METHOD, i> AND MUCK CHARACTERISTICS

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Sponsored by

ADVANCED RESEARCH PROJECTS AGENCY ARPA Order 1579, Amendment 3

Program Code No. 2F10

September 1972

Report Period February 16, 1972 - August 31, 1972

The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or im- plied, of the Advanced Research Projects Agency or the U. S. Government.

Reproduced by

NATIONAL TECHNICAL INFORMATIONSERVICE L ^ SföfiT

U S Oeparfmenf of Camnwrca • —»...-.»..., , ,,. Spfitiflfield VA 22131 . T . . Ajproved lor public rc-casej

HOLMES & IMARVER.INC. Distribution 'IrJiîtcvd

A Resource Sciences company ( )

Advanced Technology I Engineering / Construction I Management I Maintenance & Operations

400 EAST ORANGETHORPE AVENUE • ANAHEIM, CALIFORNIA* aggOl

^^ O/^ /%& s?^ 7 £7 $ Li4i..tî^jy:;t«i;î^Ji«uaii*^»»ir,i*^-::^^^

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1. OIIICINAliUU ACH /I1» (C'vrroMI« tuilmi) Ua. MC l-OHT SLCUltll V CLASMI IC A 1ION

HOLMES & NARVER, INC. 400 East Orangethorpe Avenue Airahgüm. California 92aQI >. HI:I*OHT »ni-K

»6. cnoui* N/A

Study of Interrelationship of In-Situ Rock Properties, Excavation Method, and Muck Characteristics

4. t)i:sc niPTi vt KOI LS (Typt at lepi il «nrf Intlutlrc tlilf)

Annual Technical Report No. 1 February 16, 1972 -- August 30. 1972 5. .U1 HONiSt (7ifW rwioir, mtJtil» tiiulal, Imal nomc) ' '

H. F. Kaller, H. C. Pattison, Dr. O. C. Baldonado

0. III.PORT OA It

September, 1972 e». C ONI .ACT OR CHAHT NO.

HO 220023 b. fllCJCCT NO.

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10. DIlTnlrutTlON STAtl.MKUt

Distribution of this document is unlimited.

?n. TOTAL MO. OF I'ACCS l<J. HO. or RCF«

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12. IPOWbOKrNC MIUITARV ACTIVITV

Advanced Research Projects Agency Washington, D. C. 20301

5» Reports results of research lo correlate the properties of in-situ rocks with materials handling properties ot muck and parameters of excavation systems. Goals arc to develop methods for predicting muck characteristics from collected data and for selection of transport equipment through the Muck Designation Number concept. Muck sample, rock, and operating data collection, testing methods, data processing, development of MDN's, preUminary regression analyses, and equipment selection are dercribcd.

Data available 8/31/72 from 50 samples at 23 sites (16 samples from 8 sites in 1972) is presented in raw data printout ard narrative-graphic summary form, sowing lithology, rock properties, operating data, and muck properties. Tentative MDN's are described by composite size and distribution curves, with preliminary regression analyses of 27 data sets and prediction accuracies of over 90 percent. Applicacions to equipment selection/design include input for design formulae used in mathematical models of belt and hydraulic conveying systems.

DOD implications include more rational transport equipment selection and design, with resultant speed and cost benefits. Recommended additional research includes sampling opei ttions and formations not previously available, resamphng to improve the confidence level of the data, dynamic testing for coefficients of rock strength in addition to current tests, and predictor refinements.

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JfiU DP/^J473 Unclassified

borunly Cias-.idciluM)

Unclassified SfiMiicv C l.i'.-.iiir.ilK

«CV WOODS

Tunneling

Rock and Muck Property Interrelationships

Muck Designation Nymber

Muck Characteristics

Transport Equipment Selection/Design

Materials Handling in Tunnels

Muck Transportation

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Unclassified Scc-uiily Cl.-.r.Md, ..tun

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This research was supported by the Advanced Research Projects Agency of th^ Department of Defense and was monitored by the U. S. Bureau of Mines unc.r Contract No HO220023, ARPA Order Number 1579, Amendment No. 3, Program Code 2F10.

Effective Date: February 16. 1972

Expiration Date: April 16, 1972

Estimated Amount of Contract: $81,4-16

Short Title: Muck Designation Number (MDN) Study

Project Scientist: Dr. 0. C. Baldonado

Telephone: (714) 870-5700

Principal Investigator: H. F. Haller

Telephone: (714) 870-5700

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HIM 8128.1

Semi-Annual Technical Report No. 1

INTERRELATIONSHIP OF IN-SITU ROCK PROPERTIES, EXCAVATION METHOD

AND MUCK CHARACTERISTICS

by H. F. Holler

a, C. Pattison Dr. 0. C. Baldonado

Sponsored by

ADVANCED RESEARCH PROJECTS AGENCY ARPA Order 1579, Amendment 3

Program Code No. 2F10

September 1972

Report Period February 16, 1972 - August 31, 1972

■ ' , ' se: :

HOLMES & NARVEHINC.

A Resource Sciences company

Aövanceä Ttchnolw I Engineering / Construction I Management I Maintenance & Operations

400 EAST ORANGETHORPE AVENUE ^ ANAHEIM. CALIFORNIA 92801

.._

FOREWORD

This report presents the results of research performed during 1971 and 1972 into the interrelationships of in-situ rock properties »nd the characteristics of muck produced by various excavation methods. The authors wish to express their appreciation and that of Holmes & Narver, Inc. , for the assistanc-3 provided by the many U. S. Bureau of M nes and Holmes & Narver staff members, as well as those indi- viduals and organizations listed below who also participated in the program,

AIME, Alexander R. Scott Atlas-Copco Corporation, Pieter Berendsen Bunker Hill Company, Frank Woodruff, John Parker,

John Songstad, Keith Droste, Joe Gordon, Terry Butler, Norman Radford

Callahan Mining Corporation, George Beattie, James Thompson

Calweld Division, Smith International, Inc. , Richard Wallers, N. M. Fillip, E. W. Brickie, Tom Bryant^ Reynold Carlson

Cleveland Cliffs Iron Company, G. A. Dawe, Eric Beinlich, A. J. Andelin, J. P. Marietti, Jim Maina, Matt Korpi, E. A. Koski, John Reddy, Hugo Korpinen

City of Chicago, Department of Public Works, C. J. Kieffer, F. C. Neil, T. Maynard

Climax Molybdenum Company, American Metal Climax, D. B. Achttien, J. W. Powell, R. L. Elder

Dresser Industries, Inc., R. R. Durk, N. Nickerson Fenix and Scisson, Inc. , Daniel Geary Fluor-Utah Engineers-Constructors, R. K. Duke,

R. W. Franzen, J. D. Davenport, Bob Spaulding Granite Construction Company, Lou Avery, Pat Loughry Harza Engineering Company, Richard Acker, Frank Wheby S. A. Healy Company, Don Zeier, Robert Ames, John Wagner,

Carl Prescott, Ben Metros, Domenic DiSandro, Don Parus Hecla Mining Company, Coeur D'Alene District, Gordon M.

Miner, George Wilhelm, Merle Hutchinson, Jon T. Lang staff, William Anderson, Arthur Brown

Hecla Mining Company, Casa Grande District, J. H. Hunter, R. S. Hendricks, James Ouinlan, Pedro Campino, D. W. Trepp, Jack Hight, Ken Jensen, S. L. Milne, Andrew Kannegaard, D. J. Ryzak

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Home stake Mining Company, D. W. Delicate, Olin Hart, Gordon Nelson, Al Gilles, Bert Moorhead, Ernest Boint

Illinois University, Don U. Deere, Peter Tarkoy Jarva, Inc., Ed Norman Peter Kiewit Sons' Company, Norman Tennock, R. S. Allmon,

P. E. Freeland Kennametal, Inc., John J. Riley Kerr-McGee Corporation, Rhoderick Tregembo,

W. R. Dolezal, J. W. Burgess, Carl Johnson Magma Copper Company, San Manuel, John Wise, Les Acton,

John Goss, Don Gumming, Lloyd Thomas, Stewart Thomas Magma Copper Company, Superior, Keith Staley, J. W.

Murray, Jack Flanigan, Joe Vendiola, John Bodycomb, Doyle Dugan, Russ Webster, Dick Schall

Lawrence Manufacturing Company, Inge r soil-Rand Company, William Hamilton, Robert Gordon, Howard Handewith, Richard Pyle, Peter Gadzuk

Joseph W. LaComb, DOD, DNA W. J. Lazynski Company, Thomas Peterson, J. Olouglin,

H. Zewtzke Joy Manufacturing Company (Canada), Thomas E. Howard Lockheed ShipbuildiT)^ and Construction Company.

Loren Savage, Berle Cook A. A. Mathews, Inc., A. A. Mathews Mathews and Chase, Martin Cooper, Dean S. Lodemell G. W. Murphy Industries, Inc., A. B. Spiritelli Metropolitan Water District of Southern California,

R. J. Proctor, Garland Gray, James Brown Perini Construction Company, Roy Anderson, Bruno Dietel Reynold Electrical and Engineering Company, W. G. Flangas,

R. S. Burton, Barge Massey The Robbins Company, R. J. Robbins, N. J. Dahmen,

P. T. Plypick, Pat Taylor S&M Constructors, Ron Marra SME, Jack C. Fox, John Beall, L. Donaldson Tunnel Constructors, Inc. , Fred Breu Teetor-Dobbins, Alexander Valle U. S. Atomic Energy Commission, T. W. Young U. S. Department of Interior, Bureau of Reclamation, Harold

Arthur, H. E. Mclnnes, Gordon Hill, A. S. D'Alessandro Bert Levine, Dewey Geary, Shannon Fowler, Lawrence Rhodes, Paul Randolph, George Terry

Viro Dyne Corporation, L. A. Garfield Western Nuclear, Inc. , D. R. Ketron, T. A. Miche White Pine Copper Company, Walter Finlay, J. L. Patrick,

C. C. Hanninen, T. J. Rohrbacher, William Lane, William Dorvinen, J. W. Sipola

IV

TABLE OF CONTENTS

Section

FOREWORD

Pa£e_

111

INTRODUCTION AND SUMMARY 1

Purpose i Scope i Conclusions 1 Reference to Details 2 Summary 2

1 TECHNICAL PROBLEMS H

2 GENERAL METHODOLOGY 2-1

3 TECHNICAL RESULTS 3.!

3.1 Site Selection 3_1 3.2 Sample and Data Collection 3_2 3.3 Physical Testing 3.3 3.4 Data Processing 3.3 3.5 Development of MDN's 3.6 3.6 Transport System Selection 3.10

4 DOD IMPLICATIONS 4.!

5 IMPLICATIONS FOR FURTHER RESEARCH 5-1

5. 1 Sample and Data Collection 5_1 5.2 Physical Testing 5_2 5. 3 Innovative Techniques 5_2

6 SPECIAL COMMENTS 6-1

Glossary £)_2 DOD Form 1473 6-3

TABLE OF CONTENTS (continued]

Appendixes Pag*

A-l

B-l

C-l

D-l

A TUNNEL PROJECTS

B RAW DATA SHEETS

C SYSTEM DATA SHEETS

D ALGORITHM DEVELOPMENT

E TRANSPORT SYSTEM SELECTION PARAMETERS E-l

■

vi

LIST OF ILLUSTRATIONS

Fi6ure Page

3-1 Computer Output - TBM and RBM Data Analysis 3-2 Computer Output- Conventional Data Analysis 3-3 Rock, Tunnel, Operating, and Muck Data,

MDN T-l and T-2, Conventional 3-4 Rock, Tunnel, Operating, and Muck Data,

MDN T-3, Conventional 3-5 Rock, Tunnel, Operating, and Muck Data,

MDN T-7, Conventional 3-6 Rock, Tunnel, Operating, and Muck Data,

MDN T-l and T-2, Machine 3-7 Rock, Tunnel, Operating, and Muck Data,

MDN T-3, Machine 3-8 Rock, Tunnel, Operating, and Muck Data,

MDN T-4, Machine 3 9 B.ock, Tunnel, Operating, and Muck Data,

MDN T-5, Machine and Shield 3-10 Rock, Tunnel, Operating, and Muck Data,

MDN T-f, Machine 3-11 Rock, Tunnel, Operating, and Muck Data,

MDN T-7, Machine and Shield

3 3 3.

-9 ■ 11 -12

3 -13

3- • 14

3- • 15

3- ■16

3- • 17

3- 18

3- 19

3- 20

VI1

ll»lll,l —— ^•-"'f ■ '"—. ■ —--—■ — ,,-•

INTRODUCTION AND SUMMARY

PURPOSE

The purpose of the program is to develop a method for predicting the materials handling properties of muck from the engineering properties of rock and the parameters of excavation systems, and a means of selecting the most suitable transportation equipment for the muck through the concept of Muck Designation Numbers (MDN's).

MDN's range in whole numbers from 1 through 7. MDN 1 describes muck with a large maximum piece size, more than 5 percent plus 6-inch material, and a predominant distribution in the plus 1/2-inch size range. The maximum size of MDN 7 is relatively small, the predominant distribution is minus 1/2 inch, and more than 20 percent is minus 200 mesh in size. Intermediate numbers range in size and size distribution between end points. The concept recognizes that muck characteristics vary with excavation methods as well as rock properties.

SCOPE

This report describes results of research performed in the first half of a contract initiated on February 16, 1972, for a 14-month period. The work is a continuation of a previous 12-month contract of which the results also are covered to summarize the total accomplished and the current status of the program.

CONCLUSIONS

Program activities have included sample and data collection, physical testing, data storage and processing, development of tentative MDN's, preliminary correlation with rock properties, and establishing the parameters of muck handling systems.

Regression analysis of seventeen sets of rock property. Raise Boring Machine (RBM), and Tunnel Boring Machine (TBM) data produced a predictor equation with an apparent accuracy over 90 percent. Analysis of 10 sets of rock data with conventional excavation parameters produced an accuracy of nearly 100 percent. Inclusion of additional data is expected to improve prediction reliability.

Predictor accuracy probably will not be maintained at preliminary levels, and appropriate parameters iemain to be developed for sMcid and drag cutter TBM's. However, it can be concluded that MDN's are predictable within the limits of reasonable accuracy for th« majority of rocks and methods sampled under the program.

Preliminary analysis also shows that MDN data can be used as input for design formulae and performance-cost models of belt and hydraulic conveying systems.

.

REFERENCE TO DETAILS

Details of the topics summarized below are arranged under the same headings in the report.

. SUMMARY

1. Technical Problems ■ ■ ,

Inadequate subsurface information on new tunnels limits the effectiveness of construction planning and forces contractors to base bids on methods and equipment which may not suit the job. Loss of time, lives, and money has often resulted.

Estimates of the volume of tunnel construction made several years ago focused attention on the importance of a more logical approach to methods and equipment selection. The advisability of increasing excavation speed while reducing costs has been reemphasized by recent studies which show that prior tunneling forecasts were conservative.

■

Muck transportation obviously is a major factor in tunnel cost; improvements would reduce tunnel costs significantly. Knowledge of the basic properties of a material is fundamental to improvement of handling techniques. Prior to the inception of the MDN program, however, practically no information had been collected on muck ' characteristics; and correlations between muck properties, the properties of the in situ rock, and the components of rapid excavation systems had not been established. These data are essential as a basis for optimum selection from the transportation systems in current use and for development of the high speed systems required in the future.

2. General Methodology

The research plan is to collect muck samples, lithologic and operating data, and rock specimens, where necessary, from operating tunnels; determine muck characteristics and rock properties by physical testing; correlate and analyze rock and muck properties and quantify relationships through MDN's; and correlate rock and muck characteristics, MDN's, and the components of rapid excavation systems with muck transport system capabilities.

Lithologic data consists of descriptions of rocks, their classification by probable origin and subsequent alteration, and Rock Quality Designations (RQD's) wh'-ch indicate the frequency of discontinuities. Operating data includes descriptions of the equipment and methods uf.ed in the total excavation system. Rock test data includes unconfined uniaxial compressive strength, dry unit weight, hardness, and stress- strain relationships known as Young's modulus and Poisôn's ratio. Commercial muck test data includes size distribution, shape, moisture content, dry loose unit weight, and abrasiveness. Additional muck tests by the Pittsburgh Mining and Safety Research Center (PMSRC) determine Atterberg Limits, potential volume change, specific gravity, angles of repose, slide, and internal friction, apparent cohesion, and bulk density.

3. Technical Results

3. 1 Site Selection

A list of current and scheduled tunnels, originally compiled to assure that program objectives could be met, has been revised periodically. The current list is included in Appendix A. Sites for data and sample collection were selected with emphasis on mechanical operations in hard rock. In the first year, some soft rock and conventional tunaels were included as examples of unusual advance rates and systems. In the current pr jgram, conventional operations in hard rock at deep mines have been sampled at client request.

3.2 Sample and Data Collection

In the current program, operating data and sixteen muck samples were collected from eight sites. Totals for the program are 50 samples from 23 sites. Resampling at four sites confirmed the reliability of initial results. All other samples reflect differing lithologies, operating methods, or equipment.

coined ÄÄi/rt ^^:in^r^r?ave been

some of which represent formations sampi^Tn mi lel^'T?!.' from nine sites in 1972. P 9 *' Were collected

four clag.ified as Verv HUkaZ. .!" ^ ype8 ""P1^ 'iclude

are expectad to inoiudo thraa «/h S.renZ '^7* ^ ^1"^ Low Strength claesificationa. Ä basWo tf '' 1 T' and 'W0

in the body of the report. classifications follows

3«3 Physical Testing

Testing MaÄ'^/TtteTr^r "" ^T"^ SoCie^ ^ for nse by ..»»reu/^Lt ^^ ^VJoTo?^.

18 comxnaro^tCatorfefs^T0' *"*'TV n"°ti*t*d »ith

shipment of f,ac«».Tie „ H» "", M'1"""' £0r leS"",g and

five comêrûlorltorte?-O ""f .teS,S haVe been "W™ with rock tests « th! 30 !S !" ^ Iabora'°1-y '• "°w performing all

31 «eat suUes^hat heVntom;ut:deP|tCrrn8tWMCh;,aVe been COll"ted' initiated in 1972 „as obtaTnTI on 1 / rofh. .".^ T ''^ ^""^ ■971. Resets from Schmidt harielrtes^ on roc"k ^ ^ in 1972. have not been consistent ML?«.? / C8r"' also '""«»«ad oontamolated IniH.l .1. . Mo<i'ft'a"on of test methods is quarto fte c^rllt""™"' '"*■ are ^^ !°r ** **r*

3.4 Data Processing

rock. ^^^rratl:!^ P^^ " lith0l0giC

punch cards and printouts of theso data "f nctuded * A ^ T** ^ form was developed for narraHx« =.„!, ire

L ncluded ** Appendix B. A

These ..System .fata ^Z'T^JZ'^ZTt' *" "^

3.5 Development of MDN's

Size distribution curves from initial sampling varied distinctly, generally as had been expected; and an algorithm to correlate MDN s, m situ rock properties, and excavation methods was developed as described in Appendix D. '

Continued sample testing produced some curves which fit well with the initial curves, and others which required establishing additional categories. Using the data available at the end of the first year, curves of similar form were plotted together, and preliminary MDN's were assigned. The resulting composite curves are shown in

-gures 3-3 through 3-11.

Initial regression analyses produced the predictor equations described in the "Conclusions" section, indicating accuracies over 90 percent for RBM/TBM and for conventional operations. Computer input data are shown in Section 3, and the output tabulations are shown as Figures 3-1 and 3-2.

Additi0nal iterations wil1 be performed when the data collected m 1972 is in final form. Values for Young's modulus, Poisson's ratio, and Schmidt hardness resulting fro;T_ current tests will be substituted for the less important parameters and inferred value? used in current analyses. Current efforts to obtain data on net torque for TBM'B and RBM's, and to develop operating parameters for drag cutter TBM and shield operations will be continued.

3'6 Transport System Selection

w™ , A liSt 0f e<luiPment capabilities, system constraints, and MDN applications, prepared for the Annual Technical Report for the first year, has been included as Appendix E.

Belt and hydraulic conveying system design parameters and available parametric mathematical models of these systems were studied under the current program. Collected muck property data is appropriate as input to design formulae and the models. Somo clarification of design parameters and refinement of the models is planned for the secona half of the current program. An example of MDN data use in design of an hydraulic system is in progress; a comparison between an existing installation and a belt conveyor design based on MDN data and examples of MDN applications to other systems are planned

*. POD Implications

Data accumulated under the program are nonexistent elsewhere in rapid excavation technology and can provide a more rational basis for selection of materials handling systems for excavation methods in current use. These data will also be invaluable to the design of the equipment required to match the improved advance rates resulting from current excavation research. As alternatives to design of systems to handle a specific type of muck, MDN data can be used to select process equipment to change muck characteristics to suit a system, or to select separation and supplementary haulage equipment for the oversize fraction of muck which cannot be handled by a continuous system which is otherwise well adapted to a site.

The MDN program provides basic data required for a rational engineering approach to problem solutions in a most important subsystem of the rapid excavation process. It will show examples of data application and should be used to indicate the areas in which research and development of modifications or new methods would be most productive.

5. Implications for Further Research

5« ! Sample and Data Collection

Recommendations for further research are based in part on the following projection of formations and excavation systems for which data is expected to be available at the end of the current contract.

Excavation Method

Rock Strength "1 Very High High

Med- ium Low

Very Low Total

Conventional Shield Machine

Drag Cutters Disc Cutters Roller Cutters Combination

| Cutters

3 0

0 2 0

0

9 0

1 7 4

3

5 0

1 5 1

1

1 0

2 1 0

1

1 2

1 0 0

2

19 2

5 15

5

7

To be consistent with good sampling and testing practice, data reliability should be confirmed by repetition of all single samples. Eleven sites previously sampled once are expected to be available in 1973. Statistically, the number of samples used in development of a predictor equation should be greater than the number of variables in the analysis. To improve prediction reliability additional samples, detailed in the body of the report, should be collected from all types of TBM's in selected formations.

To demonstrate variations in muck characteristics with rock properties, conventional and selected TBM samples should be collected from the Medivm and Low Strength rocks.

To provide data on the full range of rock types, stratified volcanic and fine grained igneous rocks should be sampled. Sampling muck from tests of unusual rock breaking techniques which may become the standards of the future should be initiated to provide data on the muck for which transport systems will be required.

5. 2 Physical Testing

Continued development of testing methods to provide consistent results from Schmidt hardness tests is recommended because of the speed, low cost, and nondestructive nature of the only test for a dynamic rock property in current use.

Investigation of the Protodyakonov test for resistance to fragmentation is recommended to determine the effect of a second dynamic property on prediction accuracy.

5.3 General

Potential imProvements in systems components which require the application of techniques which are technically sound but not yet developed to a point of practical application may appear in the collection and analysis of program data. These should be identified as attractive areas for research and developmen1:.

6. Special Comments

A Schmidt impact rock test hammer and two self rescuers were purchased during the reporting period for use in the program. No invention has been made in the course of the work performed under this contract.

1. TECHNICAL PROBLEMS

The effectiveness of planning for new tunnels has been limited by the quantity and quality of information concerning subsurface conditions which has been available. Owners and owner-agencies often have been reluctant to collect data on the properties of materials to be excavated, or to publish information which has been collected. Interested contractors are forced to base proposals on inadequate information about conditions to be encountered, and to base cost estimatas on methods and equipment which may not be well suited for conditions as they exist. Generally, significant allowances are made both for contingencies which can be anticipated and for those which cannot be foreseen.

The importance of a more logical approach to selection of methods and equipment for tunneling became apparent when the volume of this work probable in the future was estimated several years ago; it has been reemphasized by more recent studies which indicate that prior estimates were conservative. Wider application of tunnel boring machines, which require rock property data for design, and of an engineering approach to ground support have influenced owner and agency policies to the extent that collection and dissemination of more and better quality exploratory information appears to be a current trend.

Progress has been made and is continuing in re&earch to determine relationships between rock properties, drillability, excavation, and support requirements. Prior to inception of the program described in this report, practically no information had been collected on the characteristics Of the muck produced by various excavation methods, and correlations between the engineering properties of rock, muck characteristics, and the components of excavation systems had not been established.

In the absence of muck characteristic data, an adequate basis for selection of optimum transportation methods and equipment does not exist, and tunneling progress and cc 't have been affected adversely. Muck data are also basic requirements for engineering the improvements to existing transport systems and the develop nent of the new systems which will be necessary to keep pace with the higher rates of excavation predicted for the future.

1-1

2. GENERAL METHODOLOGY

Objectives of the program are to develop a method for predicting materials handling properties of muck from the in-situ properties of rock and a means of selecting the most suitable transportation equipment for muck produced by various excavation systems. The major emphasis is on mechanical excavation of hard srock. However, some soft rock and conventional operations are included as examples of unusual advance rates, equipment, and operating method;.

The program plan is to collect muck samples and operating data from tunnels and mining projects in rock of known properties; collect specimens from sites where the in-situ properties are unknown; determine muck characteristics and rock properties by physical testing; correlate and analyze rock and muck properties and quantify relationships through the coucept of Muck Designation Numbers (MDN's); and to establish correlations between rock and muck characteristics, MDN's, the components of rapid excavation systems, and selection of muck transport equipment.

2-1

3. TECHNICAL RESULTS

3. 1 SITE SELECTION

A list of operating and scheduled tunnels, prepared originally to assure that program objectives could be met, has been revised periodically. The latest revision is included as Appendix A. Six of the tunnels listed are expected to be completed in 1972. Letter inquiries inviting program participation by off-continent tunnel operators met with no response. These tunnels have been deleted from the list.

Tunnel contractors, although under no obligation to participate in the program, have been most cooperative. Operating mine cooperation has been equally good, although access usually requires more operator support, and the impact of economic conditions has reduced emphasis on research. Scheduling sampling and data collection on a strictly noninterference bisis and full observance of safety requirements have been important in gaining operator acceptance.

Early planning assumed that one basis for site selection would be the availability of rock property data at specific sites. Experience proved that collection of these data is necessary from the majority of locations, and the program was modified to reflect this requirement.

In the first half of 1971, it became apparent that sampling tunnel operations in a wide range of rock strengths and excavation techniques would be necessary to demonstrate that muck characteristics varv distinctively with rock characteristics and operating methods. The program plan was modified to provide for data collection in the variety possible within the limits of time and availability, and additional funds were provided by contract modification to enlarge the scope of field sampling.

In the first year of the program, sites were selected to provide one-third of the samples from conventional excavation. In the current year seven conventional and nine mechanical operations have been sampled, and onu more of each is expected in the second half of the /ear.

In response to a client request to obtain samples and data from conventional operations in strong rocks at maximum depth during 1972, sites were selected for field work in two quartzites at 7, 094 feet and

3-1

6, 110 feet, a phyllite at 6, 200 feet, a quartz monzonite at 2, 075 feet, a conglomerate at 3, 960 feet, and a graywacke at 3,480 feet below the surface. At some sites, planned sampling of stronger rocks and/or at greater depths could not be accomplished because of site conditions.

3-2 SAMPLE AND DATA COLLECTION

Muck samples and operating data have bi-n collected from 23 mine and tunnel sites. Of 50 samples, 11 were collected from sites visited only once. Resampling was done in similar formations at four sites to confirm the reliability of initial results. All other samples reflect differing lithologies, operating methods, or equipment.

The scope of ccilecting in-situ rock data has been greater than was anticipated originally, because formations encountered in most locations could not be correlated with the existing rock data. ROCK specimens or cores have been collected for engineering property tests from 39 formations at 21 sites.

Two shield operations, two RBM, 18 conventional, and 28 TBM operations have been sampled to date. Rock types classified include four Very High, twenty High Strength, four Medium, five Low, and six Very Low Strength. Rocks which remain to be tested are expected to include three High Strength, six Medium, and two Low Strength classifications,

Nine of the sampled sites are no longer available for field work Of the remaining sites, one is expected to complete excavation in October of 1972.

Early in the 1972 program a request was received from the Project Officer to increase the volume of samples provided for testing at the Pittsburgh Mimng and Safety Research Center (PMSRC) fr.m 2 to 4 cubic feet. Sampling and laboratory procedures were modified to comply with this request.

Muck samples collected are representative cf the material as it reaches the transportation system. Muck produced mechanically normally is sampled as it leaves the conveyor which is integral with the machine Conventional muck is sampled by channeling. Pieces which are too larse for practical delivery to a laboratory are measured, and calculated weights in th-. various size ranges are added to adjust the screen tept results. Rock specimens, or rock cores when available, are collected in size's large enough to permit the preparation of six test specimens approximately 2-.i /8 inches in diameter by 4-1/4 inches long.

3-2

Operating data in the first yt»ar of the program was collected in sufficient detail to permit inclusion of all of the components of the tunneling system in the analysis and selection of optimum transportation subsystems for specific MDN's and tunnel configurations. Experience in data analysis has indicated a need for more precise thrust, torque, and cutter data than was expected to be required for mechanical tunneling. In the current year, these data are being collected for most of the TBM operations sampled to date.

3. 3 PHYSICAL TESTING ,

Published test methods were reviewed in detail to ensure that tests performed by commercial laboratories would yield consistent results. The following American Society for Testing and Materials (ASTM) standard methods were selected as specifications in the first year of the program.

C566-67: Total Moisture Content by Drying

C1S6-67: Sieve or Screen Analysis of Fine and Coarse Aggregates

Cl 17-69: Materials Finer than No. 200 Sieve in Mineral Aggregates by Washing

C29-69: Unit Weight of Aggregate, Loose Weight Determination

Cl 70-50: Compressive Strength of Natural Building Stone

Specifications for the last test procedure were modified to provide for greater accuracy in specimen preparation so that results will be -om parabie to those reported by other rock property research programs.

Review of the data collected in the first year led to a decision to test rock specimens for deformation moduli in the current program to provide additional data for regression analyses. Following a review of test methods, ASTM Standard Cl 70-50 was replaced by the following procedure, and additional standards were developed to conform with the practices followed by U. S. Bureau of Mines research centers in measuring strains. «""»H

D2938-71: Unconfined Compressive Strength of Rock Core Specimens

3-3

Results of hardness tests by the Shore scleroscope, a laboratory instrument which tests hardness by rebound, are available for only three of the rock formations sampled. Additional tests by this method were found to be beyond the scope of this study. Hardness testing by the Schmidt hammer, a portable device which also tests rebound hardness, is nondestructive and relatively inexpensive and was specified for inclusion in the 1972 program. A hammer was purchased for use in testing tunnel wal.s and rock specimens.

Standard methods of testing abrasiveness were reviewed to determine the feasibility of collecting these âta from tests on muck samples. The standard ASTM tests were foum5 co measure the resistance of the sample to abrasion, rather than cne abrasive effect on other materials. The latter is the property of greater interest in materials handling, and a machine designed for such testing was located by the Project Officer at the PMSRC and will be available to the program in the second half of the current contract period.

Modification of the standard test procedure was found necessary in testing muck from some low strength rocks. Screen testing the samples in the natural state was performed prior to the standard tests to avoid dis- tortion of the curves caused by the disintegration of material during the wash screening which normally precedes dry sieve analysis. Natural screen test results are identified and shown as dotted lines on the size distrib*. on curves.

Contracts to perform muck tests have been negotiated with 18 commercial testing laboratories. Collected samples were delivered for testing and shipment of minus 2-inch fractions to the U. S. Bureau of Mines, PMSRC, for additional tests to be performed at this facility. At the end of the reporting period, tests by commercial laboratories had been reported on 46 sets and by the PMSRC on 41 sets of muck samples. One set of samples tested commercially was lest in transit to the PMSRC.

Contracts to perform tests on rock specimens have been negotiated with five commercial laboratories. One laboratory is now performing all rock tests, which assures uniformity of results, but also delays some tests when the volume of work is high. Two sets of specimens destroyed in preparation for testing in 1971 were replaced in 1972. A total of 39 sets of rock specimens have been collected, on which 31 reports have been received, and 8 sets remain to be tested. Stress-strain data was obtained on 11 rocks, including 4 collected in the 1971 program. Specimens yet to be tested appear to be of the necessary quality for stress-strain testing.

3-4

Initial Schmidt hardness tests by project personnel on walls of tunnels gave results which correlated well with those reported by other researchers on similar rocks. Initial tests on 11 core specimens showed no obv us correlation with field tests or with values obt xined from the hardness-compressive strength relationships established by previous investigations. Further trials on hand lapped core specimens and a modified cradle indicated that lapping raised test values somewhat nearer those observed in tunnel wall tests. Some variation in values appears to be associated with core straightness. The cost ana results of testing polished flat surfaces is being investigated.

3. 4 DATA PROCESSING ;n:;>i 'U'm^-pr

A format was developed for computer printout of lithologic rock muck, and tunnel data. Test results received to date have been 'stored'on punch cards. Printouts of these raw data are included as Appendix B Blank spaces on the printout indicate that data is not available on the date of the report.

Narrative and graphic summaries were prepared to combine these data with descriptions of the excavation systems from which rock and muck samples were taken, and are included as Appendix C. Rock strength classifications are based on uniaxial compressive strength, and conform with those proposed by D. U. Deere, et al., in the "Engineering Classifica- tion and Index Properties for Intact Rock, " University of Illinois, 1966. These classifications are:

Very High Strength - Greater than 32,000 psi High Strength . 16, 000 - 32, 000 psi Medium Strength - 8, 000 - 16, 000 psi Low Strength _ 4, 000 - 8, 000 psi Very Low Strength - Less thau 4, 000 psi

Grain size classifications of igneous rocks, from A. Johannsen's A Descriptive Petrology of Igneous Rocks, - 1931, are used as follows:

Very Coarse . Above 3 cm Coarse - 1 to 3 cm Medium . 1 to 10 mm Fine - Below 1 mm

Fromj. F. Kemp's -A Handbook of Rocks, - 1950, sedimentary rocks of fragmental grains above 2 mm, are classified as conglomerates while those below 2 mm in size are classified as sandstones or siltstones'

3-5

Symbols used to describe the shape of particles in the sample fractions between screen sizes are the following:

A - Angular S - Subangular P " Pla-ty R - Rounded E - Elongated C - Cubic I - Irregular Sp - Spheroid

The curves show the percentage of the total sample weight passing one screen size and retained on the next. Screen sizes below 1/2 inch were selected to provide openings which become progressively smaller by approximately 50 percent as shown below:

Screen Size #4 #8 #16 #30 #50 #100 #200

Nominal Square Openings. Inches 0* 187 0-094 0'047 0-023 0-012 0.006 Ü. 003

The abbreviation NA is used to indicate that an item of data is not available.

3. 5 DEVELOPMENT OF MDN'S

In accordance with the program plan, which provided for placing major emphasis on data collection during the first year, analysis of data and development of MDN's has been preliminary. As data first became available, test results were reviewed to confirm the validity of the con- ceptual classification criteria. Based on a plan of classification by materials handling characteristics, the proposed designation system employed seven numbered categories in which to group excavation products by size and size distribution. Numbers were assigned in a progression from No. 1 for muck with a relatively large maximum piece size and a predominant distribution in the 1 inch to 200 mesh range to No. 7, in which the maximum size is relatively small and the predominant distribution is in the minus 50 mesh sizes. The concept also recognized that muck characteristics would vary with the excavation method and contemplated modifying the MDN's to distinguish between excavation techniques.

■

Initial field work was scheduled at sites where rock strengths varied over a wide range and which would provide examples of shield, machine and conventional operations. The size distribution curves of the muck from these sites (Identification Numbers H-l, 5-1, CL-1, NAST-l, and SF-1, Appendix C), varied distinctly, in general accordance with the

3-6

criteria, except that the size range of the predominant distribution was somewhat higher than had been inferred.

Using the initial data as a guide, a preliminary algorithm was developed for data analysis to correlate MDN's, in-situ rock properties, and excavation methods. The quantitative relationship sought was a predictor equation, obtained by multiple regression of the physical property data obtained from the rock sample tests and a predictor equation for the MDN. A discussion of this technique Is included as Appendix D.

During algorithm development, resampling at four of the original Bites confirmed the distinctive shape of the size distribution curves. Sampling at other sites produced some curves which fit well into the original categories and others which were distinctive enough to suggest establishing additional categories. Using the data available at the end of the first year, curves of similar form were plotted together, and tentative designation numbers were assigned. The resultant composites are shown as Figures 3-3 through 3-11.

The "T" prefix was added to all MDN's to indicate the preliminary nature of the assignments. Parameters available for the analysis of all samples included values of uniaxial compressive strength (fc), rock quality designation (RQD), and dry unit weight (DUW) for which quantitative values were determined by field observation and testing. To avoid reducing data derivatives to extremely small values, rocks with compressive strengths of IK psi or less have been assigned arbitrary strengths of 1. Rock classifications by origin were quantified as igneous =1, metamorphic = 2, and sedimentary = 3; and ground water occurrence was quantified as dry = 1, minor = 2, and wet = 3. The order and magni- tude of the number assignment is immaterial since these are modified in the analysis in nearly any case, Schmidt hardness valueb ,'H) are converted Shore values, where available, or inferred from data published by D. U. Deere, et al. , in the "Engineering Classification and Index Properties for Intact Rock" leferenced above.

Cutter spacing (CS) appeared to be an important TBM characteristic. Average dimensions were available for disc cutter and some drag cutter machines. For roller cutters for which no kerf pattern is apparent, values were obtained by dividing the body spacing by the number of buttons adjacent to a line along the face of the cutter and parallel to ;he axis of rotation. No kerf spacing was available for Alpine and Atlas-Copco TBM's. Net thrust values per square foot of face area (T) were available for TBM's with the same exceptions.

3-7

No appropriate operating parameters were available for the Alpine and Atlas-Copco machines or for the shield operations sampled, and the number of observations was insufficient to warrant analysis as a special case.

Parameters peculiar to conventional operations, face area per drill hole (A/H), and explosives per cubic yard excavated (PF) were calculated from collected data.

An initial analysis using rock properties alone led to a predictor equation for which the accuracy, described by the multiple correlation coefficient, was 72 percent. This was expected since operating parameters were not included. Seventeen sets of data were analyzed for machine operations using the values tabulated below:

Colum DA

n TA FO

1 MDN

R ANAJ 2

LYSIS, 3

MAC 4

HINE ( 5

iPER. 6

ACTIONS 1 7 1 8 9 Ident. Obs. Class f ROD DUW H GW CS T No. No.

5-1 1 2 3 22 9*: 166 49 0.20 3. 56 7-2 2 2 3 22 92 166 49 0. 20 2. 91

LAW-2 3 3 3 19 100 160 42 0.20 4. 28 LAW-3 4 3 3 19 100 160 42 0.20 4. 28 LAW-4 MIL-1

5 6

3 4

3 3

19 36

100 85

160 166

42 50 2

0.20 0.16

3.76 6. 09

MIL-2 7 4 3 36 85 166 50 2 0.18 6. 09 QL-1 8 4 2 11 30 165 37 2 0.18 3. 53 CL-1 9 5 2 9 10 174 45 2 0.09 5. 09 NAST-2 10 5 18 90 167 55 2 0.09 3. 89 NAST-4 11 5 24 90 160 55 2 0.09 8.45 LK-5 12 5 32 92 165 55 1 0.24 4.46 LK-6 13 5 7 86 137 50 1 0. 13 17. 20 NAST-1 14 5 18 90 167 55 2 0.09 3.89 LAY-1 15 6 3 10 84 150 47 1 0.24 2. 73 NAV-1

I NAV-2 16 6 3 2 70 142 25 1 0. 30 1. 31 17 7 3 1 60 117 25 1 0.30 0.37

Results of stepwise regression, as shown in detail on Figure 3-1 following, indicate an accuracy of slightly more than 90 percent with a' standard error of 0.8360 and the listed residuals.

3-8

MULTIPLE CORRELATION COEFFICIENT.. F FOR ANALYSIS OF VAR, <D.F. « 8» STANDARC» ERROR OF ESTIMATE ,

8) 0.9081 4.7026 0.8360

VARIABLE 5 7 2 8 3

9

REG. COEFF. -6.89554E-02 2.29/17

-.469846 17.7298

-6.63157E-02 .104435

-6.17628E-03 -3.90019E-02

INTERCEPT(A) 6.98974

STO. ERR-COEFF. 3.55e58E-02 1.14621 .381356 11.4412 5.89690E-02 6.65627E-02 1.61827E-02 •1035BG

COMPUTED -1.93772 2.00414

-1.23204 1.54964

-1.12459 1.56898

-.381659 -.376511

TABLE OF RESIDUALS OES. Y OBSERVED Y ESTIMATED

1 2.000 2.928 2 2.000 2.953 3 3.000 2.732 4 3.000 2.732 5 3.000 2.752 6 4.000 3.637 7 4.000 3.991 8 4.000 5.270 9 5.000 4.084

10 5.000 5.037 H 5.000 4.944 12 5.000 4.574 13 5.000 5.231 14 5.000 5.037 15 6.000 5.409 16 6.000 5.399 17 7,000 7.288

RESIDUAL -0.928 -0.953 0.268 0.268 0.248 0.363 0.009

-1.270 0.916

-0.037 0.056 0.426

-0.231 -0.037 0.591 0.6C1

-0.288

STD. RESID. -l.UO -1.140 0.320 0.320 0.296 0.435 0.011

-1.519 1.095

-0.044 0.067 0.509

-0.276 -0.044 0.707 0.718

-0.345

COMPUTER OUTPUT-TBM AND RBM DATA ANALYSIS.

FIGURE 3-1

3-9

Ten sets of data were analyzed for conventional operations, using the values tabulated below:

1 DATA FOR ANALYSIS. CONVENTIONAT. OP^R ATIOMC Column 1 2 3 4 5 6 7 8 9

Ident. Obs. MDN Class f RQD DUW H GW A/H PF No. No.

LK-l 1 1 1 25 83 162 55 1 5.4 4.0 LK-2 2 1 1 28 83 165 55 1 5.4 4. 0 LK-3 3 1 2 26 80 178 50 1 5.0 5. 0 LK-4 4 2 2 14 70 181 47 1 4.4 5. 5 GA-1 5 ■? 35 96 161 55 1 2. 1 6 1 11-3 6 3 22 90 152 43 1 5. 1 3. 5 H-l 7 3 32 80 162 52 2 2.6 5. 5 NAST-3 8 3 13 90 152 42 2 2.2 6. 3 H-2 9 3 39 80 164 55 2 2. 6 5.6 WNG-2 10 7 1 30 1 125 20 3 2.5 5.0

Results of the analysis, as shown in detail on Figure 3-2 following, indicate an accuracy of over 99 percent with a standard error of 0. 2062 ' and the listed residuals.

Incorporation of additional data from subsequent field work and testing will improve the reliability of prediction, although it is doubtful that the accuracy indicated for conventional operations will be maintained at the level of the preliminary analysis. In additional iterations of the analysis, it is proposed to substitute values of Young's modulus and Poisson's ratio being accumulated in the current program for the less important parameters. Current efforts to obtain data on effective or net torque for TBM's, to develop appropriate parameters for analysis of the drag cutter TBM and shield MDN's, and to confirm inferred Schmidt hardness values will be coniinued to provide additional variables for analysis. Analyses with complete data are scheduled for the remainder of the current program.

3-6 TRANSPORT SYSTEM SELECTION

A list of equipment capabilities, system constraints, and MDN applications which comprised this section of the annual report of the first year's program is included as Appendix E.

3-10

■

■

.1

MULTIPLE CORRELATION COEFfICIENT 0,9^9^ F FOP ANALYSIS OF VAR. (O.F. « 8, i) 92,^711 STANDARD ERROR OF ESTIMATE 0.20^2

VARIABLE 5

2

l

REG. COEFF, -1.82976E-02 -•237584 .75977

-1.37212 -3.41264E-02 -.879842

-3.07083E-02 4.07791E-02

INTERCEPT(A> 15.7937

TABLE OF RESIDUALS

STO. ERR-COEFF. 4,70338E-02 .534353 .787339 •48862

9.69424E-03 .801093

4.55421E-02 .147084

'

, ■

COMPUTED -.389031 -.444621

.964985 •2.60816 •3.52028 •1.0983 -.674285

.277251

OBS. NO. 1 2 3 4 5

7 8 9

10

Y OBSERVED 1.000 1.000 1.000 2.000 3.000 3.000 3.000 3.000 3.000 7.000

ESTIMATED 1.065 0.918 1.069 1.954 3.013 2.983 3.115 2.978 2.898 7.005

RESIDUAL -0.065 0.082

-0.069 0.046

-0.013 0.017

-0.115 0.022 0.102

-0.005

STO. RESID. -0.318 0.395

-0.336 0.221

-0.065 0.060

-0.556 0.109 0.495

-0.022

COMPUTER OUTPUT-CONVENTIONAL DATA ANALYSIS.

FIGURE 3-2

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Belt conveyor and hydraulic transportation parameters have been studxed under the current program. Standard belt conveyor design publi. catxons and available literature on hydraulic conveying were reviewed to determine the data required and the methods used in system designs.

The parametric mathematical models described in HN-8080 ' Materials Handling for Tunnels. - referenced in Appendix E. were revxewed for application in this study. It is apparent that muck size and size distribution, on which MDN's are based, as well as other physical property characteristics determined in the program can be used as input for the design formulae and the models.

fl, »iltdiÜCÄti0a ^ refinement of th« models, originally developed for the high advance rates of the future, will be necessary for direct applica ion to current operations. Some design parameters Le not well def'ne"'

in the references, and further study will be necessary to resolve differ ences in design philosophy which appear in the literature.

H.f.t Preliô!Jy deSign 0f * h>rdraulic muck disposal system based on data from a TBM tunnel is in process. Comparison between a design

olanntr n y ^ T eXtensive ^Pended conveyor installation is planned. One example of MDN application to each of the other transport systems will be provided. •«»Furl

3-21

4. POD IMPLICATTOMC

manufacturer's or contractor's organization.

ava-, KM?6^ 8election of transportation systems usually is based on

As an alternate to the design of a haulage system suitable for

.Lt; H011?6 ^ the CUrrent Pr0gram and «^sequent use of the

for research. laentmea as attractive areas

4-1

In summary, the current MDN program provides the basic data required for a rational, engineering approach to problem solutions in a most important subsystem of the rapid excavation process. It will show examples of data application and should be used to indicate the areas in which research and development of modifications or i^w methods would be most productive.

: ■ ■

. ■ :r ..':'';"'■; -''■?'.■*:':■''C.;''^'.; : it x-^.i^f

, ,

4-2

5. IMPLICATIONS FOR FURTHER RESEARrw

5.1 SAMPLE AND DATA COLLECTION

At the end of the current contract, it is expected that the following samples will have been collected, including 19 in 1972 and 1 collected but not tested in the 1971 program.

Excavation Method

Rock Strength "1 Very High High Medium Low

Very Low Total

Conventional 3 0

0 2 0

0

9 0

1 7 4

3

5 0

1 5 1

1

1 0

2 1 0

1

1 2

1 0 0

2

19 2

5 15

5

7

Shield Machine Drag Cutters Disc Cutters Roller Cutters Combination Cutters

At completion, the current program will have produced samples from 11 operations and/or formations which have not been sampled previously and which will be available for additional field work. To conform to good sampling and testing practice, the reliability of the data should be confirmed by repetition, preferably of all single tests.

While the major interest of the program is in strong rocks, variations in muck characteristics with strength can only be demonstrated by Sampling the ful rang, of rock strengths excavated by any one method.7

As they are available, additional sites should be sampled in formations of varied strength, such as the fine grained igneous and volcanic rocks.

Statistically, the number of samples used in developing a predictor equation should be greater than the number of the variables used in the analysis Because the reliability of prediction is of major importance aaditional samples should be obtained in the following operations

1. Drag Cutter Machine excavation in High, Medium, and Low Strength rocks. These samples would provide a confirming data set in each strength category, and a total number of samples larger than the number of variables

5-1

2. Roller Cutter Machine tunneling to provide enough data to analyze this method by a separate regression.

3. Combination Cutter Machine excavation in Low Strength rock to confirm data from a single sample collected previously.

■

4. Conventional tunneling in Low and Very Low Strength rocks to confirm data from single samples collected previously.

5. Disc Cutf-er Machine tunneling in Low Strength formations to improve the spread of the data on this method.

6. Disc Cutter Machine tunneling with tungsten carbide button insert cutters as a promising development in machine excavation of strong rocks.

5.2 PHYSICAL TESTING

Although problems have been enountered in obtaining consistent

IZ !uT u ^ hardneS8 te8t8 on core samples, development of test methods should continue because it is the only fast and inexpensive known test to measure the property of rocks.

Abrasiveness testing should be initiated as soon as possible and continued within the limit of available funds to provide data for the cost analysis phase of equipment selection.

The modified Protodyakonov test for resistance to fragmentation should be investigated for effectiveness and cost to evaluate development of data on this rock property for use in regression analysis and prediction of MDN1 s. y

5.3 INNOVATIVE TECHNIQUES

Unusual rock breaking techniques now under development, such as the electron beam the water cannon, the conical borer, and continuous application of explosives may become standard practice in the future Sampling muck from tests of these methods whenever possible is recommended.

5-2

6. SPECIAL COMMENTS

A Schmidt rebound hardness tester and two MSA self-rescuers were purchased for use in the current program. No irvention has been made in the course of the work performed under this contract.

6-1

GLOSSARY

ASTM American Society for PF Powder Factor Testing and PMSRC Pittsburgh Mining Materials and Safety

BM Beam Research Center CFM Cubic feet per minute POT. Potential CNTR Center PSF Pounds per square foot COMPR. Compressed PSI Pounds per CONTIN. Continuous . square inch CONV Conveyor Rect. Rectangular CY Cubic Yard REG. Regular DEC. Degrees RBM Raise Boring Machine D1A. Diameter RPM Revolutions per Minute DUW Dry Unit Weight ROD Rock Quality Est, (E) Estimated Designation FWD Four Wheel Drive SF Square Foot GPM Gallons per Minute ST Scoop Tram HP Horse Power SPECIF. Specific HRS. Hours STRNTH. Strength IN. Inch TBM Tunnel Boring INTEG Integral Machine Iiiker. Internal TC Tungsten Carbide K Thousand TCB Tungsten Carbide LBS, # Pounds Button LHD Load Haul Dump T Tentative LT Long Ton T. Ton MDN Muck Designation V Vole

Number VOL Volume MAX Maximum w/ Wich Moist. Moisture WT. Weight MM Millimeter i Foot NA. Not Available " Inch NO. Number # Number PCF Pounds per % Percent

Cubic Foot (+) Plus PCX Percent (-) Minus

6-2

APPENDIX A

TUNNEL PROJECTS

Compiled by Holmes & Narver, Inc., Anaheim, California, under U. S. Bureau of Mines Contract H0220023. Revised September 1, 1972

NORTH AMERICAN CONTINENT

Project and Location

Lakeshore Mine Casa Grande, Arizona

Owner or Agency

Hecla Mining Co. El Paso Natural Gas

Size

U'xlS1

Plus Level Development

Length Contractor

7,500' Hecla Mining Company Own Force

The two 7,500' headings, declines at a minus 15°, are nearing completion. Levels are being developed at 900' and 1,400' vertically below the portal. Formations include mylonite, quartzite, tactite, and quartz rnonzonite. A raise boring machine has started a series of holes to the development levels.

Superior Mine Superior, Arizona

Magma Copper Company

lO'xlO' Various Own Force

Drifting on five levels to connect existing workings with a new shaft, now within 300' of comple'aon at 4,200' depth. Formations are cretaceous conglomerate 7K to 10K psi, limestone 7K psi, quartzite to 20K psi. Operations are conventional.

San Manuel Mine San Manuel, Arizona

Magma Copper Company

12'xl2' Various Own Force

Main level drifting on two levels in quartz monzonite and monzonite porphyry, concurrent with shaft sinking to 3,700' depth. A 9,000' drift is planned to explore a new ore body from the bottom level of the new shaft.

Tonner The Metropolitan 11'6" #1 - 4,589' Shea #1 and #2 Water District of Diameter #2 -19,360' Construction Brea, Calif. Southern Calif. Company

A Calweld machine is being assembled at the sile to bore low strength sandstone and siltstone. Geologic data and cores are available from the owner agency.

A-l


Owiêr or Agency

Hunter Tunnel U. S. Bureau of Fryingpan Project Reclamation Merideth, Denver, Colorado Colorado

Size

lO'xIO'

Lengti

4.4 Miles

Contractor

Granite Construction Company

A conventional operatian m formations similar to the Nast tunnel. Lithologic and engineering property data have been collected from the U. S. Bureau of Reclamation. Excavation is scheduled for completion in October, 1972.

Nast Tunnel U.S. Bureau of Fryingpan Project Reclamation Merideth, Denver, Colorado Colorado

lO1 3 Milet Diameter

■

Peter Kiewit Sons Company

A Wirth boring machine has been replaced by conventional drifting in fault zones, and is scheduled to resume work in more competent rock in November, 1972. Formations are predominantly granite, granite gneiss, granite porphyry, and granodiorite with compress strengths from 18K to 24K psi. Rock is highly sheared in zones from a few feet to 400' thick.

ive

Foggy Bottom Rosslyn Tunnel Section C-4 Washington, D. C.

WMATA Washington, D. C.

le'S" Diameter Finished

Ball- 4,000' Shea- Each of S&M Two Bores Crastruction

J. V.

Excavation by conventional methods in gneiss under the Potomac River. The schistose rock structure is reported to result in high shear strength and low compressive strength. Lithologic and engineering property data has been collected from the WMATA.

Crescent Mine Osburne, Idaho

Bunker Hill Comppnv Kellogg, Idaho

lO'xIO' Various Own Force

Conventional drifting on several levels. Trackless equipment is used on the lowest level, at 6, 100' depth in quartzite, from which a lower level will be developed by a decline. The USBM Spokane Mining Research Center has collected voluminous rock property data at this site.

A-2 Rev. 9/1/72

Project and LoceJ;ion

Star Mine Burke, Idaho

Owner or Agency

Hecla Mining Company, Wallace, Idaho

Size

g'xlO'

Length Contractor

Various Own Force

Conventional drifting on several levels. Rail mounted equipment is m use on the lowest level, at 7, 094' depth, in quartzite.

Mt. Greenwood Tunnel Chicago, Illinois

Dept. of Public Works, City of Chicago, Illinois

lO^" Diameter

1.8 Miles 5. A. Healy Construction Company

A Robbms machine has finished Mt. Greenwood No. 1. Preparations are in progress to start Mt. Greenwood No. 2 in limestone, reported similar to that in the Mt. Greenwood No. 1. Geologic and rock data has been collected from the owner agency.

White Pine Copper Company White Pine, Michigan

Copper Range Company New York, Mew York

IS'l" Diameter IS'xg-l/Z' Rectangular

Various Tunneling by White Pine With Own Force

A Robbins machine, operating in sandstone since 1969 has passed through a conglomerate horizon into the overlying shale An Atlas-Copco machine is operating in the shale. Normal drifting is conventional. Existing rock property data includes compression, --azilian tensile, and Shore hardness test results

Nevada Test Site Mercury, Nevada

USAEC and Defense Atomic Support Agency (DASA) Mercury, Nevada

Various Various Reynolds Electrical and Engineering Company

Conventional and Alpine Miner tunnels may provide an opportunity for comparison of the muck produced by the two systems. Forma- tions are volcanic tuffs which vary from 600 to 4, 500 psi in unconfined compressive strength. Engineering property data has been collected hv the ü. S. Geological Survey and by DASA

A-3 Rev. 9/1/72

Project JMKJ

Location

Navajo Irrigation Project Farmington, New Mexico

Owner or Agency

U. S. Bureau of Reclamation Denver, Colorado

Size

20.5' Diameter

Length

3 Miles

Contractor

Fluor-Utah Engineering & Construction Company

A Dresser boring machine is operating in sandstone with an unconfined compressive strength of less than IK psi, and is expected to reach a 9. 7K psi sandstone as the tunnel advances. Completion is ocheduled for November, 1972.

Section 35 Kerr-McGee lO'xlO' Various Kerr-McGee Uranium Mine Corporation and Own Force Grants (Ambrosia S'xS' Lake), New Mexico

An Alpine Miner is operating in sandstone development headings, in which normal operations are conventional.

Kermac Potash Carlsbad, New Mexico

Kerr-McGee Corporation

IS'xS' Various Own Force

Goodman continuous miners are operating in s^lt-potash formations reported from 3K to 6K psi in strength.

Cross- Dept. of Public Irondequoit Works, Interceptor Tunnel, Rochester, Rochester, New York New York

IS^" 5-1/2 Tunnel Diameter Miles Constructors

(Greenfield- Ferrera- S.A. Healy, J. V.)

A Lawrence TBM is operating in formations reported as shale, limestone, and sandstone, compressive strengths 2K tc 20K psi. Geologic and rock data has been collected from the owner agency.

A-4 Rev. 9/1/72

Project and Owner Location or Agency Size Length Contractor

New York City, New York Contract #13

Dept. of Public Works, New York, New York

ll'S" and

9,200' Perini-B&R- G.H. Ball- S&M Constructors, J. V.

Two Jarva TBM's are operating in mica schist, with compressive strength reported 15K to 30K psi. Cores and rock test data are available from the owner.

Home stake Mine, Lead,

Horn?stake Mining Con.,.p.,ny

7-l/2,x 8-1/2'

Various Own Force

South Dakota

Conventional main level development drifting at 150' vertical intervals to 7, 100' deptfi in phyllites, quartz mica schists, quartzites, carbonates and silicates, ranging in strength from 5K to 40K psi.

Cross Town Waste water Interceptor

City of Austin, Texas

9' Diameter 10'

27,300'

30,500'

Granite Constr. Co. Peter Kiewit &

Austin, Texas Diameter Sons Company

A Calweld machine will bore 30,500' in clays and lime-tones. A Robbins machine will bore 27, 300' in limestones. Geologic and test data has been provided by the City of Austin.

Currant and Layout Tunnels Strawberry Aqueduct Heber Cit>, Utah

U. S. Bureau of Reclamation Denver, Colorado

lO^" Combined S. A. Healy Diameter Length Construction

4. 9 Miles Company

The Layout tunnel has been completed. A Robbins boring machine has started the Currant tunnel in conglomerate. Existing logs of drill holes show lithology, Compressive strength test results, from 14K psi to over 38K psi in the conglomerate, have been provided by the Bureau of Reclamation.

A-5 Rev. 9/1/72


Golden Goose II Uranium Mine Jeffrey City, Wyoming

Owner or Agency Size

, Western Nuclear, 8'xlO1

Inc.

Length

Develop- ment Drifts

Contractor

Owner Operated

An Alpine Miner equipped with a Serpentix conveyor is driving mining headings in soft sandstone. Conventional drifts are also being driven in similar formations.

Mathc "B" Mine

Cleveland Cliffs Iron Company Ishpeming, Michigan

lO'xlO' Various

Conventional timbered and untimbered development drifting on the 12th level in graywacke at 3,480' depth, conventional and Alpine Miner stope development in iron formation and ore above main levels.

■

Own Force

•

A-6 Rev. 9/1/72

APPENDIX B

RAW DATA SHEETS

Identification Page

B-l,B-2 KAST-1 NAST-2 B-3,B-4 NAST-3 B-5,B-6 NAST-4 B-7,B-8 GA^l B-9.B-10 H-l B-11,B-12 H-2 B-13,B-14 LK-1 B-15,B.16 LK-2 B-n.B-lS LK-5 B-19,B-20 LK-6 B.21,B-22 LK-7 B-23,B-24 SM-1 B-25,B-26 CL-1 B-27,B-28 LK-3 B-29,B-30 LK-4 B-3], B-32 MB-1 B-33.B-34 MB-3 B.35,B-36 ST-1 B-37, B-38 CR-l B-39,B-40 HS-1 B-41,B-42 NY-1 B-43,B-44 NY-2 B-45,B-46 QL-1 B-47.B.48 MB-2 B-49,B-50

Identification FaSe

B-51,B-S2 5-1 7-2 B.53,B-54 11-3 B-55,B-56 11-4 B-57,B-58 72-1 B-59,B-60 MSU-1 B-6l,E.6a MSU-2 B-63,B-64 LAW-2 B.65,B-66 LAW-3 B..67,B-68 LAW-4 B-69.B-70 MIL-1 B-71,B-72 MIL-2 B-73,B-74 MIL-3 B-?5,B-76 EVG-1 P.77.B-T8 EVG-2 B-79, 3.-80 LAY-1 B-8!,B-82 LAY-2 . B-83,B-84 NAV- ^ a-85, B-86 NAV-2 B-87,B-88 RO-1 B-89.B-90 WNG-1 B-91.B-92 WNG-2 B-93,B.>4 SF-l B-95,B-96 SF-2 B-97.B-98 KM-1 B.99.B-100

APPENDIX B ■

RAW DATA SHEETS

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Identification Page

NAST-1 C-l, C-2 NAST-2 C-3. C-4 NAST-3 C-5, C-6 NAST-4 C-7, C-8 GA-1 C-9, C-10 H-l C-ll, C-12 H-2 C-13, C-14 LK-1 C-15, C-16 LK-2 C-17, C-18 LK-5 C-19, C-20 LK-6 C-21, C-22 LK-7 C-23, C-24 SM-l C-25, C-26 CL-1 C-27, C-28 L.K-3 C-29, C-30 LK-4 C-31, C-32 MB-1 C-33, C-34 MB-3 C-35, C-36 ST-1 C-37, C-38 CR-1 C-39, C-40 HS-1 C-41, C-42 NY-1 C-43, C-44 NY-2 C-45, C-46 QL-1 C-47, C-48 MB-2 C-49, C-50

APPENDIX C

SYSTEM DATA SHEETS

UH Identification

5-1 7-2 11-3 11-4 72-1 MSU-1 MSU-2 LAW-2 LAW-3 LAW-4 MIL-1 MIL-2 MIL-3 EirG-l ^VG-2 ;-AY-I LAY-2 NAV-1 NAV-2 RO-1 WNG-1 WNG-2 SF-1 SF-2 KM-1

C-51 , C-52 C-53 , C-54 C-55 , 0-56 C-57 , C-58 C-59 , C-60 C-6J , C-62 C-63 , C-64 C-65 . C-66 C-67 , C-68 C-69 , C-70 C-71 C-72 C-73 C-74 C-75 C-76 C-77 C-78 C-79, C-80 C-81, C-82 C-83, C-84 C-85, C-86 C-87, C.88 C-89, C-90 C-91. C-92 C-93. C-94 C-95, C-96 C-97. C-98 C-99, C-100

I I I I

c- 1

APPENDIX C

SYSTEM DATA SHEETS

■

■

t-ii

ROCK DATA;

Lithology: Igneous, granite, gray, medium to fine grained, moderately to slightly fractured and jointed, 10 to 20% quartz, 50 to 60% feldspar, balance dark minerals.

Uniaxial Compressive Strength: 18KPSI. . RQD: (Estimated) 90%. Dry Unit Weight: 167 PCF. Ground Water: Minor, primarily from fault zones. Hardness: NA

TUNNEL DATA;

Size: 9' 9" diameter. Grade; (+)0.22%. Ventilation System; 10 KCFM, exhaust, 22" pipe to rear of conveyor,

16" to face. Utility System; 6" air line, 2'' water line, 6" pump line. Water Inflow: 5 to 20 gpm. Power System: 4160/480V. Haulage System; Muck, personnel, supplies by rail car», 36" gage,

70# rail. Support System; 4" ring and half sets, at; 41, 3' and 2* centers in bad ground,

13" wide x 10* - 16 gage plates secured by 4-1" x 7' grouted bolts as required.

EXCAVATION DATA;

Machine: Wirth Erkelenz, Hardrock Model. Weight: 67 tons. Cutters; 25 Hughes Tool/Wirth Tungsten Carbide Button. Gage; 6-111/2"

TCB roller. Interior; 15-11 1/2" TCB roller. Center; 2-11 1/2" roller and 2-11 1/2" TCB Cone.

Rotation; Head, 8 1/2 RPM. Torque: 150 K ft. # max. , 110 K ft. # operating Thrust; 290 If lbs. Muck System: Bucket from face, 22" belt conveyor to rear. Power System; 3-200 HP electrir motor driven hydraulic pumps driving

hydraulic motors. Guidance System; Laser.

MDN STUDY SYSTEM DATA SHEET Ident. No. NAST-1 9/1/72 MDN Sheet 1

C-l

■

I I I I,

0

0

Ü

0 D

L

MUCKDATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size(-) 0.065" ; 0

Spec. Gravity, Material SizeHO.SC" . 2.69

Liquid Limit 14. 50 % Plasticity Index o. 50 %

ATTERBERG LIMITS, MATERIAL SIZE (-) 0.185 IN#

Plastic Limit 14. 00 % Toughness Index 0. 16 %

MATERIAL SIZE (-) 0. 50 IN.

Shrinkage Limit 13,50 % Flow Index 3.0 %

Angle/Repose 1" Drop @ 9.0 % Moisture, 37o Angle Slide Steel Plate @ 9.0 % Moisture, 41°

Apparent Cohesion PSF @ % Moisture, NA Bulk Density PCF @ % Moisture, NA

Angle/Repose 10" Drop @ 9.0 % Moisture, 36° Angle Internal Friction @ 8.5 % Moisture, 42°

+6

SUMMARY Rock Class:

■#16 #30 #50 #100 #200

STANDARD SCREENS: ASTM STD. SPEC. El I-70 -#200

MUCK; PCT. BY WT. AND SHAPE BETWEEN SCREENS

Igneous: Granite, moderately to slightly fractured and jointed. Medium to fine grained. High strength. RQD (Est.) 90%. DUW: 167 PCF. Ground water: Minor, Hardness: NA

System Class: TBM, Wirlh Erkelenz, Hardrock, g^" dia. 25 Hughes Tool/ Wirth TCB roller and cone cutters. RPM: 8-1/2, 110 K ft # Torque, 290 K# Thrust. Mucking: Buckets to belt. Haulage: Rail. Support: Steel ring and half sets, rocfplates and rock bolts.

MDN STUDY 9/1/72

SYSTEM DATA SHEET MDN

Ident. No. NAST-1 Sheet 2

1

C-2

ROCK DATA;

Lithology: Igneous, granite, gray, medium to fine grained, moderately to slightly fractured and jointed, 10% to 20% quartz, 50% to 60% feldspar, balance dark minerals.

Uniaxial Comprassive Strength: 18 KPSI. RQD: (Estimated) 90%. Dry Unit Weight: 167 PCF. Ground Water: Minor, primarily from fault zones. Hardness: NA

TUNNEL DATA:

Size: 9,9" diameter. Grade: (+) 0.22%. Ventilation System: 10 KCFM, exhaust, 22" pipe to rear of conveyor,

16" to face. Utility System: 6" air line, 2" water line, 6" pump line. Water Inflow: 5 to 20 gpm. Power System: 4160/480V. Haulage System: Muck, personnel, supplies by rail care, 36" gage 70# rail. Support System: 4" ring and half sets, at 41, 31 ana 2* centers in bad

ground (approximately 6501), 13" wide x 10* - 16 gage plates secured by 4-1" x 7' grouted bolts as required, (approximately 1200').

EXCAVATION DATA:

Machine: Wirth Erkelenz, Hardrock Model. Weight 67 tons. Cutters: 25 Hughes Tool/Wirth Tungsten Carbide Button. Gage: 6-111/2"

TCB roller. Interior: 15-11 1/2" TCB roller. Center: 2-11 1/2" roller and 2-11 1/2" TCB cone.

Rotation: 8 1/2 RPM Torque: 150 K ft # max., 100 K ft. # operating. Thrust: 290 K lbs Muck System: Bucketrfrom face, 22" belt conveyor to rear. Power System: 3-200 HP electric motor driven hydraulic pumps driving

hydraulic motors and cylinders. Guidance System: Laser.

. .

- . ■


C-3

/

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size HCOSS" : 0

ATTERBERG LIMITS, MATERIAL SIZE (-)0.056 IN.

Spec. Gravity, Material Size (-) 0. 50" : 2. 66

Liquid Limit 19.5 % Plasticity Index 1.3%

Plastic Limit 18.2% T oughne s s Index 0.28%

Shrinkage Limit 17.9 % Flow Index 4.6 %

MATERIAL SIZE (-)l.O IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ 8.7 % Moisture, 38° @ % Moisture, NA Angle Slide Steel Plate Bulk Density PCF @ 8.7 % Moisture. 49° @ % Moisture, NA


ro i i r r r 1 1 r 1 ^^" ^mm^m ~~ ^"" mmmm

60 1>RY MN [T WE IGHT. LOOSE 76 PCF

[MOISTURE CONTENT 10.8» ~" ^^>v

JE 80

Ul

LARGEST SIZ E OBSERVED 1"x1"x%"

"" i

40 >- ™ CO

£ 30 u |

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10 / >

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1/ /2" #< ̂ #€ t #i« 5 #3 0 #5< D #i( )0 ^ tn I + 6"

SUMMARY Rock Class:

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 —#200

MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS

Igneous: Granite, medium to fine grained, moderately to slightly fractured and jointed. High strength. RQD: (Est.) 90%. DUW: 167 PCF. Ground water: Minor. Hardness: NA.

System Class; TBMf Wirth Erkelenz Hardrock. 9' 9" dia. 25 Hughes Tool/ Wirth TCB roller and tricone cutters. RPM: 8-1/2, 100 K ft # Torque, 290 K# Thrust. Mucking: Buckets to belt. Haulage: Rail. Support: 4" ring and halt sets, roof plates and rock bolts.

MDN STUDY 9/1/72



C-4

ROCK DATA:

Lithology: Igneous, biotitic granite, fine grained, with major quartz and minor feldspar and dark mineral contents.

UniaxialCompressive Strength: 13 KPSI. RQD: (Estimated) 90%. Dry Unit Weight: 152 PCF. Ground Water: Minor, from fault zones. Hardness: NA

TUNNEL DATA:

Size: 10* high x 16* wide x 8', alcove from 9l-9" diameter tunnel. Ventilation System: 10 KCFM, exhaust, 22" pipe. Utility System: 6" air line, 2" water line, 6" pump line. i

Water Inflow: 5-10 GPM. Power System: Not applicable. Haulage System: Muck, personnel, supplies by rail cars, 36" Gage, 70# rail. Support System: 1" x 7* grouted rock bolts and 13" x lO'-lb gage rooi: plates.

EXCAVATION DATA:

Conventional Rail Haulage System. Drilling: 2-S53F, 4' feed, jack legs. Drill Rrund: 72 holes, 1 3/4" diameter, 9' av. «lepth, double V-cut. Explosives: 300# Gelox #2-60%. Powder Factor, 6. 3#/CY. Blasting: Electrical, zero and 7 regular delays. Mucking: Diesel front end loader, 1/2 CY. Guidance: Not applicable.


C-5

I I I I 1 t I Q

0 0 L

0 c L

D I I I

MUCKDATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-) 0.056" : 0

Spec. Gravity, Material SizeHO.TS1' : 2.65

ATTERBERG LIMITS, MATERIAL SIZE (-) 0.056 IN.

Liquid Limit 19.5u% Plastic .Limit 17.41 % Plasticity Index 2.09 % Toughness Index 0.51 %

Shrinkage Limit 17. 13 % Flow Index 4. 10 %

MATERIAL SIZE (-)2.0 IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ 2.8 % Moisture, 39° @ 3.0 % Moisture, 80 Angle Slide Steel Plate Bulk Öens&y PCF @ 2.8 % Moisture, 31° @ 0.0"/( Moisture, 91.2


rv — r r r r 1 r 1 1 r r 60

DRY UNI IT WE IGHT. LOOSE 1.17 PCF "" MOISTURE CONTENT V4 %

' x VA' x V i 50 <9

LARG EST su S C B$ ERVED 2% .

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0

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1" 1/2" #4 #8 #16 #30 #50 #100 #200 f

STANDARD SCREENS: ASTM STD. SPEC. EII-7Ü -#200

MUCK; "CT. 8Y WT. AND SHAPE BETWEEN SCREENS

SUMMARY Rock Class; Igneous: Granitte, biotitic, fine grained. Mediuna strength. RQD (Est. ) 90%. DUW: 152 PCF. Ground water: Minor. Hardness: NA.

System Class: Conventional Rail. 10' high x 16' wide x 8' alcove. Two jack leg drills, 72-9' holes, double V-cut. PF 6. 3#/CY. Mucking: Diesel front end loader, 1/2 CY. Haulage: Rail. Support: Grouted rock bolts and roof plates.

MDN STUDY 9/1/72


C-6


ROCK DATA;

Lithology: Igneous, granite, fine grained, moderately fractured, major quartz and minor feldspar and dark mineral contents.

Uniaxial Compressive Strength: 24 KPSI. RQD: (Estimated) 9^%. Dry Unit Weight: 160 PCF. Ground Water: Minor, primarily from fault zones. Hardness: NA

TUNNEL DATA:

Size: 91-10" diameter. Grade: (+)0.22%. Ventilation System: 10 KCFM, exhaust, 22" pipe to rear of conveyor, 16"

to face. Utility System: 6" air line, 2" water line, 6" pump line. Water Inflow: 5 to 20 gpm. Power System: 4160/480V. Haulage System: Muck, personnel, supplies by rail cars, 36" gage 70# rail. Support System: 4" ring and half sets, at 41, 3' and 2* centers in bad

ground (approximately 650'), 13" wide x 10' - 16 gage plates secured by 4-1" x 7* grouted bolts an required, (approximately 1200*).

EXCAVATION DATA:

Machine: Wirth Erkelenz, Hardrock Model (Modified)*. Weight 67 tons. Cutters: 29 Hughes Tool Tungsten Carbide Button. Gage: 6-11 1/2" TCB

roller. Interior: 19-11 1/2" TCB roller. Center: 2-11 1/2" roller and 2-11 1/2" TCB cone.

Rotation: 8 1/2 RPM. Torque: 150 K ft. # max. , 125 K ft. # operating Thrust: 630 K lbs. Muck System: Bucket from face, 22" belt conveyor to rear. Power System: 3-200 HP electric motor driven hydraulic pumps driving

hydraulic motorb and cylinders. Guidance System: Laser.

^Modified by replacement of original by a Hughes Tool Co. cutting head and cutters.


C-7

I I I I 1 I

i I i

i

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-K). 056 : 0

Spec. Gravity, Material Size (-) 0.75: 2.64


Liquid Limit 19.20% Plastic Limit 18.97% Plasticity Index 0. 23 % Toughness Index 0. 06 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 6. 9 % Moisture, 39° @ 7. 1 % Moisture, 0 Angle Slide Steel Plate Bulk Density PCF ß, 6.9 % Moisture, 40° @ 0.0 % Moisture, 91

Shrinkage Limit 17. 50% Flow Index 3.40 %


ro — 1 DRY UNI T WE _GH T. ^09?E 83 pep

60 MOISTURE CONTENT 17.2 %

i

' x 1" x %" i 90 9 üi

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s40

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4

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10 ;5 / > IP JU

\ / \

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SHAPE

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+6"

SUMMARY Rock Class:

3" 2" I" 1/2" #4 #8 -#16

STANDARD SCREENS: ASTM STD. SPEC. El I-70 MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS

■#30 #90 #100 #200 \ -#200

Igneous: Granite, fine grained, moderately fractured. High strength. RQD (Est.) 90%. DUW: 160 PCF. Ground water: Minor. Hardness: NA

System Class; TBM, Wirth Erkelenz, Hardrock, with Hughes Tool head, 9" 10" dia. 29 Hughes Tool TCB roller and cone cutters. RPM: 8 1/2. 125 K ft # torque, 630 K# thrust. Mucking: Buckets to belt. Haulage: Rail. Support: 4" ring and half sets, roof plates and rock bolts.

MDN STUDY 9/1/72



C-8

ROCK DATA;

Lithology: Igneous, granite, massive, major feldspar and quartz, minor dark mineral content.

Uniaxial Compressive Strength: 35 KPSi RQD: (Estimated) 96% Dry Unit Weight: 161 PCF Ground Water: Minor, through fractures. Hardness: NA

TUNNEL DATA:

Size: 10'x 10* Horse shoe. Grade (-) 0. 22% Ventilation System: 8 KCFM, exhaust, 22" pipe. Utility System: 6" air line, 2" water line Water Inflow: 5-10 gpm. Power System: 110V. lighting Haulage System: Muck and supplies: Eimco 912 diesel. Support System: 4" WF steel sets @ 4' in ISO1 approx. at portal end; 1" x 7'

grouted rock bolts for approx. 35'.

EXCAVATION DATA:

Conventional Trackless System. Drilling: Crawler Jumbo, 2-D93 Drifters, 101 feeds. Drill Round: 48-1 3/4" holes, double V cut, 8' depth. Explosives: 175# Gelex #2-70%. Powder factor, 6. 1#/CY. Blasting: Electrical, regular delays, zero through #10. Mucking System: Eimco 912 diesel, front end loader. Guidance: Transit lines.

MDN STUDY SYSTEM DATA SHEET Ident. No. GA-1 9/1/72 MDN Sheet 1

C-9

I I I

0 s Ü

0

Q (1

0 1.

a

MUCKDATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-) 0. 056" : 0

Spec. Gravity, Material Size (-)0.75": 2.59

ATTERBERG LIMITS. MATERIAL SIZE (-) 0. 056 IN.

Liquid Limit 16. 20% Plastic Limit 15. 78 % Plasticity Index 0.42% Toughness Index 0.14%


Angle/Repose 1" Drop Apparent Cohesion PSF @ 0.9 % Moisture, 39° @ 0.9 % Moisture, 215 Angle Slide Steel Plate Bulk Density PCF @ 0.9 % Moisture, 34° @ 0. C % Moisture. 106

60

Shrinkage Limit 13.67% Flow Index 3.00 %

Angle/Repose 10" Drop @ 0.9 % Moisture, 36° Angle Internal Friction @ 0. 9 % Moisture, 46°

x (9 III

>- ffi

1Ü O

50

40

30

20

10

0

SHAPE

— r c 1 1 r r ^^"" r ■"" ■"■^ m^mm ^^~ " 1 MM.

DRY UN T ML IGHT. LOOSE 114 PCF

MOISTURE CONTENT l.Q *

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+ 6,



SUMMARY Rock Class; Igneous: Granite, massive, minor dark minerals. Very high strength. RQD (Est.) 96%. DUW: 161 PCF. Ground water: Minor. Hardness: NA

System Class: Conventional Trackless. 10' x 10- arch. Two machine jumbo, 48-8' holes, V-cut. PF 6. 1 #/CY. Front end loader mucking and haulage. Support: Steel sets at 4', 25%, occasional rock bolts in 730'.

MDN STUDY 9/1/72


Ident. No. GA-1 Sheet 2

C-10

ROCK DATA: .

Uthology: Igneous, granite, gray, fine grained, moderately jointed with 1. 5' to 2' bands of light tan pegmatite and laminated granite gneiss.

Uniaxial Compressive Strength: 32 KPSI. ROD: (Estimated) 80%. Dry Unit Weight: 162 PCF. Ground Water: Formations generally dry. Hardness: NA

TUNNEL DATA:

Size: 10" x 10', Modified Horseshoe. Grade: (+) 1/4% Ventilation: 15 KCFM, exhaust, 26" dia. pipe, 125 HP at 7200' from portal. Utility System: 8" air line, 4" water line, 10" pump line. Water Inflow: 20 GPM. (As much as 400 GPM in occasional pockets) Power System: 4160/440V. Haulage System: Muck, personnel, supplies by rail cars, 36" gage, 75# rail.

Three-15T. Goodman locomotives; 2 trains of 11 to 13 cars @ 4. 8 CY. Canton car transfer at 50' to 250' from face, passing tracks ©1500'.

Support System: 4" WF sets @ 4', 31 and 2' for 23%, 1" x 1" grouted bolts for 17%, Shotcrete: 500 psi @ 18 hrs., 3750 psi @ 28 days, for 16% of 7200'.

EXCAVATION DATA

Conventional Rail Systtm. Drilling: Rail mounted hydrojib jumbo, 4-CF99, & I-CFl33 drifters,

12* feed. Drill Round: 38 holes, 1-5" center hole and 37 at I 3/4" dia. Spiral Burn

Cut, 10 1/2' depth. Explosives: 183 lbs. Gelex #2-75% x 1-1/2" dia., and 20 lbs. Smooth-

tex 70% x 7/8" dia. in upper perimeter holes. Powder factor: 5 l/2#/CY. Blasting: Electrical, regular delays zero through 10. Mucking: EIMCO #25, rail, air operated. Guidance: Laser

MDN STUDY SYSTEM DATA SHEET Ident. No. H-l 9/1/72 MDN Sheet 1

C-ll

I I i

Ü

i.

i. Ö

D

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-) 0. 056" : 0

Spec. Gravity, Material Size{-)0.75" : 2.70

ATTERBERG LIMITS, MATERIAL SIZE (-) 0. 056 IN.

Liquid Limit 18.0% Plastic Limit 17.0% Plasticity Index 1.0% Toughness Index 0.23%

MATERIAL SIZE M 2. 0 IN.

Shrinkage Limit 13.4 % Flow Index 4.4%

Angle/Reprse 1" Drop Apparent Cohesion PSF @ 1.3 % Moisture, 40° @ % Moisture, NA Angle Slide Steel Plate Bulk Density PCF @ 1.3 % Moisture, 32

70

@ % Moisture, NA

Angle/Repose 10" Drop @ 1.3 % Moisture, 37° Angle Internal Friction @ 2.2% Moisture, 44°

60 DRY UN T WEIRHT, I.QQSE 107 PCF

MOISTURE CONTENT 3.4 4

LARGEST SIZE OBSERVED 3'x2'x V

AI

+ 6" 2" I"

STANDARD SCREENS

1/2" #4 #8 #16 #30 #50 #100 #200 | -#200 ASTM STO. SPEC. El I-70

MUCK: POT. BY WT. AND SHAPE BETWEEN SCREENS

SUMMARY Rock Class; Igneous: Granite, fine grained, with 1.5' to 2' bands of pegmatite and laminated granite gneiss. High strength. RQD (Est.) 80%. DUW: 162 PCF. Ground water: Minor. Hardness: NA.

System Class; Conventional Rail. 10' x 10' arch. Five machine jumbo, 38 10-1/2' holes, burn cut. PF 5. 5#/CY. Overhead loader mucking, rail haulage. Support: Steal sets at 2' to 4', 23%, rock bolts 17%, shotcrete 16%, in 7200'.

MDN STUDY 9/1/72


Ident. No. H-l Sheet 2

C-12

"•"WMHHHIlk f

■

ROCK DATA;

Lithology: Igneous, granite, gray, gneissic, moderately jointed. Uniaxial Compressive Strength: 39 KPSI RQD: (Estimated) 80% Dry Unit Weigh :: 164 PCF Ground Water: Generally dry - occasional flows through fractures Hardness: NA

TUNNEL DATA;

Size: 10'x 10'modified horseshoe. Grade: (+) 1/4% Ventilation Svstem? 8 KCFM exhaust, 26" pipe, 150 HP at 10, 000 from

portal. Utility System: 8" air line, 4" water line, 10" pump line Water Inflow 20-400 GPM, normal 135 GPM Power System: 4160/480/240V. Haulage System: Muck, personnel, supplies by rail cars, 36" gage, 75# rail.

Three-15T. Goodman locomotives, 3 trains of 5 to 7 cars @ 4. 8 cy. Canton car transfers at 50' to 2501 from face, passing tracks @ 1500' to 2500'.

Support System: Minor rock bolt support for last 2500'.

EXCAVATION DATA;

Conventional Rail System Drilling: 4 boom Hydojib jumbo, 4-CF99 + 1-CF133 drifters, 12' contin.

feed. Drill Round: 36-40 holes, 1 3/4" diameter, 11« deep, spiral burn cut with

5" center hole. Explosives: 200 lbs. 75% Gelex #2, 25 lbs. 30% Dupont 7/8" x 24" in back

holes. Blasting: Electrical, regular delays 0-10, Powder factor 5. 6#/CY. Mucking: EIMCO #25, rail, air operated Guidance: Laser

MDN STUDY SYSTEM DATA SHEET Ident. No. H-2 9/1/72 MDN Sheet 1

C-13

I I 1

E 0 II i;

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-)0. 056" : 0

Spec. Gravity, Material Size WO.TS" : 2.60


Liquid Limit 18.10% Plastic Limit 17.95% Plasticity Index 0.15 % Toughness Index 0.04 %

MATERIAL SIZE (-)2. 0 IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ 3.8 % Moisture. 38° @ 2.6 % Moisture, 30 Angle Slide Steel Plate Bulk Density PCF

3.8 % Moisture, 38° @ 0.0 % Moisture, 105

Shrinkage Limit 11.00 % Flow Index 3. 20 %

@


x o 111 » >- 03

u hi O.

70

60

50

40

30

20

10

0

SHAPE

! ! r r i 1 r r r r r r 1 "'

DRY UNIT WEJC^ IT. LOOSE 109 PCF

MOISTURE CONTENT 3. 4 %

<1%'x1'

"■

I-ARGE5' r SI? E C eSERVEDr, r ■ ■i

■~

^ w ^mm

^ % S SL if > v.

«" - "«? ■» I "^ 1? —■ oe ̂ „ /i .»- 13

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i /2" #< > #« #M i #^ r» #^ n #ir VI »; ̂ i i +6"

SUMMARY Rock Class:


MUCK; PCT. BY WT. AND SHAPE BETWEEN SCREENS

Igneous: Granite, gneissic, moderately jointed. Very high strength. RQD (Est. )80%. DUW: 164 PCF. Ground water: Minor. Hardness: NA

System Class: Conventional Rail. 10' x 10' arch. Five machine jumbo, 36 to 40 - 11' holes, burn cut. PF 5.6#/CY. Overhead loader mucking - rail haulage. Support: occasional rock bolts 7200' to 10,000'.

MDN STUDY 9/1/72


Ident. No. H-2 Sheet 2

T C-14

ROCK DATA;

Lithology: Igneous, biotitic quartz monzonite, fine to medium grained porphyry.

Uniaxial Compressive Strength: 25 KPSI RQD: (Estimated) 83% Dry Unit Weight: 162 PCF. Ground \V ater: None apparent Hardness: NA

- TUNNEL DATA:

Size: 18' wide x 16' high, arched back. Grade: (+) 5 1/2%. Ventilation System: 76 KCFM, pressure in heading, 48" pipe and tubing.

Underground fans 48", 150 HP, 2 stage. Exhaust in return airway to 3-54", 150 HF, 2 stage, surface fans.

Utility System: 6" compressed air, 2" water. Water Inflow: None apparent. Power System: 4160/220V for fans, 110 volt lighting. Haulage System: Wagner ST8 Scooptram to raise, chute loaded into rail

mounted skip. Personnel and supplies by diesel truck. Support System: 13 1/2" x 9' roof plates, 61 x 3/4" rock bolts @ 4'.

EXCAVATION DATA:

Conventional Trackless System Drilling: Gardner-Denver 3 boom jumbo, 1 PR123 and 2 DH 123 drifters,

12* feeds. Drill Round: 47 holes, 1 3/4" diameter, including 6 hjle burn cut, and

1 center hole, 4" diameter, all 10 1/21 deep. Explosives: 25# - 1 1/2" x 8", 60% or 75% primers, 25# - 7/8" x 16", 30%

in trim holes, 40# - 1 1/2" x 16", 45% in 6 hole burr cut, and 275# AN/FO in remainder of round. Powder factor: 4#/cy.

Blasting: Electrical, regular delays, 0 through 15. Mucking: Scooptram. Guidance: Laser.

MDN STUDY SYSTEM DATA SHEET Ident. No. LK-1 9/1/72 MDN Sheet 1

C-15

I I I I

e D 0 0 0

0 Ö

Ö

[

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-)O. 056" : 0

Spec. Gravity, Material Size(-)0.75" : 2.85


Liquid Limit 18. 10 % Plastic Limit 17. 98 % Plasticity Index 0. 12 % Toughness Index 0. 30 %

MATERIAL SIZE (-) 2.0 IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ 0.8 % Moisture, 33° @ 0.4 % Moisture, 435 Angle Slide Steel Plate Bulk Density PCF @ 0.8 % Moisture, 29° @ 0.0 % Moisture, 97.3

Shrinkage Limit 17.69% Flow Index 3. 90 %

Angle/Repose 10" Drop @ 0.8 % Moisture, 30© Angle Internal Friction @ 0.4 % Moisture, 43°

IV U r r r r r ■■•■ ̂^^ ""'' «MM

60 DRY UN (T WE IQHT. |.00§E 1 102 pep

MOISTURE CONTENT 0.4 %

(3' x 2'

■

■HB^ MM«M

t 50 URGE?" r siz E 0 BSERVED4',

111 "" ""

40 m \

5 30 x_

o ac. T bJ a to \

1 rrr*

10 S 'S Urn

- L

^ o ■""■ r ■—. IL ._. £L A/ ££_ « M at j^l

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i> /a" #4 t #6 #11 5 #3 0 #5 3 #l( )0 n ̂1 1 + 6"

SUMMARY Rock Class:



Igneous: Quartz monzon te, biotitic, fine to medium grained porphyry. High strength. RQD (Est. ) 83%. DUW: 162 PCF. Ground Water: Dry. Hardness: NA.

System Class: Conventional Trackless. 18' wide x 16' arch. Three boom jumbo, 47-10 1/2' holes, burn cut PF 4#/CY. Scooptram mucking and haulage to raise- rail skip to surface. Support: Roof plates and rock bolts at 4'.

MDN STUDY 9/1/72


Ident. No. LK-1 Sheet 2

C-16

ROCK DATA;

Lithology: Igneous, biotitic quartz monzonite, fine to medium grained porphyry, with minor steeply inclined joints.

Uniaxial Compressive Strength: 28 KPSI RQD: (Estimated) 83% Dry Unit Weight: 165 PCF Ground Water: None apparent Hardness: NA

TUNNEL DATA:

Size: 18' wide x 16" high, arched back. Grade: (+) 2%. Ventilation System: 7.2 KCFM, pressure in heading, 48" pipe and tubing.

Underground fans 48", 150 HP, 2 stage. Exhaust in return airway to 3-54", 150 HP, 2 stage surface fans.

Utility System: 6" compressed air, 2" water. Water Inflow: None apparent. Power System: 4160/220 for pumps and fans, 110V lighting. Haulage System: Wagner ST-8 Scooptram to surge pile at shaft station,

rail mounted skip to surface. Personnel and supplies by diesel truck. Support System: 13 1/2" x 91 roof plates, 6' x 3/4" rock bolts @ 4«.

EXCAVATION DATA:

Conventional Trackless system. Drilling: Gardner-Denver 3 boom jumbo, 3 PR123 drifters, 12' feeds. Drill Round: 47 holes, 1 3/4" diamfeter, including 6 hole burn cut, and

1 center hole, 4" diameter, all 10 1/2' deep. Explosives'. 25#-l 1/2" x 8", 60% or 75% primers, 25#-7/8" x 16", 30%

in trim holes, 40#-l 1/2" x 16", 45% in 6 hole burn cut, and 275# AN/FO in remainder of round. Powder factor: 4#/CY.



C-17

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-)0.056" : 0


Spec. Gravity, Material Size HO. 75": 2.73

Liquid Limit 20.50% Plastic Limit 19.14% Piastici'-y Index 0.36 % Toughness Index 0.058%


Angle/Repose 1" Drop Apparent Cohesion PSF @ 4.7 %Moistu-e.430 @ 4. 9 % Moisture, 210 Angle Slide Steel Plate Bulk Density PCF @ 4.7 % Moisture, 33° @ 0.0 % Moisture, 97.6

Shrinkage Limit 17. 29 % Flow Index 6.2 %

Angle/Repose 10" Drop @ 4. 7 % Moisture, 42° Angle Internal Friction @ 4.9 % Moisture, 39

70 •■■— •"■" —1 "I 1 1 ■"■"■"" n n "1 DRY UNIT WE rfiHT. LOOSE 103 PCF

60 ^^^ MOISTURE CONTENT 1.6 i

t- ... UARG EST SUE oe§i r.RVEP 3%' x 2' x 2' aE 50 o ' »

V 40 CD 1

V u 30 u r Hi 01 OA I 20 n t

y V — 10 -N «T £. Sf CL ^v m wa ti _ £. ̂ ^ ££. _. £L 2£. —

// 0

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f 6" 3" 2" + 6" STAI

MUCK: P

1" 1/2" #4 #6 #16 #30 #50 #1

4DHRD SCREENS: ASTM STD. SPEC. (£11-70 CT. BY WT. AND SHAPE BETWEEN SCREENS

00 #200 f -#200

grained SUMMARY Rock Class: Igneous: C Jua rtz m DUZ oni te, bi oti tic fi ne to me diu m

porphyry, minor steep angle joints. High strength. RQD (Est.) 83%. DUW: 165 PCF. Ground water: Dry. Hardness: NA

System Class; Conventional Trackless. 18' wide x 16' arch. Three boom jumbo, 47 - 10 1/2' holes, burn cut. PF 4#/CY. Scooptram mucking and haulage, rail ikip to surface. Support« Roof plates and rock bolts at 4'.

MFN STUDY

9/1/72



C-18

ROCK DATA;

Lithology: Igneous, biotitic quartz monzonite, fine to medium grained porphyry.

Uniaxial Compressive Strength: 32 KPSI RQD: (Estimated) 92% Dry Unit Weight: 165 PCF Ground Water: None apparent. Hardness: NA

TUNNEL DATA;

Size; 12' diameter vertical bore hole, reamed from 13121 to 1212' below collar, from a 13 7/8" diameter pilot hole.

Ventilation System; None in bore hole. Utility System; 5 to 10 gpm. Wüter for dust suppression through pilot hole. Water Inflow: Kor.e apparent Power System: 440V to surface drive motors. Haulage System: Wagner ST-8 Scooptram to surge pile at shaft station/

rail mounted skip to surface. Support System: None in bore hole.

EXCAVATION DATA; ■

Machine: Robbins H81R Raise Drill. Weight 49 tons. Cutters: 27 bobbins. Steel Disc. Gage; 3-12". Center; l-U". Interior: 19-12" single and 2-11" twin. Two sets of three 12" dia. TCB roller stabilizers are installed on third points below the cutter head.

Rotation, cutter head: 6 RPM. Torque: 260 K Foot Lbs. Full Load. Reaming Pull; Total 814K Lbs @ 2400 FSI, net 507 K#. Muck Disposal; Scooptram, underground. Power System; 3-440V, 100 HP motors, 1. 667: 1 gathering

box ratio. Guidance System: Survey in pilot hole.

MDN STUDY SYSTEM DATA SHEET Ident. No. LK-5 9/1/72 MDN Sheet \

C-19

. .-'■

/

I I I 1 0 &

0 fl

0 Ü

D 11 Ü

i.

fl

r

MUCK DATA

Abrasiveness N. A.

Pot. vol. Change, Material Size (-)O. 056" : 0

Spec. Gravity, Material Size(.)0. 056": 2.67


Shrinkage Limit 19.68 % Flow Index 5. D0 %

Liquid Limit 25. 00 % Plastic Limit 20. 95 % Plasticity Index 4. 05 % Toughness Index 0. 73 %


Angle/Repose 1" Drop Apparent Cohesion PSF @3. 4 % Moisture, 33° @ 3. 0 % Moisture, 75 Angle Slide Steel Plate Bulk Density PCF @3.4 % Moisture, 38° @ 0. 0 % Moisture, 100

70

Angle/Repose 10" Drop @ 3.4 %Moi«ture, 32° Angle Internal Friction @ 3.0 % Moisture, 37°

i- x o Ul *

>- CD

UJ a.

60

50

40

30

20

10

SHAPE

1 DRY UNJ T WEIGHT. LOOSE 94 PCF


' x 4" x %" UAR« 5ST Siz s c B5 ^RYEPZ'/i'

■

Ä?^

X* X \

> 57 W 1 V , -rf //.^

J r N ST

_«««^ ■ ■■■ ■■(■! . _._.R:L.

^ ^ ?*" "* 371

SO sr 0 /

D

PE PI PI A A A A A

T + 6

1/2" #4 #B #16 #30 #50 #100 #200 f -#200

,.. 2.. ,..

STANDARD SCREENS: ASTM STD. SPEC. El 1-70


SUMMARY Rock Class: Igneous: Quartz monzonite, biotitic, fine to medium grained porphyry. High strength. RQD (Est. ) 92%, DUW: 165 PCF. Ground water: Dry. Hardness: NA. System Class: RBM, Robbins H81R, 12' dia. 27 Robbins disc cutters, 6 RPM, 283. 5 Kft. # torque, 507 K# pull average. Mucking and haulage: Scooptram underground, rail skip to surface. Support: None.

MDN STUDY 9/1/72


C-20

Went. No. LK-5 Sheet 2

ROCK DATA:

Lithology: Igneous, biotitic quartz monzonite, fine to medium grained porphyry, frequent flat angled joints.

Uniaxial Compressive Strength: (Estimated) 7 KPSI RQD: (Estimated) 86%. Dry Unit Weight: 137 PCF. Ground Water: None apparent. Hardness: N. A.

... TUNNEL DATA:

Size: 4' diameter vertical bore hole reamed from 298' to 286' below collar from a 13 7/8" diameter pilot hole.

Ventilation System: Not applicable. Utility System: 5 to 10 gpm water for dust suppression through pilot hole. Water Inflow: None apparent. Power System: 440V to surface drive motors. Haulage System: Wagner ST-8 Scooptram to surge pile at shaft station/

rail mounted skip to surface. Personnel and supplies by diesel truck. Support System: None in bore hole.

■ ■ ■ ■ . :.. . ■ . ....■...,.■

EXCAVATION DATA:

Machine: Robbins H81R Raise Drill. Weight: 49 tons. Cutters: II-Robbins, Steel Disc. Gage: 1-12" twin. Center 1-12" single.

Interior: 4-12" twin. Thrae 12" TCB roller stabilizers are installed at third points below the cutter head.

Rotation, Cutter head: 6 RPM Torque: 260 K Foot/lbs. Full Load Reaming Pull: Net 207K# Muck Disposal: Scooptram underground. Power System: 3-440V, 100 HP motors, 1.667: I gathering

box ratio. Guidance System: Survey in pilot hole.


C-21

I I 0 fl

n U

u

D

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-)O. 056" : 0

ATTERBERG LIMITS, MATERIAL SIZE (-)O. 056 IN.

Spec. Gravity, Material Size(-)0e75M : 2.53

Liquid Limit 19. 40 % Plastic Limit 18. 16 % Plasticity Index 1.24% Toughness Index 0. 31 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 3. 7 % Moisture, 30° @ 0.2 % Moisture, 0 Angle Slide Steel Plate Bulk Density PCF @ 3. 7 % Moisture, 32° @ 0.0 % Moisture, 101

Shrinkage Limit 17. 27 % Flow Index 4. CD %


Ö t-

*

X (!) U » >-

.

OD

\- Z bJ o tu OL

70

60

50

40

30

20

10

0

SHAPE

DRY UN T WE GHT. LOOSF 90 PCF


LARGEST SIZE OBSERVED 2"x3V4"xiy«"

+ 6

3" 2.. ,■■ |/2'.

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS

SUMMARY Rock Jlass: Igneous: Quartz monzonite, biotitic, fine to medium grained porphyry, frequent flat angled joints. Low strength (Est. ). RQD (Est. ) 86%. DUV/: 137 PCF. Ground water: Dry. Hardness: NA.

System Class; RBM, Robbins H81R, 4' dia. 11 Rcbbins disc cutters. 6 RPM, 260 K ft # torque, 207 K # pull (average). Mucking and Haulage: Scwoptram underground, rail skip to surface. Support: None.

MDN STUDY 9/1/72



C-22

ROCK DATA:

Lithology: Igneous, quartz monzonite porphyry, intensely altered, coarse grained.

Uniaxial Compressive Strength: 7 KPSI. RQD: (Estimated) 35%. Dry Unit Weight: 158 PCF Ground Water: None Hardness: N.A.

TUNNEL DATA: ———^————————

Size: 151 wide x 14' high, arched back. Grade: (-) 26%. Ventilation System: 22 KCFM, pressure, 48" pipe and tubing, 150 HP ©650'. Utility System: 6" air, 2" water, 4" pump line. Water Inflow: Minor Power System: 4160/220, UOV lighting. Haulage System: Wagner ST-8 Scooptram to surge pile at shaft station/rail

mounted skip to surface. Personnel and supplies by Diesel truck. Support System: 13 1/2" x 91 roof plates, 6' x 3/4" rock bolts at 4'.

EXCAVATION DATA:

Conventional Trackless System. , Drilling: Three boom hydrojib jumbo, w/PR123 drifters on 12' feeds. Drill Round: 42 holes, 1 3/4" diameter, including 6 hole burn cut, and

1-4" diameter center hole, all 10 1/2' deep. Explosives: 25#-l 1/2" x 8", 60% as primers, 25#-7/8" x 16", 30% in trim

holes, 300#-l 1/2" x 16" in remainder of round. Powder factor: 4. 7#/CY. Blasting: Electrical, regular delays 0 through 15. Mucking System: Scooptram Guidance: Laser.


C-23

i

0

ü 0 Q

0

U Q

u

!.

L

MUCK DATA

Abrasiveness N. A.


Spec. Gravity, Material Size (-) 0.75" :2.68

ATTERBERG LIMITS, MATERIAL 3IZE (.) 0. 056 IN.

Liquid Limit 18.00% Plasticity Index 0. 88 %

Angle/Repose 1" Drop @ 1.7 % Moisture, 29° Angle Slide Steel Plate @ 1.7 % Moisture, 28°

70

60

Plastic Limit 17.12 % Toughness Index 0. 18 %


Apparent Cohesion PSF @ 0. 2 % Moisture, 70 Bulk Density PCF @ 0.0 % Moisture,114



x o

>- OS

bJ Ü

a.

50

40

30

20

10

0

SHAPE

r r 1 r r ■■"" "■— ■^

DRY UN [T WEIGHT. LOOSE 107 PCF


x25'x r

"'■' ^^Hm BBta

LARG ES: r siz E 0BS ERVE P. 25 "" ~

,

^ ül Hf,t

/J. f_t^ /♦. r** ̂ Ui — < \

\ ?7 ^ T, Ai /» UL i^ ̂ - fi

A A A A A A A A A A A

f e 2 1" z " II 1 /z" #t \ #8 #l( i #a T #R T #if ̂ n ^ >ni i

+ 6" STANDARD SCREENS: ASTM STD. SPEC. El 1-70


-#200

SUMMARY Rock Class: Igneous: Quartz monzonite porphyry, intensely altered, course grained. Low strength. RQD (Est.) 85%. DUW: 158 PCF. Ground water: None. Hardness: N.A.

System Class: Conventional Trackless, 15' wide x 14' arch. Three boom jumbo, 42-10 1/2" holes, burn cut. PF 4. 7 #/CY. Scooptram mucking and haulage rail skip to surface. Support: Roof plates and rock bolts at 4'.

MDN STUDY 9/1/72



C-24

ROCK DATA:

Lithology: Igneous, quartz monzonite, coarse «r/r.ined with many sulfide veinlets, highly fractured, pronounced orthogonal faulting.

Uniaxial Compressive Strength: 19K. RQD: (Estimated) 50%. Dry Unit Weight: 165 PCF Ground Water: Saturated below working levels. Hardness: N.A.

TUNNEL DATA:

Size: 12'x 12' Grade: (+)0.4% Ventilation System: 14 KCFM, pressure, 24" diameter pipe, 60 HP @ 400'

from airway. Utility System: 2" water, 4" airline, 8" pump line. Water Inflow: None upper levels, 20-200 gpm lower levels. Power System: 2400/480/240/110. Haulage System: Muck, supplies, personnel by railcars, 8 ton battery

locomotives, 10 ton bottom dump devel. cars, 36" gage, 45# rail. Support System: 10 1/2' x 12" x 12" wood posts, 12" H beam cap sets at 5'

centers in normal ground.

EXCAVATION DATA:

Conventional Rail System. Drilling: 3 boom hydrojib jumbo, CF79 drifters on 61 shells or D89 drifters

on 61 chain feeds. Drill Round: 52 holes, 1 5/8" diameter, including 2 hole wedge burn and 4

relievers, 51 depth. Explosives: 100# Carbamite per round (Amogel in wet ground). Blasting: #6 cape, 8* fuse, timed by order of connection to igniter cord.

(Primacord used in place of primer powder) Powder factor 3. 8#/CY. Mucking System: Eimco 40 loader. Guidance: Transit survey.

MDN STUDY SYSTEM DATA SHEET Ident No. SM-1 9/1/72 MDN Sheet 1

C-25

MUCKDATA

Abrasiveness N, A.

Pot. Vol. Change, Material Size(-) 0.056" : 0

Spec. Gravity, Material Size(-)0. 75" : 2.72





Angle/Repose 1" Drop Apparent Cohesion PSF @ 0.2 % Moisture, 36° @ 0. 2 % Moisture, 90 Angle Slide Steel Plate Bulk Density PCF @ 0.2 % Moisture, 28° @ 0.0 % Moisture, 112

Angle/Repose 10" Drop @ 0.2 % Moisture, 31° Angle Internal Friction @ 0.2 % Moisture,44°

70

60 DRY UNIT WEIGHT. LOOSE 97 PCF


SHAPE


#200

SUMMARY

Rock Class: Igneous: Quartz monzonite, course g-ained, many sulfide veinlets. Highly fractured, pronounced orthogonal faulting. High strength. RQD (Est.) 50%. DUW: 165 PCF. Ground water: Dry. Hardness: N. A.

System Class: Conventional Rail. 12' x 12'. Three boom jumbo, 52-5' holes, wedge cut. PF3.8#/CY. Eimco 40 mucker. Haulage: Rail. Support: Wood posts and steel cap at 5'.

MDN STUDY 9/1/72


Ident. No. SM-l Sheet 2

C-26

ROCK DATA;

Lithology: Metamorphic, granitic gneiss, highly metamorphosed, moderately to highly fractured, highly silicified.

Uniaxial Compressive Strength: 9 KPSI. RQD: (Estimated) 10%. Dry Unit Weight: 174 PCF. Ground Water: Minimal-drains to other workings. Hardness: NA

TUNNEL DATA:

Size: 13', round, Grade {+) 1/4 percent. Ventilation System: 10 K CFM. exhaust, 24" pipe Utility System: 4" air line, 2" water line. Water Inflow: 5-10 gpm. Power System: 4160/480V. Haulage System: Personnel, muck, supplies by rail cars. Support System: None.

EXCAVATION DATA:

Machine: Calweld, Hardrock model, #40. Weight: 200 tons. Cutters: 19-Smith Tool Tungsten Carbide Button, Gage: 6-GT-SH 8 roller.

Center: 1-TCB 24" tricone. Interior: 12-GT-MH8 roller. Rotation: Center cutter-26 RPM, Head-12 RPM. Torque: 347 K # max. Thrust: 1, 128 K #. 677 K# operating Muck Collection: Buckets from face, 24" conveyor to rear. Power System: 480V Electro-Hydraulic, 825 HP. Guidance System: Laser.

i

i Q 0

D 0 0 0 D D D

..

MDN STUDY SYSTEM DATA SHEET Ident. No. CL-1 9/1/72 MDN Sheet 1

C-27

I t I

0 0 D L

i

[]

L

i.

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size : NA

ATTERBERG LIMITS, MATERIAL SIZE

Liquid Limit NA % Plasticity Index NA %

Plastic Limit NA % Toughness Index NA %

MATERIAL SIZE IN.

Angle/Repose 1" Djop @ % Moisture, NA Angle Slide Steel Plate @ % Moisture, NA


Spec. Gravity, Material Size : NA

IN.

Shrinkage Limit NA % Flow Index iJA %

Angle/Repose 10" Drop @ % Moisture, NA Angle Internal Friction @ % Moisture, NA

70

60 4-

DRY UN T WEIGHT. LOOSE 87 PrF

MOISTURE CONTENT f^, ft ^

+ 6 -#16 #30 #50 #100 #200 f -#200 STANDARD SCREENS: ASTM STD. SPEC. El 1-70

MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS SUMMARY

strength. Ground water: Dry. Hardness: NA ' MedlUm

System Class: TBM, Calweld #40, 13' dia 19 Smifh Tool Tr~n n . . ^-RPM: Head U. ^r 26. 34^ ft7toCe7 «T^th t't" ^ tr,COne

Mucking: Buckels to belt. Haulage; RaU. Support: None.

u MDN STUDY

9/1/72 SYSTEM DATA SHEET

MDN Ident. No. CL-1

Sheet 2

C-28

ROCK DATA;

Lithology: Metamorphic, interlayered transition between quartzita and tactite. Moderately to strongly altered metasediments, with replacement pyrite, chalcopyrite and magnetite, and a higli percentage of silicates, very fine to medium grained.

Uniaxial Compressive Strength: 26 KPSI. RQD: (Estimated) 80% Dry Unit Weight: 178 PCF. Ground Water: None apparent Hardness: NA

TUNNEL DATA:

Size: 16' wide x 14 1/21 high, arched back. Grade: (+) 2%. Ventilation System: 52 KCFM, pressure in heading, 48" pipe and tubing.


Utility System: 6" compressed air, 2" water. Water Inflow: None apparent. Power System: 4160/220V for pumps and fans, 110V lighting. Haulage System: Wagner ST-8 Scooptram to surge pile at shaft station/rail

mounted skip to surface. Personnel and supplies by diesel truck. Support System: 13 1/2" x 9' roof plates, 6' x 3/4" rock bolts at 41.

EXCAVATION DATA:

Conventional Trackless System. Drilling: Gardner-Denver 3 boom jumbo, 3 PR123 drifters, 12' feeds. Drill Round: 42 holes, 1 3/4" diameter, including 6 hole burn cut, and

1 center hole, 4" diameter, all 61 deep. Explosives: 15# - 1 1/2" x 8", 60% or 75% as primers, 15# - 7/8" x 16",

30% in trim holes, 25# - 1 1/2" x 16", 45% in 6 hole burn cut, 150# AN/FO in remainder of round. Powder factor 5#/cy.


MDN STUDY SYSTEM DATA SHEET Ident. No. LK-3 9/1/72 MDN Sheet

C-29

A 3 MUCK DATA

fj Abrasivenesi

II N. A.

„,

D Ü

0 Q

0 D 1, l

i;

Pot. Vol. Change, Material Size(-)o. 056 ' ! 0


Liquid Limit 18. 25% Plastic Limit 17. 92 % Plasticity Index 0. 33 % Toughness Index 0. 06 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 1.5 % Moisture, 30° @ 0.4 % Moisture, 175 Angle Slide Steel Plate Bulk Density PCF @ 1.5 % Moisture, 29° @ 0. 0 % Moisture, 117.8

Spec. Gravity, Material Size(-) 0.75" : 3.21

(-) 0.056 IN.


Angle/Repose 10" Drop @ 1.5 % Moisture. 29° Angle Internal Friction @ 0.4 % Moisture, 41°

rv — r r i ! r r r —— '—

60 DRY UN IT WEIGHT. LOOSE 105 PCF "

MOISTURE CONTENT 0. 1 *

/ED 21/4'x1'xV4'

mmmm ' ■' ' —"■

x 50 LARfi EST SIZ E 0B5 LRV '"'

"~ "^^

. 40 m

5 30 m

o \ IF —

"~" IÜ

^ 20 s h" > g. ""

10 _..- ^ \

- m ___ /jW ~

fr ^^^ < ~"

o V i* a. ££. as ßä. 04. ^ IF

SHAPE <

AI AI AI AI AX AI AI AI AI AI AI

f 6 c 2 II i II 1, /2" #4 #e *\i 5 #3 3 #5( 3 #IC )0 i5 ̂ \ + 6-

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 MUCK; RCT. BY WT. AND SHAPE BETWEEN SCREENS

-#200

SUMMARY

Rock Class: Metamorphic: Quartzite-tactite transition, very fine to medium grained, with replacement sulphides and magnetite, high in silicates. High strength. RQD:{Est. ) 80%. DUW: 178 PCF. Ground water: Dry. Hardness: NA, System Class: Conventional Trackless. 16' wide x 14-1/2' arch. Three boom jumbo, 42-6' holes, burn cut. PF 5#/CY. Scooptram mucking and haulage, rail skip to surface. Support: Roof plates and rock bolts at 4".

I

£ MDN STUDY


MDN Ident. No. LK-3

Sheet 2

C-30

ROCK DATA;

Lithology: Metamorphic, tactite, strongly altered calcareous metasediments, Svith replacement pyrite, chalcopyrite and magnetite, and a high percentage of silicates, fine to very fine grained.

Uniaxial Compressive Strength: 14 KPSI RQD: (Estimated) 70% Dry Unit Weight: 181 PCF Ground Water: None apparent. Hardness: NA

TUNNEL DATA:

Size: 15' wide x 14' high, arched back. Grade: (+) 2%. Ventilation System: 50 KCFM, pressure in heading, 48|: pipe and tubing.


Utility System: 6" compressed air, 2" water. Water Inflow: None apparent. Power System: 4160/220V for pumps and fans, 110V lighting. Haulage System: Wagner ST-8 Scooptram to surge pile at shaft station/rail

mounted skip to surface. Personnel and supplies by diesel truck. Support System: 6" WF Steel Sets at 51.

EXCAVATION DATA;

Conventional Trackless System. Drilling: Gardner-Denver 3 boom jumbo, 3 PR123 drifters, 12' feeds. Drill Round: 42 holes, 1 3/4" diameter, including 6 hole burn cut and

1 center hole, 4" diameter; all 61 deep. Explosives: 15#-1 1/2" x 8", 60% or 75% as primers, 15#- 8" x 16" 30%

in trim holes, 25#-l 1/2" x 16", 45% in 6 hole burn cut, IDO* AN/FO in remainder of round. Powder factor 5. 5#/CY.

Blasting: Electrical, regular delays, 0 through 15 Mucking: Scooptram. Guidance: Laser


C-31

I t I 1 I I i: o D 0 0 L

i.

MUCK DATA

Abrasiveness N. A.


Spec. Gravity, Material Size {-) 0.75" : 3.36

ATTERBERG LIMITS, MATERIAL SIZE {-) 0. 056 IN.

Liquid Limit 19. 00% Plastic Limit 17. 95 % Plasticity Index 1.05 % Toughness Index 0.19%


Angle/Repose 1" Drop Apparent Cohesion PSF @ 2.0 % Moisture, 37o @ 0.2 % Moisture, 165 Angle Slide Steel Plate Bulk Density PCF @ 2.0 %Moisture,30o @ 0.0 % Moisture, 115

70

60


Angle/Repose 10" Drop @ 2. 0 % Moisture, 35° Angle Internal Friction @ 0. 2 % Moisture, 43°

x <o IU 3t

>- m

Hi

50

40

30

20

10

0

SHAPE

r r r r " 1 !

mmm^ ■MMM "■•

DRY UN ULWE IGHT. LOOSE 124 PCF

MOISTURE CONTF^T 2

'ED27"x18"x12,'

■~^— ■' C""* —— ~~"

LARGES- r SIZE c B5ER\ —

■"^"

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Ühta Al *"" "51 X, ~"

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AI AI AI AI AI AI AI AI AI A i AI

1 € ■a " 2 ■1 II 1 /?" #^ I #fi #i. i #^ r» #•; ^ «/ \r» 3C ̂ n I ' + 6'


-#200

SUMMARY

Rock Class; Metamorphic: Tactite. fine to very fine grained, with replacement sulphides and magnetite, high in silicates. Medium strength (Est ) RQD(Est.) 70%. DUW: 181 PCF. Ground water: Dry. Hardness: *N.A.

System Class; Conventional Trackless. 15' wide x 14' arch. Three boom jumbo, 42-6- holes, burn cut. PF 5. 5#/CY. Scooptram mucking and haulage rail skip to surface. Support. Steel sets at 5'.

MDN STUDY 9/1/72



' C-32

ROCK DATA;

Lithology: Metamorphic, interlayered bands of hematite and martite, highly jointed, normally flat lying, but often highly folded. Natural iron crrer 60%, silica 5%.

Uniaxial Compressive Strength: 7 KPSI. RQL: (Estimated) 10% Dry Unit Weight: 207 PCF Ground Water: Formation generally dry. Hardness: NA

TUNNEL DATA: ^^_^^.^_—_——_

9'-11 1/2" diameter; normal grade: 0%. Ventilation System: 3 KCFM, pressure, 8" dia. tube, 5 HP @ 250' from

main level. Utilities: 2" air line, 1" water line, 2-1 1/2" pressure and 1-3" return

hydraulic lines. Water Inflow: None Power System: 110V lighting, 440V to scraper hoist. Muck Haulage: 30 HP hoist, and 42" scraper to raise, all rail on main level.

Personnel, rail and ladders; supplies by rail cars and hoist. Support: Continuous; 9l-6" dia. x 4" WF sets at 45".

EXCAVATION DATA:

Machine: Calweld Oscillator. Wt: 69 K#. Cutters: 278 Carboloy drag bits. Gage: 20 rippers (experimental).

Interior: 258 "J" tools. Rotation: 8 RPM Torque: 1200Kft.#. Thrust: 300 K# max., 285 K# operating. Anchorage: Thrust on installed sets, 285K# operating. Muck Collection: Flight conveyor to rear of machine, removal by scraper. Power System: Remote power unit; 2-90 gpm, 2500 psi hydraulic pumps

and 125 HP motors on main level; thrust and rotation through hydraulic cylinders.

Guidance System: Survey.

MDN STUDY SYSTEM DATA SHEET Ident. No. MB-1 9/1/72 MDN Sheet 1

C-33

MUCKDATA

I I

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-)O. 056" ; Q

Spec. Gravity, Material Size (-) 0. 75" : 4. 34

Liquid Limit 17. 8 % Plasticity Index 2. 7

ATTERBERG LIMITS, MATERIAL SIZE (.)0. 056 IN.

%

Angle/Repose 1" Drop @ 6.:i % Moisture. 37° Angle Slide Steel Plate @ 6.2 % Moisture. 31°

70

Plastic Limit 15.1 % Toughness Index o. 66 %

MATERIAL SIZE {-) 2.0 IN.

Apparent Cahe.äion PSF @ 6.9 % Moisture, 235 Bulk Density PCF @ 0.0 7o Moisture, 141

Shrinkage Limit 13.9 % Flow Index 4. i %


60 PRY UMIT WE GHT. I nnc;F ^p Drp

MOISTURF CONTENT 7. 2 ^

LARGEST <UZE OB^FRVED 24" x 18"»8'

+ 6" X,i' #4 #8 #16 #30 #50 #100 ^200 f STANDARD SCREENS: ASTM STD. SPEC. El I-70 -#200

S!£IÜ PCT. BY WT. AND SHAPE BETWEEN SCREENS

SUMMARY Rock C1.^-g^L Metamorphic: Hematite and martite interlayered, highly jointed bedding normally flat, often highly folded. Low strength. RQD (Est. ) 10%. DUW: 207 PCF. Ground water: Dry. Hardness: NA.

System Class: TBM, oscillator, Calweld #53, 9'11 1/2" dia. 278 Carboloy drag bits. 8 RPM. 1200 Kft# torque. 285 K# thrust. Mucking: Flight conveyor and scraper to raise. Haulage: Rail. Support: Continuous, g^" dia. x 4" H sets at 45".

MDN STUDY 9/1/72


Ident. No. MB-1 Sheet 2

C-34

ROCK DATA;

Lithology: Metamorphic, interlayered hematite and martite, highly jointed, normally flat lying, often highly folded. Natural iron over 60%, silica 5%.

Uniaxial Compreosive Strength: NA PSI RQD: (Estimated) 10%. Dry Unit Weight: NA Ground Water: None Hardness: NA

TUNNEL DATA:

Size: 101 wide x g'-ö" (7' cap and 8' post). Grade: Level Ventilation System: 4 KCFM pressure, 8" diameter pipe and tubing, 15 HP @

600', and 8" exhaust, 5 HP @ 100'. Utility System: 2" airline, 1" water line Water Inflow: None Power System: 2300/440V. Haulage System Muck, 30 HP hoist and 48" scraper from surge pile at rear

of miner to chute - 160 CF cars, 30 ton tandem locomotives on 30" gage 60# r-ül to shaft pocket, 14 ton skips to surface.

Support System: 8"-58# WF sets, 7' cap, 8' post, at 4'-5", wood lagging and pipe spiling, 8-1" diameter or 6-2" diameter in back.

EXCAVATION DATA:

Machine: Alpine, Model F-6A Total Weight: 11 tons. Cutters: 68 Kennametal 43 KH carbide tipped "plumb bob" type, mounted on

twin ripper heads at 90° to boom. Rotation: 60 RPM about horizontal axis; boom moved vertically and hori-

zontally by hydraulic cylinders. Torque: 49. 6 HP. Thrust: Sumping thruot from 2-10 HP crawler motors. Anchor Pressure: Crawlers only. Muc Collection: Central 14" flight conveyor fed by two gathering arms on

in ui, d apron, discharging to surge pile. Power System: 440V. Guidance: Transit lines.

MDN STUDY 9/1/72


Ident No. MB-3 Sheet 1

C-35

ia<,«f^%v-iir-n,ii,itrfiiiftnlfii'ilii8'ii . ifWit i liiiiiHWÜ» Hi ■aataaaw ilmHiltollia „., inniMMMfflMiiiiiiii^ iiririiMffilliiimiiiiriilt

—

MTTCKDATA Test Data NA.

Abrasiveness N. A.

Pot. Vol. Change, Material Size :

ATTERBERG UMITS, MATERIAL SIZE

Spec. Gravity, Material Size :

Liquid Limit % Plasticity Index %

Angle/Repose 1" Drop @ % Moisture, Angle Slide Steel Plate @ % Moisture,

Plastic Limit % Toughness Index %

MATERIAL SIZE

IN.

Shrinkage Limit Flow Index %

IN.

Apparent Cohesion PSF @ % Moisture, Bulk Density PCF @ % Moisture,

Angle/Repose 10" Drop @ %Mjisture, Angle Internal Fri-'-'on @ % Moisture,

;:

60

x 50 o Ul

m

g 30

^ 20

10

0

SHAPE

r r r r MHH r r r r — —

u DRY U,M n WE IGHT. LOOSE PrP

— * MOISTURE CONTENT *

'x12"x10"

^^" ^^" ""^

i LAR& ES" r 5iz E OBS ERVED24 -_

"" — -

"^" mmm

— - -1 •

• _ __ —

■

; — ^^™"

I j __ "" "

—— ■

i i m^B —^

■ Test Data NA.

. t.. 6 + 6"

3" 2" 1"

STANDARD ! MUCK: PCT. B^

ly

;CR

r_w

ma

'2" #4 #8 #16 #3!

iENS: ASTM STD. SPEC. El T. AND SHAPE BETWEE

3 #50 #100 #200 ♦

1-70 -#200

M SCREENS

tyered, highly jointed, i

SUMMARY Rock Class: I ̂ et arr tor phi z: He itit j a ad i tia rtil :e i nte rl? bedding normally flat, often highly folded. Low strength. RQD (Est. ) 10%. DUW: NA. Ground water: Dry. Hardness: NA.

System Class: TBM, Twin head, Alpine F-6A, 10' wide x 9'6" heading. 68 Kennametal T. C. tipped bits. 60 RPM, 49. 6 HP head torque, 20 HP sumping thrust. Mucking: Gathering arms, flight conveyor. Haulage: Scraper to vail cars to skip. Support: Steel sets, pipe spiles.

MDN STUDY 9/1/72



C-36

^-.^^^^■^..■..iV-,^^^^.^..:,.^:; iHUiUii ■;..,.....î, l ...:... ..

I I i i

0 0

Size: 9' WxiO.?', 11/2' R. top corner arch. Grade: +1/2% n

Ventilation System: 7 KCFM pressure, 24" pipe and tubing, 40 HP at 800'. Utility System: 4" air line, 2" Water line. ^ Water Inflow: None to minor. Power System: 2300/480/120 (lighting). fl Haulage System: Muck, personnel, supplies by rail ars, 24" gage, 40# rail,

6 ton batter-/ locomotive, 60 CF side dump cars. Support System: 9' x 13" mats, parallel to centerline, 2 in top and 2 each

rib, 4 3/4" x 6' rook bolts per mat.

ROCK DATA;

Lithology: Metamo-phic, argillaceous quartzite, medium to thin bedded, moderately tc highly folded. Beds high angled to vertical, moderate fracturing sub-parallel to beds and vertical across beds.

Uniaxial Compressive Strenght: NA KPSI RQD: 75% (Estimated for vertical hole). Dry Unit Weight: NA PCF Ground Water: None Hardness: NA

TUNNEL DATA:

EXCAVATI3N DATA:

Conventional Rail System. T) Drilling: 3 boom jumbo, 2-S83F and 1-D99 machines, 8' ecrew feeds. Drill Round: 44 holes: 2-4" and 42-1 5/8" diameter, burn cut, 7' depth. Explosives: 100# Nilite, 25#-60 WR 1" x 16" primers. Blasting: Electrical, zero and 14 regular delays. Powder Factor: 5.4#/CY. Mucking System: Atlas-Copco LM56 overhead. Guidance: Transit lines.

MDN STUDY SYSTEM DATA SHEET Ident. No. ST-1 9/1/72 MDN Sheet 1

C-37

^^...^«»»^-^.„j^^—^^■■-Itom ^^^.„,..vj,|.W|,l4Y^1i'-t^«^^'---'--'^ :..^»^.a>j

i

I I I I I I

-,

MUCK DATA Test Data NA.

Abrasiveness N. A.



Liquid Limit % Plasticity Index %

Angle/Repose 1" Drop @ % Moisture, Angle Slide Steel Plate @ % Moisture,

Plastic Limit % Toughness Index %

MATERIAL SIZE IN.



IN.

Shrinkage Limit % Flow Index %

Angle/Repose 10" Drop (9) % Moisture, Angle Internal Friction @ % Moisture,

rv r r ! 1 r r r ^^^ 1 —-

60 DRY UNIT WE I(?h T, LOOSE PCF

MOISTURE CONTENT % ~ ™^

x 50 LARQ EST SIZ -: OBSER\ 'EC 48"x 12"x 18" ~"

o ÜJ

*' ' '

>■ m i-

o iLl

—

10

o

SHAPE i Test Data NA.

SUMlv Rock

6" +6"

3" 2" 1" 1/2" #4 #8 #16 #30 #50 #l(


)0 #200 f -#200

ctured.

IAB Cla ss: I viel :arr lor phi c: Ar gil lac eoi IS ( jua rtz ite , n iod en

X1:,

ite lyf ra moderately to highly folded, medium to thin bedded. Strength: NA. RQD (Est. ) 75%. DUW: NA. Ground water: None. Hardness: NA.

System Class: Conventional Rail: 9' x 10'7", 3 boom jumbo, 44-7' holes, burn cut. PF 5. 4#/CY. Mucking: Atlas Copco LM56 . Haulage: Rail. Support: Rock bolts and mats.

MDN STUDY 9/1/72


Ident. No. ST-1 Sheet 2

C-38

ito^'iVftm^f'-l-TîTtrWi^mr^ y-hnii.r.'nWi imüäim iiWiirti^-ri«^» . . . . .

mmmKmmaammtBm^K

ROCK DATA;

Lithology: Metamorphic, quartzite, with minor filled veinlets, thin bedded to massive, moderately folded,moderately to highly fractured/jointed, beds dip 75o-90o.

Uniaxial Compressive Strength: NA RQD: (Estimated) Vertical: 50%, horizontal 20-30%. Dry Unit Weight: NA Ground Water: Minor Hardness: NA

.

TUNNEL DATA:

Size: 10' x 10' with 1 1/2' top corner radius. Grade: (+) 0.5%. Ventilation: 13.5 KCFM, pressure, 24" diameter pipe, 80 UP @ 1700' from

cooling unit. Utility System: 4" air line, 2" water line, 2" pumpline. Power System: 2300/480/120. Haulage System: Muck, Eimco 912B-LHD to skip pocket, skips and rail to

surface. Personnel, Supplies: Bail, cage to level, LHD cr Jumbo on level. Support System: 13" x 9' plates, 5" x 5/8" rock bolts at 3 1/2', plates and rock

bolts on ribs where needed.

EXCAVATION DATA:

Conventional Trackless System. Drilling: 2 boom hydrojib jumbo, 8' feed, D-93 drifters. Drill Round: 48 holes, 1 5/8" diameter x 8' V cut. Explosives: 265#, 250# Nilite, 15# Trojan 60 WR. Powder factor, 9.5#/CY. Blasting: Electrical, Dupont Acudet 0-14 delay caps. Mucking: Eimco 912B-LHD. Guidance: Laser

MDN STUDY 9/1/72


Ident. No. CR-1 Sheet 1

C-39

iiiiliiliwtWBm-'iiirii-irii'-rfiiii .—.i...^..^,- ,i.,i^..^ ■:. tiift^Mmf?nl^ywiTrh - ::......;...-...:_:,..= ~

MUCK DATA Test Data NA.

Abrasiveness N. A.

Liquid Limit Plasticity Index



% Plastic Limit % % Toughness Index %

MATERIAL SIZE IN.


IN.

Shrinkage Limit Flow Index %

Angle/Repose 1" Drop Apparent Cohesion PSF @ % Moisture, @ % Moisture, Angle Slide Steel Plate Bulk Density PCF @ % Moisture, @ % Moisture,

Angle/Repose 10" Drop @ % Moisture, Angle Internal Friction @ % Moisture,

i o Ui je

>- CD

Z w o a: Hi a.

70

60

50

40

CO —■

20

10

0

SHAPE

r r 1 1 r r r 1 ! ■"* M«M ■■"^ - ^~

DRY UNIT WE IGHT. LOOSE PCF

MOISTURE CONTENT %

x14"x12"

111 ■■^ •^— ^^

LARGEST SIZE 0BS IBi rED30" —

-" ^^^

—

—

Test Data N/ J € M

V i" ? II H I /?" #4 i #B #i K ^^ rt #R T J*l/ \rt z: ̂ i i + 6'

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 MUCK; PCT. BY WT. AMD SHAPE BETWEEN SCREENS

-#200

SUMMARY Rock Class; Metamorphic: Quartzite minor filled veinlets, moderately to highly fractured/jointed, moderately folded, beds dxp 75° to 90°. Strength: NA. RQD (Est. ) 50%. DUW: NA. Hardness: NA..

System Class: Conventional Trackless: 10' x 10' , 2 boom jumbo, 48-8' holes, V cut. PF9. 5#/CY. Mucking: Eimco 912B. Haulage: LHD. Support: Rock bolts and plates.

MDN STUDY 9/1/72

SYSTEM DATA SHEEl MDN

Ident. No. CR-1 Sheet 2

C-40

ROCK DATA:

Lithology: Metamorphic, phyllite, with vein quartz and chlorite schist, highly metamorphosed and folded, with minoi faulting.

Uniaxial Compressive Strength- 19 KPSI RQD: (Estimated) 70% Dry Unit Weight: 187 PCF Ground Water: Dry Hardness: NA

TUNNEL DATA:

Size: 7'-6" wide x 8'-6" arch. Ventilation: 7 KCFM, 16" diameter pipe, 30 HP ©3 30'. Fan integral with

mechanical cooling unit. Utility System: 2" water line, 2" air>ine, 4" water line to cooling unit. Water Inflow: Minor Power System: 2400/440/110V. Haulage System: Muck, supplies, personnel by railcars, 6 and 8 ton

locomotives 1 1/2 ton rocker dump ',ars, 18" gage, 40# rail car passes 80'-300' from face.

Support System: Normally none, 5/8" x 6' rock bolts as required.

EXCAVATION DATA;

Conventional Rail System Drilling: 2-61 feed air legs, mounting 3" jackhammers. Drill Round: 34 holes, 5-2" diameter burncut, circular or box relievers

29 x 1 1/4", average advance 10' per round. Explosives: 140#, 131# AN/FO, 9#-l x 6", 60% primers. Blasting: Electrical, 7 millisecond delays, 10 regular delays.

Powder factor , 7.0#/CY. Mucking: Eimco, mode) 21. Guidance: Transit survey.

MDNSTUDf SYSTEM DATA SHEET Ident. No. HS-1 9/1/72 MDN Sheet 1

C-41

^^^■-,j.J.^JW^^,.»îe-^.Ji»m<J;i.aJi.J,.^..J.JJafe»t ^^^^^.»^—„..jî..«^,^^

ü

MUCK DATA

Abrasiveness N. A.

Liquid Limit 18. 80% Plasticity Index 2. 74 %

Pot. Vol. Change, Material Spec. Gravity, Material Size (-)O. 056" : 0 Size (-)O. 75" : 2.34


Plastic Limit 16.06 % Toughness Index 1, 01 %

MATERIAL SIZE {-) 2. 0 IN.


Aagle/Repose 1" Drop Apparent Cohesion PSF @ 3.1 % Moisture, 40° @ 2. 0 % Moisture, 160 Angle Slide Steel Plate Bulk Density PCF @ 3.1 % Moisture, 31° @ 0,0 % Moisture, 99


HI

>- m

2 ÜJ o BC iii a.

70

60

50

40

30

20

10

0

SHAPE

— r r L JJ 1 1 r r — MM — — —

DRY UN [T WE IGHT, L00SE._ 102 PCF -~ ^™~

MOISTURE CONTENT 2 .2%

/ED 22"x18"x18" - - —

" ' -^ MMM —

LARG ES" r Siz E OPS ER\ "~^ —

1 1— "'"' ^■■^ ■■~"™" ■^^

~ ■""^

— 2S.3

s v —

N \

ifJM &3

•^ S ^ M, ^ "^^^

&* > \

V —

N Idi —+ Z.o_ I.Z az. o.f «£ ^^ 3.0

PA PA PA PA PA PA PA PA A A

f 6 3 2 H

1 II

l> /g" #1 ̂ #€ #1, > #3 3 #5( 3 #l( )0 PS 7r\ k + 6'

STANDARD SCREENS: ASTM STD. SPEC. El 1-70

MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS -#200

SUMMARY

Rock Class; Metamorpliic: Phyllite witti vein quartz and chlorite schist, highly metamorphosed and folded. High strength. RQD (Est.) ?0% DUW: 187 PCF. Ground water: Dry. Hardness: NA.

Sy3;6™0!*8^ Conventional Rail. 7' 6" wide x 8' 6" arch, two air leg drills, 34-10- holes, burn cut. PF 7. 0 #/CY. Mucking: Eimco 21. Haulage: Rail. Support: None.

MDN STUDY 9/1/72


Ident. No. HS-1 Sheet 2

C-42

twitfWIMMfriiiil'ii mmm

ROCK DATA;

Lithology: Metamoprhic, mica schist, occasional quartz laminations. Uniaxial Compressive Strength: NA RQD: (Estimated) 80%. Dry Unit Weight: NA Ground Water: Dry Hardness: NA

TUNNEL DATA:

Size: U'-6" diameter. Grade: (-)0.03%. Ventilation: 3.6 KCFM, exhaust, @ 3475', 20" diameter pipe, 40 HP. Utility System: 4" airline, 4" waterline, 6" pumpline. Water Inflow: 40 GPM Power System: 6600V/440V. Haulage System: Muck, supplies, personnel by railcars, 10 ton locomotive

17 CY cars, 36" gage, 70# rail. Support System: Half circle bolted steel lagging in fault zones, pinned to ribs,

EXCAVATION DATA:

Machine: Jarva, 12-1100, Total Weight: NA. Cutters: 30 Reed steel disc and 6 Jarva TCB disc. Cage: 6 TCB QKC-3W.

2 disc. Interior: 28 steel 3 disc QK3. Center: 2 ateel 5 disc QK-1 Rotation: NA RPM. Torque: NA. Thrust: NA. Muck Collection: Buckets from face, belt to rear. Power System; NA. Guidance: Laser.

MDN STUDY SYSTEM DATA SHEET Went. No. NY-1 9/1/72 MDN sheetl

C *3

i-imnniiiiiii ■ in WlriWiimtBM^^ -IMiriBWtMîMlIWItliliiriT^^

mm

MUCK DATA

Abrasiveness N. A.

Pol. Vol. Change, Material Size : NA


Liquid Limit NA % Plasticity Index NA %

Angle/Repose 1" Drop @ % Moisture, NA Angle Slide Steel PlAte @ % Moisture, NA

Plastic Limit NA % Toughness Index NA %

MATERIAL SIZE IN.



IN.

Shrinkage Limit NA % Flow Index NA %

Angle/Repose 10" Drop (S % Moisture, NA Angle Internal Friction @ % Moisture, NA

fV

1 ! r r 1 r r — —■ ^— r-i 60 DRY UNIT WE IGHT. LOOSE 101 PPF

—

^—.

MOISTURE CnNT(=NT 12.4% mmm^ ■^j —- —-

t -50 URQ E5' r siz E OPS ERVED2"x2J4"x %" ■~"-

1 •^■•

1 — —

>- 40

—

CD -

— S 30

MM mmmm

^ 20 —j b ' _____

_ 7 \ ^. ""

"' ' ■

/</) 10 ^

\ I2.i ^7 > 7* / ■^

71 ts

•~» 5J. ^ X5 ^ ^V 7.7

0 »f A ̂ Kl

1

SHAPE PAI PA PA PA AI A-P A-P A A

t t> 3 2 I U i/ '2" #4 #8 #if % #^f ■» ■ #R/ ■» *,r n - wTnr* r\ m —^

+ 6'

SUMMARY Rock Class

STANDARD SCREENS; ASTM STD. SPEC. El 1-70 MUCK; PCT. BY WT. AND SHAPE BETWEEN SCREENS

-#200

Metamorphic: Mica schist, occasional quartz lamination. Strength: NA. RQD (Est. ) 80%. DUW: NA. Ground water: Drv. Hardness: NA.

System Class: TBMj Jarva 12.1]00j lll6,( ^^ 30 Reed ^ ^ ^^

dxscs. RPM: NA, Torque: NA, Thrust: NA. Mucking: Buckets to belt Support: None.

MDN STUDY 9/1/72


Ident. No. NY-1 Sheet 2

C-44

i^.,.- .. ■,■..-■: . .\JJ^ ■ - - --n1||-rMtfte'iiilMa-^^-''i^-"^"-^-- -"■--' A^dsuibUimû^

MnHMMHnMBHHRHBHHHMMM^m

ROCK DATA;

Lithology: Metamorphic, mica schist, occasional quartz laminations. Uniaxial Compressive Strength: NA. RQD: (Estimated) 90%. Dry Unit Weight: NA. Ground Water: Dry Hardness- NA.

TUNNEL DATA-

Size: 81-6" diameter. Grade: (+)0.03%. Ventilation: 18 KCFM, exhaust @ 1500'. 12" diameter pipe. 40 HP Utility System: 4" airline, 4" waterline, 4" pumpline. Water Inflow: 20 GPM. Power System: 6600/440V. Haulage System: Muck, supplies, personnel by railcars 10 ton locomotive

13 CY cars, 36" gage, 70# rail. Support System: Half circle bolted steel lagging in fault zones, pinned to ribs,

EXCAVATION DATA:

Machine: Jarva 8-806. Total Weight: NA. Cutters: 14 Reed disc and 3 Jarva TCB disc. Gage 3 TCB disc QKC-3W

Interior, 12 TCB disc QC-3, center 2 steel tooth type. Rotation: NA RPM. Torque: NA. Thrust: NA. Muck Collection: Buckets from face, belt to rear. Power System: NA. Guidance: Laser.

MDN STUDY 9/1/72



C-45

niiiiiTiiTiitii -'■■■■ ,..■.....

I I I I I I 0

s 6

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size ; NA


ATTERBERG LIMITS, MATERIAL SIZE IN.

Liquid Limit NA % pia;3tic Limit NA % airinkage Limit NA %

Plasticity Index NA % Toughness Index NA %

MATERIAL SIZE IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ % Moisture, NA @ % Moisture, NA Angle Slide Steel Plate Bulk Density PGF

NA %

@ % Moisture, NA % Moisture, NA 70

60

Angle/Repose 10" Drop @ % Moisture, NA Angle Internal Friction @ % Moisture, NA

DRY UNIT WF^HT, .7oSE 97 p^

MOISTURF CONTENT 7.2^

+6" 2" I" 1/2" #4 #8 #16 #30 #50

STANDARD SCREENS: ASTM STD. SPEC. EM-70 MUCK: PCI. BY WT. AND SHAPE BETWEEN SCREENS

A #100 #200 f

-#200

SUMMARY

Rock Class; Metamorphic: Mica schist, occasional quartz laminations Strength: NA. RQD (E.t.) 90%. DUW, NA. Ground water- Q" Hardness: NA.

System Class: TBM. Jarva 8-806. 8'6" dia. 14 Reed and 3 Jarva discs and rollers. RPM: NA. Torque. NA. Thrust: NA. Mucking: Buckets to belt. Haulage: Rail. Support: None.

MDN STUDY 9/1/72


C.46


a'..^-.^.J.,u...T«.ri^«^jh^M.lW|^|l^ri|ti.ill|.Tiiri-,vir,,■!,■,..,;., vvi.,t.il;j,-|ii„; ii-ifiiiMin'riiltliir-rrmi i't--.j^.^. ■ruawint iiawffiiiftimwiti

ROCK DATA:

Lithology: Metamorphic, gray mica schist, occasional quartz seams, mica varies from dense fine grained to extremely coarse.

Uniaxial Compressive Strength: 11 KPSI. RQD: (Estimated) 30% Dry Unit Weight: 165 PCF Ground Water: Major inflow occurs in faults and fault zones. Hardness: NA

TUNNEL DATA:

Size: 11', diameter. Grade: (+) 1 to 3% Ventilation System; 4 KCFM exhaust 14" pipe. Utility System: 4" waterpipe, no airline. Water Inflow: 60 gpm, drains in ditch Power System: 4160/480V Haulage System: Muck, personnel, supplies by rail cars. Support System: None, occasional semi-circular plates pinned at spring

line in fault zones

EXCAVATION DATA:

Machine: Jarva, Mark 11-1100, Total Weight: 70 tons Cutters: 34 Reed, type QK steel multiple disc. Gage: 6 triple disc.

Center: 2-triple disc. Interior: 26 triple disc. Rotation: Cutterhead, 10. 75 RPM Torque: 244 K ft. # Anchor Pressure: Maximum 3,402 K#. Thrust: 1, 134 K#. operating Muck System.: Buckets from face, belt to rear. Power System: Four 125 HP, 480V motors drive head, 40 HP 480V motor

drive hydraulic system. Guidance System: Laser

MDN STUDY SYSTEM DATA SHEET Ident. No. QL-1 9/1/72 MDN Sheet 1

C-47

«ritiWn' AirrttirMWirM ■isiü^-iti iü.i.aasiKailfeaäsÄäü

I I I I I I I I i 4

I.

I

MUCK DATA

Abrasiveness N. A.


ATTERBERG UMITS, MATERIAL SIZE

Liquid Limit 24. 0 % Plastic Limit 23. 3 % Plasticity Index 0.7 % Toughness Index 0.17%

MATERIAL SIZE (_)2. 0 IN.

Angle/Repose \" Drop Apparent Cohesion PSF @ 9.8 % Moisture. 39° @ 9.3 % Moisture, 125 Angle Slide Stee't Plate Bulk Density PCF @ 8.4 %Moisture,40O @ o. 0 % Moisture, 75

Spec. Gravity, Material Size(-)0. 75" : 2.57

(-)0.056 m.


Angle/Repose 10" Drop @ 9.8 % Moisture, 37° Angle Internal Friction

^100 -^200 STANDARD SCREENS: ASTM STD. SPEC. El 1-70 —#200


SUMMARY

Rock_ClassL Metamorphic: Mica schist, dense,fine grained to extremely coarse occasxonal quartz seams. Medium strength. RQD (Est ) 30% DUW: 165 PCF. Ground water: Minor inflows at fault zones. Hardness: NA.

System Class: TBM, Jarva Mark 11-1100, 11 ■ dia. 36 Reed triple discs. RPM: 10.75. Torque: 244 K ft #. Thrust: 1,134K#. Mucking: Buckets to belt. Hauiage: Rail. Support: Minor, semicircular plates in fault zones.

MDN STUDY 9/1/72


Ident. No. QL-1 Sheet 2

C-48

.^BW..^^ ^^- ■ . ■.-^,^^^,.ja,„....... , ,— B_

ROCK DATA;

Lithology: Sedimentary, graywacke (-'argillaceous quartzite"), massive to medium bedded, highly folded and fractured, normal dip of bedding 30°

Uniaxial Compressive Strength: NA. RQD: (Estimated) 35%. Dry Unit Weight: NA. Ground Water: None. Hardness: NA.

TUNNEL DATA:

Size: 10' wide x 10.8'. Grade: (+) 2%. Ventilation System: 8 KCFM. exhaust, 16" diameter pHe, 30 HP @ 1800'

and pressure auxiliary, 8" pipe, 5 HP @ 100'. Utility System: 6" air line, 4" water line. Water Inflow: None. Power System: 2300/480/120V. Haulage System: Muck, personnel, supplies by railcars, 30- gage, 80# and

m Ta.il, 10 ton trolley locomoti/es, 200 and 140 C. bottom dump cars to skip pocket, 14 ton skips to surface.

Support System: Roof plates and 3/4" x 6' bolts as required.

EXCAVATION DATA:

Conventional Rail System.

Drilling: Hydrojib jumbo, 2 boom, D93 drifters, 1 1/4" round steel on 10' chain feeds.

Drill Round: 36 holes, 1 5/8" diameter, V cut, 8' depth. Explosives: 210#, 200# Aramonium Nitrate, 10#-7/8" x 8", 70% in ribs and

top. Powder factor, 7. bff/CY. Blasting: Detaprime primers, caps, fuse and igniter cord. Mucking System: Eimco Model 40 mucker. Guidance: Transit Lines.

MDN STUDY SYSTEM DATA SHEET Ident. No. MB-2 9/1/72 MDN

Sheet 1

C-49

Hflflj^HBIflBfikiji&^k^î

MUCKDATA

Abrasiveness N. A,

Test Data NA.


ATTERBERG LIMITS. MATERIAL SIZE Liquid Limit % Plasticity Index %

Angle/Repose 1" Drop @ % Moisture, Angle Slide Ste-il Plate @ % Moisture,

Plastic Limit Toughness Index

MATERIAL SIZE

%


IN.

Shrinkage Limit % Flow Index %

IN.


X

Hi

>- m

70

60

50

Angle/Repose IC" Drop ^ % Moisture. Angle Internal Friction @ % Moisture,

40 :

£ 30 o

a- 20

- 10

0

SHAPE

DRY UNIT WF T

3

GHT. LQOSF

MOISTURF CflMian i _E£f

LARGEST SIZE OB«:FRVED48"x 18"x 4

| TcstDabaNA

6 3M 2" '" l/2,r^4 #8 #,6" #30 #50

STANDARD SCREENS: ASTM STD SPEC. El 1-70 MUCK: PCT. 3Y WT. AND gs/APE BETWEEN SCREENS

#100 #s 200 -#200

T

SUMMARY

f^tffTlU Su ûT6?^7-' Graywacke' massive to medium bedded, normal DUW NATCF 'G/O d 'r^r^6'' NA S^^' ^ (Est. ) 35%. uuw. NA PCF. Ground water: None. Hardness: NA.

IFTTTT^ Conventional rail. 10' wide x 10. 8'. Two machine jumbo.

36 - 8' holes V cut. PF 7. 5 #/CY. Ovc rhead loader mucking - rail hauüge Support: Rock bolts and olates as rmnnir>*A 8 nauiage. Support: Rock bolts and plates as required.

MDN STUDY 9/1/72



C-50

ROCK DATA:

Lithology. Sedimentary, sandstone, fine grained, well compacted light brown, over 50 percent quartz.

Uniaxial Compressive Strength: 22 KPSI. RQD: 92 7o. Dry Unit Weight: 166 PCF Ground Water: Dry. Hardness: Shore 61.

TUNNEL DATA: ' ; —

Size: IS'-l" dia. Grade {-) 7% Ventilation System: 17 K CFM, exhaupt, 36" dia. pipe, 75 HP ©4100'. Utility System: 2" water line, 4" pump line. No air line - compressor on

machine. Water Inflow: 5-10 gpm Power System: 4160/480V Haulage System, Muck: 390' of 30" "piggy back" conveyor supported by a

monorail advances with the TBM, discharges on a 36" conveyor suspended from the back of the tunnel, Supply and Personnel: Diesel jeeps and trucks.

Support System: 6" x 8. 2# channels x 9. 5- or 13. 5^ @ 4' or 2', secured by 4-5/8" x 4' rock bolts. Channels also support monorail.

EXCAVATION DATA;

Machine: Robbins 181-122 Weight: 260 tons. Cutters: 47 Robbins, Steel Disc. Gage: 3-12". Center: 1-7 1/2" triple

Interior: 43-12". ' Rotation: 4 1/2 RPM (Center integral with head) Torque: l,720Kft. # Thrust: 1,580 K# max., yl4 K# operating. Muck Collection: Buckets fixed to head, discharging on a 30" conveyor Power System: Six-480V., 200 HP motors drive head. Hydraulic pumps

power thrust and anchor cylinders. Guidance System: Laser.

MDN STUDY SYSTEM DATA SHEET Ident. No. 5-1 9/1/72 MDN Sheet 1

C-51

'-f i .MfTMi**-*^-'^-^ .,.;->....,M..^..

mm

i I MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-) 0,065" : 0

ATTER3ERG LIMITS, MATERIAL SIZE (-) 0.185 IN.

Spec. Gravity, Material Size HO^": 2.73

Liquid Limit 16. 90% Plastic Limit 15. 50 % Plasticity Index 1.40% Toughness Indrx 0. 28 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 6.3 % Moisture, 35° @ % Moisture, NA Anple Slide Steel Plate Bulk Density PCF @ 6. 3 % Moisture, 28° @ % Moisture, NA

Shrinkage Limit 15. 8% Flow Index 5.0 %


fV r r 1 1 r mimm r HHH ■^~ ■MM! —

60 DRY

MQI?

UN [T WEIGHT. LOOSE 83 »CF '

TÜRE CONTENT «? 4

214" x 8" x %"

"~ ■m« nm —

t 50 UAR5 EST SIZ E 0BS jRYEP <9 UJ

r " ' ■MM

. 40 ~ >■ ffi ' '"

5 30 r o 4 \ v

"^^™ ' "

a 20 t \ ^HBIM

—i r ^"S s as —— mmmtm

10 4 \ ^ tie

T \ i* > ?^

0 „ (, *fi

"■* r.r-

u «£* r J^ '^~m

SHAPE PI PI PI PI PI A A A

t.. 6 + 6"

3" 2" 1" |/2" #4 #8 #16 #3(

STANDARD SCREENS: ASTM STD. SPEC. El MUCK: PCT. BY WT. AND SHAPE BETWEE

3 #50 #100 #200 |

r-70 -#200

N SCREENS

SUMMARY Rock Class: « Jed im ent arv 'I San dsl torn 2. i 'ine ' en rail lerl . V( r«n comnarfprl f>Tr<»f ^n(5«

quartz. High strength. RQD: 92%. DUW: 171 PCF. Ground water: Dry. Hardness: Shore 61.

System Class: TBM, Robbins 181-122, 18' 1" dU. 47 Robbins disc cutters. RPM: 4-1/2, 1,720 K FT. # torque, 914 K# thrust. Mucking: Buckets to belt conveyor. Haulage: Traveling conveyor - suspended conveyor - skip to surface. Support: Channels and rock bolts at 4' or 2', continuous.

MDN STUDY


MDN Ident. No. 5-1

Sheet 2

C-52

ttmm ■ -■IBMi.-iii i. i. UM' "ITüHiilWl ii nwrnrUB

ROCK DATA-

Lithology: ScUmentary, sandstone, fine grained, well compacted light brown, over 30 percent quartz. g

Uniaxial Compressive Strength: 22 KPSI ROD: 92%. Dry Unit Weight: 166 PCF. Ground Water: Dry. Hardness: Shore 61.

TUNNEL DATA-

Si-e: 18'-1" dia. Grade (+) 2%.

Ventilation System: 17 K CFM. exhaust. 36- dia. pipe. 75 HP @ 4800-

^JlT™ 2" Water line' 4,, PUmP line- NO a^r'^ " co-P«-o; on Water Inflow: 5-10 gpm. Power System: 4160/480V.

Haulage System. Muck: 390' of 30- -piggy back- conveyor supported by a

f^mZ b kanCf?.With the TBM' di8cha^- - - 36- convenor upended

trucks tUnn SUPPly ^ Per80nnel: Diesel jeeps and SU4P5/8-v8^ r^,8' 2# ChannelS X 9- *' " 13- ^ @ *' 0r ^ s"-ed by 4-5/8 x 4' rock bolts. Channels also support monorail.

EXCAVATION DATA;

Machine: Robbins 181-122 Weight: 260 tons

Cutters: 47 Robbins. Steel Disc. Gage: 3-12". Center: 1-7 1/2-triple Interior: 43-12". ' */« inpie,

Rotation: 4 1/2 RPM (Center integral with head) Torque: 1,720 Kft # Thrust 1,580 K# max.. 747 K# operating

Muck Collection: Buckets fixed to head, discharging on a 30- conveyor. Power System: Four-480V.. 200 HP motors drive head. Hydraulic pumps

power thrust and anchor cylinders.. pumps Guidance System: Laser.

Mon/«DY SYSTEM DATA SHEET ""«• N°- 7-2 V/1/7Z MDN Sheet I

C-53

. ''' H_ L_

I

I I I :

D L D i. 0

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (.) 0.056" : 0


Spec. Gravity, Material Size (-)O. 75": 2.63

Liquid Limit 23.0% Pia s ti c Limit 17.63% Plasticity Index 5.37% Toughness index 0.78%

Angle/Repose 1" Drop @ 2.6 % Moisture, 32° Angle Slide Steel Plate @ 2.6 % Moisture, 29°


Apparent Cohesion PSF @ 2. 8 % Moisture, 0 Bulk Density PCF @ 0.0 % Moisture, 92.8

Shrinkage Limit 17.58 % Flow Index 6.90%


rv

1 1 r r r \ r r r "— — — — — 1 1 1 60

DRY UN IT WE IQHT, LOOSE qo Pf.F

4. 0 ^

— " ■

MOISTURE CONTENT "^^^ ^■"^ ""'" ^^ -~"

x 50 WRG EST SIZ E 0B§ ERVED3"x9"x1" ■■™" ^~"

(9 Ul ~ ~"

■^■" " ' ' mmm

* v 40 m ~~

MM 1 ""J

£ 30 4 U NMBM

o 15 7 >

V «MMM ■MMM

^ 20 L > g* / S J&*

'" ' "' ■MMI 1

10 _ 4 \ —

Wr t \ y 7^ 0 ■Jg- --

j# V ^ r -* n. ̂ , UL & ^-i vr -C" SHAPE PI PI PI PI PI PI PI A A A

t 6 3 £ ii 1 II

i/ '2" #4 #8 *K 1 #3( ■) ■ ¥*t ■) #ir n • #9n ̂ 1 —'

STANDARD SCREENS: ASTM STD. SPEC. £11-70 —#200 MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS

SUMMARY ~ ■"

Rock_Class: Sedimentary: Sandston , fine grained, well compacted, over 50% quartz. High strength. RQD: 92%. DUW: 171 PCF. Ground water: Dry. Hardness; Shore 61.

!Y?t/e,nlSlaSS: TBM' RobbinS 181-122' IS'l" «"a. 47 Robbins disc cutters.

Hau f.! ^V !' 7, K FT * t0rqUe' 747 K# thrU8, MuCking: Buckets to belt ^nveyor. Haulage: Traveling conveyor - suspended conveyor - skip to surface Support: Channels and rock bolts at 4' or 2', continuous.

MDN STUDY 9/1/72


Ident. No. 7-2 Sheet 2

C-54

itmnn, ■ -r - n-

■

ROCK DATA;

Liithology: Sedimentary, "shale", massive to thinly-laminated, interbedded siltstone and shale, with minor sandstone and limestone layers. Grain size varies from fine to coarse, quartz content from 24 to 33%.

Uniaxial Compressive Strength: Four major beds: 22 K to 29 KPSI, three minor beds: 12 K to 17 KPSI. Weighted Average: 23 KPSI.

RQD: (Estimated) 90%. Dry Unit Weight: 152 PCF. Ground Water: Dry Hardness: Shore 41 to 55 parallel to bedding planes, 41 to 54 perpendi alar.

■

TUNNEL DATA;

Size; 24' wide x 7 1/21 rectangular. Grade: Varies Ventilation System: 80-100K CFM, pressure Utility System: 4" air, 4" water, 4" pump, where required. Water Inflow; Normally none. Power System: 110V. lighting-all equipment diesel or air powered. Haulage System: Wagner ST-5 Scooptrams, 16 ton shuttle cars to conveyors,

11/2 CY loaders for cleanup. Personnel and supplies, diesel jeeps and trucks.

Support System; 5/8" sc 6' rock bolts on 4' x 4" pattern, 11" wide x 10' roof plates where required.

.

EXCAVATION DATA:

Conventional Trackless System. Drilling: Two boom hydrojib jumbos, AR93 drifters, 14' feed. Drill Round: 35 holes, 1 3/4" diameter, 10 1/2 to 11' deep, and 1-6' buster

hole, V-cut. Explosives: 16# -1 l/4"x8", 75% primers, 32#-l 1/4" x 12" RXL, 60% in

lifters, 11# coalite 5Y, 1 1/4" x 12" in back holes, 175# AN/FO in remainder of round. Powder factor: 3. 5#/CY.

Blasting: Electrical, MS delays. Mucking: Wagner ST-5 Scooptrams. Guidance; Transit/Laser.

MDN STUDY SYSTEM DATA SHEET Ident. No. 11-3 9/1/72 MDN Sheet 1

C-55

MUCK DATA

Abrasiveness Pot. Vol. Change, Material N* A- Size (-) 0.056" : 0

ATTERBERC LIMITS. MATERIAL SIZE

Liquid Limit 15. 60 % Plastic Limit 14. 81 % Plasticity Index 0.79% Toughness Index 0. 26 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 1 % Moisture, 25° @ 0.2 % Moisture, 550 Angle Slide Steel Plate Bulk Density PCF

@ 1 % Moisture, 29° @ 0.0 % Moisture, 100

Spec. Gravity, Material Size HO.75": 2.65

(-) 0.056 IN.


Angle/Repose 10" Drop @ 1 % Moisture, 25° Angle Internal Friction @ 0.2 % Moisture, 46°

70 —" , - ^_ ̂ ^_-

wmmm _ i 1 r r '" n 60 DRY UN ?T WE IGHT. LOOSE 99 prf

^' —

MOISTURE rr() NTENT 1.1 % I^MM

—■

x 50 \ LARGES" r SIZE OBS ERVED 18"x18"y4" <9 in

{ .

^HHB mmm — i > 40 l m _ r "^

00 i— 1' """

g 30 mmm l l _ ——

o s ~._ — S 20 , _

fiKF - f6 ^ m —

10 e£. ^ USE '-l^ ?r« \ k

—

rs N £7 "■■

>• ST 0 __ m^^ .. 1 •*,

tT" •». w^ t« f/ <<? iC —

SHAt'E PA PA PA PA PA A A A A A A

«B»

"

T b 3 2 II i

H i/ '2" #4 #fi -*« #^f 1 V ■#.n ac; —

+ 6' STANDARD SCREENS: ASTM STD. SPEC. El 1-70


SUMMARY

Rock Class: Sedimentary: Shale and siltstone, minor sandstone and limestone

SjW ^Pr^' r6 t0 r^86 gra'ned- High Strength- RQD <Est- ) 90%. DbW: 152 PCF. Ground water: Dry. Hardness: Shore, 41-55.

System Class: Conventional trackless. 24- wide x 7-1/2-, rectangular. Two

HaXT/: . 3/4;;h0llS' V-CUt- PF3-5*/CY. Mucking: Scoopt-am Haulage: Scooptram and/or shuttle cars to conveyor. Support: Rock belts. 4' x 41 pattern. '

MDN STUDY


MDN Ident. No. 11-3

Sheet 2

C-56

■■ -—--—"——,■■ 1 ■mlfnitiiiriiriiiMWnirt iimmiimrmiiitani

ROCK DATA:

Lithology: Sedimentary, "shale", masswe tc thinly laminated, interbedded siltstone and shale, with minor sandstone and limestone layers. Grain size varies from fine to coarse, quartz c mtent from 24 to 33%.

Uniaxial Compressive Strength: Four maj jr beds: 22 K to 29 KPSI three minor beds: i? K to 17 KPSI. Weighted Average- 22 KPSI

ROD: (Estimated) 90%. Dry Unit Weight: 166 PCF. Ground Water: Dry. Hardness: Shore 41.0 to 55 parallel io bedding planes. 41 to 54perpendicular.

TUNNE ^ DATA: —— —

Size: x 8' wide x 8 1 ^2' high, rectangular. Grade: Level. Ventilation System: 20 KCFM exhaust from face, pressure to entry, 40 HP. Utility System: 2" water line (250 cfm compresscr on machine trailer). Water Inflow: None. Power System: Cable to trailer mounted transformer. Haulage: Muck by diesel shuttle car to conveyor, personnel and supplies by

diesel truck. Support System: 5/8" rock bolts, normally 6' longon4'x4' spacing, as required.

EXCAVATION DATA;

Machine: Atlas-Copco 4 head prototype. Weight: 180 LT. Two4'dia. heads are mounted on each side of center jn horizontal booms rotated about vertical pivots. Heads are rotated arouna boom centerlines by motors and reducers integral with the booms; booms and heads rotatef-om side to forward positions,

Cutters: 48 SandvikT. C., drag type, mounted on head peripheries. Leading cutters, 40mm wide, 8 per head; Finish cutters, 120mm wide, 4 per he?.d.

Rotation: Upper heads: 3 1/4 RPM. Lower: 1 5/8 RPM. Torque: Head rotation: 80 KW. Boom rotation: 100 LT per boom. Thrust: 488 LT produced by 4 hydraulic cylinders between advanced and front

units. Anchorage: Two top and two side cylinders, approximately 1, 000 Kf, Muck Collection: Flight conveyors move muck from sides to a central '.6"

flight conveyor, discharging on a 9 1/2' dia. star wheel. The whooi feeds a 25" belt conveyor, transfering muck to a Joy loader and shuttle cars.

Power System: 4160/600/120V, 60 Hz. Head rotation: 4-80 KW motors, hydraulics: 2-78 KW motors, 2300 psi.

Guidance: Transit/Laser.

M^,S^yDY SYSTEM DATA SHEET Ident. No. li-4 9/1/72 MDN Sheet l

C-57

-îT ■T--|MiMiinwMrTrffnniriirm

MUCK DATA

Abrasivenrss N. A.

Pot. Vol. Change, Material Size {-) 0.056" : 0

ATTERBERG LIMITS, MATERIAL SIZE (

Liquid Limit 15.80% Plastic Limit 15.60% Plasticity Index 0. 20 % Toughness Index 0.05%


Angle/Repose 1" Drop Apparent Cohesion PSF @ 0.9% Moisture, 28° @ 0. 2 % Moisture, 282 Angle Slide Steel Plate Bulk Density PCF @ 0.9% Moisture, 28° @ 0. 0 % Moisture, 100

Spec. Gravity, Material Size (-) 0.75" : 2.78

■ ) 0.056 IN.


Angle/Repcse 10" Drop (§ 0. 9 % Moisture, 29° Angle Internal Friction @ 0.2 % Moisture, 54°

ru r r r r r r r r r " ■"■^ Mi«a •■"^ mmmmm ~^

6C DRY UN [T WE IGl- IT. LOOSE 96 P ßJf. — MOL:TÜRE CONTENT 1.1 *

"""" ' ■MM wr-^ M^

t SO LARGEST SIZE OBS ERN ̂ EP 8" x 8" x 4" ~ (9 *^^*

. 40

o »- 5 30 u % Ui 8 tfl tt.3

u W, «r "^ ^ •^ at

10 ^ f

***• -

w > v o N sr K+J u ££. ^. 02 IF

SHAPE PA PA PA PA PA PA PA PA A A A

f t i l" 2 ii II 1/ '2" #4 #e ■#i =; #^ D #R T #ir V) WZ ̂ 1 i

+ 6" STANDARD SCREENS: ASTM STD. SPEC. El 1-70 —#200


Sedimentary: Shale and siltstone, minor sandstone and limestone.

SUMMARY Rock Class;

thin to massive, fine to coarse grained. High strength. RQD (Est. ) 90%. DUW: 166 PCF. Grovind water: Dry. Hardness: Shore 41-55.

System Class; TBM. Atlas-Copco. 18' wide x 8-1/2'rect. heading. Sandvik TC "drag" bits. 12/head, 4 heads. RPM 3 1/4 normal. Torque 80 KW/head, lOOLT/boom. 480LT thrust. Mucking: Flight conveyor - starwheel-belt- loader. Haulage: Shuttle car to conveyor. Support: Rock bolts at 4'.

MDN STUDY 9/1/72



C-58

tflllilMtlift«Miim'ni«itltMWtWt»tfif»rf!ili-|fttii' ill n ITIIIII I iilBlill

ROCK DATA;

Lithology: Sedimentary, "shale", massive to thinly laminated, interbedded siltstone and shale, with minor sandstone and limestone layers. Locally highly faulted and fractured. Grain size varifts from fine to coarse.

Uniaxial Compressive Strength: 22K PSI (weighted average). RQD: (Estimated) 65%. Dry Unit Weight: 168 PCF. Ground Water: None. Hardness; Shore 41 to 55 parallel to bedding planes, 41 to 54 perpendicular.

■ * TUNNEL DATA: — — ,

■

Size; IS'-l" diameter. Grade: (+) 10%. Ventilation System: 18K CFM, exhaust, 36" diameter pipe, 120 HP @ 7200'. Utility System: 2" water, 4" pump line from sump at 4200' approximate. Water Inflow: 5-10 gpm. Power System: 4160/480V. Haulage System Muck, 30" - "piggy back" conveyor supported by monorail

advances with TBM, feeds a 36" conveyor suspended from back of tunnel. Supply and Personnel: Diesel jeeps and trucks.

Support System; 6" x 8. 2# channels x 13. 5' at 2', secured by 6-5/8" x 6' ock bolts, lagging under channels.

EXCAVATION DATA;

Machine; Robbins ^81-122. Total weight: 260 tons. Cutters: 47 Robbins, steel disc, w/Esco rings, Gage: 3-12".

Center; 1-7 1/2" triple. Interior 43-12". Rotation: 4 1/2 RPM Torque: 1, 147 K#. Thrust: 769K#. Muck System; Buckets fixed to head, discharge on conveyors. Power System: Four - 480V, 200 HP motors drive head. Guidance: Laser

MDN STUDY SYSTEM DATA SHEET Went. No. 72-1 9/1/72 MDN Sheet 1

C-59

^■a^j:>.î..-».:i.âji^«»ûj.; „ui. i-.l..^^ ., ... .._...;.''..''

MTXKDATA

Aorasiveness N. A.

Pot. Vol. Change, Material Size (.)0. 056" : 0

Spec. Gravity, Material Size (-)O. 75" : 2. 72

ATTERBERG UMITS, MATERIAL SIZE (-) 0. 056 IN.

Liquid Limit 18. 00 % Plasticity Index 0. 90 %

Angle/Repose 1" Drop @ i.3 % Moisture, 36° Angle Slide Steel Plate @ 1.3 % Moisture, ^0°

70

60



Apparent Cohesion PSF @ 1.0 %Moiö<-uru, 170 Bulk Density PCF @ 0. 0 % Moisture, 100



UJ

>- CD

I- z tu o cs a.

50

40

30 -

20

10

0

SHAPE

-*•—i r r 1 1 1 "" r —

DRY UNIT WE IGHT, LOOSE 86 PCF

MOISTURE CONTFfJT 1.5 t

x7"x1%"

■"*" ■""■

LARG ESJ ' SUE oes ERVED12' ~" ——

3/0 .j k«—

SCREENED BEFORE DRYING 1 1 1 1—VJ- 1 I 7 ^S

"V Ml \ L_

lV 7 23 "»,

\ \ V %.t zo

\ r -i—i—i—i—i—1—1

DRY SCREENED (ASTMaSS) AFTER WASHING (ASTM CII7

i i i i i i i

—

-j-

9 / V — 1

V / T) 3*

S.9 £ 4.0 "^ N^ /./ /.s A* ^ ^ _

PE p P P P p P-A P-A A

f 6 ; I" 2 ii I H

l> it #4 > #t i #« 3 #3 0 #s T #lf >n K ̂ n i + 6'

STANDARD SCREENS: ASTM STD. SPEC. £11-70 —#200 MUCK; PCT. BY WT. AND SHAPE BETWEEN SCREENS

Sedimentary: "Shale" siltstone and shale interbedded, minor SUMMARY Rock Class; sandstone and limestone layers. Massive to thinly laminated, fine to coarse grained. High strength. RQD (Est. ) 65%. DUW: 168 PCF. Ground water: None. Hardness: 41 - 55 suore.

System Class; TBM, Robbins 181-122, ^'l" dia. 47 Robbins disc cutters. 4-1/2 RPM, 1,476 K FT # Torque, 769 K# Thrust. Mucking: Buckets to belt. Haulage: Conveyor.

MDN STUDY 9/1/72



C-60

--'^'•'•""^ mmm

Ml

ROCK DATA:

Lithology: Sedimentary, conglomerate ("breccia") 1/4"-10" rounded to angular boulders, cobbles, pebbles in a predominantly limestone matrix, w/chert, schist diabase fragments, well to moderately consolidated.

Uniaxial Compressive Strength: NA. RQD: (Estimated) 65%. Dry Unit Weight: 171 PCF Ground Water: Normally dry. Hardness: NA.

TUNNEL DATA:

Size: 9' x 10' high. Giade: Level. Ventilation System: 10 KCFM, pressure, 24" diameter pipe, 50 HP @ 1000',

from coil heat exchanger. Utility System: 6" air line, 2" water line. Water Inflow: None. Power System: 4160/480/120V. Haulage System: Muck, supplies, p*. <nnel by railcars, 4 and 6 ton battery

locomotives 44 CF rocker dump ra^s, 18" gage, 30# rail. Support System: 5/8" x 6" rock bolts, 3', 4 1/2' or 61 roof plates, 21 bolts

and 7 plates per 5' span.

EXCAVATION DATA:

Conventional Rail System. Drilling: 3 boom hydraulic jumbo, 7' chain feeds, and 3" bore drifters, 7/8"

hex steel. Drill Round: 42 to 50-1 3/8" diameter holes including 4 hole V cut and 4 hole

baby V or 5 hole burn cut, average advance 5 1/2'. Explosives; 150#) 25# Amogcl, #4-40% primers and cushion, 125# Carbamite

PB. Powder Factor, 8.2#/CY. Blasting: #6 caps, 8' fuse, dt'onated electrically, timed by order of connection

to igniter cord. Mucking System: Eimco Model 21 Loader. Guidance: Laser

MDN STUDY SYSTFM DATA SHEET Ident. No. MSU-1 9/1/72 MDN Sheet 1

C-61

MUCKDATA

Abxasiveness N. A.

Pot, Vol. Change, Material Size(-) 0. 056" : 0

Spec. Gravity, Material Size (-) 0.75" : 2.74


Liquid Limit 13. 80 % Plastic Limit 12. 77 % Plasticity Index 1.03% Toughness Index 0.32%

M/.TERIAL SIZE (-) 2.0 IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ 0.4 % Moisture, 35° @ 0.3 % Moisture, 410 Angle Slide Steel Plate Bulk Density PCF @ 0.4 % Moisture, 27° @ 0.0 % Moisture, HI

70

60


Angle/Repose 10" Drop t 0,4 % Moisture, 29° Angle Internal Friction @ 0.3 % Moisture, 46°

1 50 (9

>- ffl I- Z tu o an hi a.

40

30

20

10

0

SHAPE

1 1 1 1 ! DRY UNI T WE IGHT. LOOSE 104 PCF


l-ARG E51 " SIZI l 0P$ iRVED 6"x 10" x 3"

JfO

/ s «^

,u s,, / r s> /lo

/ ^ /

\

/ \ / +.0 ro" —•

i.O J.O 1.0 ^b ipl-, 2.0

A A A A A A A A A A

I' + 6"

1/2" #4 #8 -#16 #30 #50 #100 -^200 ^ -#200 STANDARD SCREENS: ASTM STD. SPEC. Ell-70


SUMMARY Rock Class: Sedimentary: Conglomerate, "breccia," 1/4" to 10", limestone, chert, schist, diabase fragments, well to moderately consolidated. Strength, NA RQD (Est. ) 65%. DUW: 171 PCF, Ground water: Dry. Hardness, NA.

System Class: Conventional Rail, 9' wide x 10', three boom jumbo, 42 to 00- 1-3/8'holes, burn cut. PF 8. 2 #/CY. Mucking: Eimco 21. Haulage: Rail. Support: Rock bolts and plates, continuous.

MDN STUDY 9/1/72


Hent. No. MSU-1 Sheet 2

C-62

1 1 1 ••iirr-miiiiiiifiiiii(i,iii,iiiiiiiiiBilirii-riii i

ROCK DATA:

Lithology: Sedimentary, conglomerate, ("breccia") l/4"-4" boulders, cobbles, and pebbles, rounded to angular in a predominantly limestone matrix, w/chert, schist and diabase fragments, well consolidated.

Uniaxial Compressive Strength: NA. RQD: (Estimated) 80%. Dry Unit Weight: 171 PCF Ground Water: None Hardness: NA.

TUNNEL DATA:

Size: 9' wide x 10' high, arched. Grade: Level. Ventilation System: 9 KCFM, pressure, 24" diameter pipe, 50 HP ©1300'

from coil heat exchanger. Utility System: 6" air line, 2" w iter line. Water Inflow: None. Power System: 4160/480/120V. Haulage System: Muck, supplies, personnel by railcard, 4 and 6 ton battery

locomotivea, 44 cu. ft. rocker dump cars, 18" gage, 30# rail. Support System: 5/8" x 6' rock bolts, 3', 4 1/2' or 6' roof plates, 21 bolts

end 7 plates per 5' span.

EXCAVATION DATA:

Conventional Rail System. Drilling: 2 boom jumbo, 6' chain feeds and 3" bore drifters. Drill Round: 50-1 3/8" diameter holes, including 4 hole V cut and 4 hole

baby V, 5 1/2' average advance. Explosives: 122# average, 40% Amogel #4 or ^0% primers and carbamite.

Powder Factor, 6.7#/CY. Blasting: #6 caps, 81 fuse, detonated electrically, timed by order of connec

tion to igniter cord. Mucking System: Eimco Model 21 loader. Guidance; Laser.

MDN STUDY 9/1/72


Went. No. MSU-2 Sheet 1

C-63

',-■• ■ 1l^f«^[^^.|y^^.Miaiaii.^^^^^ -ifiimmlf "»-•'•'" "--'■- -.^.t.~.^.^^^^-^--~-1iB»»^^^>;"'''»^^

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size NA

ATTERBERG LIMITS. MATERIAL SIZE

Liquid Limit NA % Plastic Limit NA % Plasticity Index NA % Toughness Index NA %

MATERIAL SIZE IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ % Moisture, NA @ % Moisture, NA Angle Slide Steel Plate Bulk Density PCF @ % Moisture, NA <i % Moisture, NA


IN.


Angle/Repose 10" Drop @ % Moisture, NA Angle Internal Friction @ % Moisture; NA

70

60 DRY UNIT WEIGHT. LOOSE 10.7 Prp

MOISTUkg CONTENT !.<?%

+ 6 1/2" #4 #8 #16 #30 #'30 #100 #i

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 MUCK: PCT. BY W. AND SHAPE BETWEEN SCREENS

-#200

SUMMARY

ROCK Class; Sedimentary: Conglomerate, "breccia," 1/4" - 4" limestone, chert schist, diabase fragments, well consolidated. Strength: NA. RQD (Est. ) 80%. DUW: 171 PCF. Ground water: None. Hardness: NA.

System Class: Conventional Rail. 9' wide x 10'. Two machine jumbo, 50 holes, V cut. PF6. 7#/CY. Mucking: Eimco 21. Haulage: Rail. Support: Roof plates and rock bolts, continuous.

MUN STUDY 9/1/72


Ident. No. MSU-2 Sheet 2

C-64

--- ■ttüttili „—«

ämm

ROCK DATA;

Lithology: Sedimentary, limestone, light to medium gray, fine grained, some chert nodules, traces to occasional clay partings.

Uniaxial Compressive Strength: 19 KPSI ROD: (Estimated) 100 percent. Dry Unit Weight: 160 PCF.

Ground Water: Table above tunnel, occasional seepage from minor fractures and faults.

Hardness: Shore, 46. ■

TUNNEL DATA;

Size: IS'-g • diameter. Grade (+) 1/4 percent. Ventilation System: 21 K CFM exhaust, 28" pipe. Utility System: 6" air line, 2" water line, 6" pump line. Water Inflow: 40 to 120 gpm. Power System: 4160/480V. Haulage System: Muck, supplies, personnel, by rail cars. Support System: None.

■

EXCAVATION DATA:

Machine: Alkirk Hardrock. Weight 400 tons. Cutters: 28-Lawrence Mfg. Company, Tungsten Carbide Button, roller, disc, and tricone. Gage: 5-15" TCB roller. Center: 1-24" TCB tricone. Interior: 11-15" TCB disc, 11-15" TCB roller.

Rotation: Center cutter-30 RPM, Head-9 RPM. Torque: Head 206 K ft. # Thrust: 614 K# operating Muck Collection: Buckets from face discharging on 24" belt conveyor. Power System: Electro-Hydraulic. Total HP: 910. Guidance System: Laser.

MDN STUDY 9/1/72


Ident. No. LAW-2 Sheet

C-65

^^ .<',-...*... ^ .„ ... ■^^.„-i-..,„:

——a—.

l

I I I ß ii

L

L

D 0 L

i.

i.

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (-) 0.065": 0

Spec. Gravity, Material Size(-)0.75" . 2.83


Liquid Limit 12.5 % Plasticity Index 0. 2



Shrinkage Limit 9.6 Flow Index 4.0 %

Angle/Repose 1" Drop Apparent Cohesion PSF @ 5,4 % Moisture, 39° @ % Moisture, NA Angle Slide Steel Plate Bulk Density PCF @ 5.4 fc Moisture, 31° @ % Moisture, NA

70

Angle/Repose 10" Drop @ 5.4 % Moisture. 38° Angle Internal Friction © 7 % Moisture, 30°

o üj

>■

tu u oc til a.

60

50

40

30

20

10

0

SHAPE

» — 1 1 l 1 r r r r r 1 1 — — -"— —

^_ DRY UNIT WE IfihT. LOOSE 92 prF ■'

mmm

M0|§TUaf CONTENT 7.2 % — ■"^~ ■"■^ 1 " ' „_

lnAR(? ES' Lü m ; oes ERVED3"x2"xV4" ^^■-

"~ ■"" ■

" ■ ■ ■

—

iio ~" Mm

— J K s,.. 1 '

T rs e \ ■" ' 'u

A \ ——

/l w ^ K ~ w" 12- ^-fiö r - St. «w & ^

IMMM

PAI PI PI PI I i -i

All A 1

t 6 3 2 " i II

i/ 2" # #3( ) \ *}( > #lf 10 ■ iFoty n —^ + 6'

STANDARD SCREENS: ASTM ST0. SPEC. El 1-70

MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS -■#200

Sedimentary: Limestone, fine grained, some chert nodules,

SUMMARY Rock Clais:

occasional clay partings. High strength. RQD (Est. ) 100%. DUW: 16C PCF. Ground water: Minor. Hardness: Shore 46.

System Class: TBM, Alkirk Hardrock, 13' 8" dia. 28 Lawrence TCB roller, disc, tricone cutters. RPM: Center 30, hjad 9. Torque: 206 K ft #. Thrust: 614 K #. Mucking: Buckets to belt. Haulage: Rail. Support: None.

MDN STUDY 9/1/72

TYSTEM DATA SHEET MDN

Ident. No. LAW-2 Sheet 2

C-66

mzmmam

ROCK DATA;

Lithology: Sedimentary, limestotie, light to medium gray, fine grained, some chert nodules, traces to occasional clay partings.

Uniaxial Compressive Strength: 19 KPSI. RQD: (Estimated) 100 percent. Dry Unit Weight: 160 PCF. Ground Water: Table above tunnel, occasional seepage from minor fractures

and faults. Hardness: Shore, 46. "":

TUNNEL DATA:

: ■.

Size: IS'-S" diameter. Grade (+) 1/4 percent. Ventilation System: 20 K CFM exhaust, 28" pipe. Utility System: 6" air line, 2" water line, 6" pump line. Water Inflow: 40 to 120 gpm. Power System: 4160/480V. Haulage System: Muck, supplies, personnel, by rail cars. Support System: None.

'■

EXCAVATION DATA:

Machine: Alkirk Hardrock. Weight 400 tons. Cutters: 28-lAwrence Mfg Company, Tungsten Carbide Button, roller, disc, and tricone. Gage- 5-15" TCB roller. Center: 1-24" TCB tricone. Interior: 11-15" TCB disc. 11-15" TCB roller.

Rotation: Center cutter-30 RPM, Head-9 RPM. Torque: 206 K ft. #. Thrust: 614 K# operating. Muck Collection: Buckets from face, discharging on 24" belt convsyor Power System: Electro-Hydraulic. Total HP: 910. Guidance System: Laser.

MDN STUDY 9/1/72



C-67

'iMiffaiiifWi^r ^■iirttiii"Jüir';tfifiii'hfrifiir I

—— ■Mt

Abrasiveness N. A.

MUCK DATA

Pot. Vol. Change, Material Spec. Gravity, Material Si« (.)0.065": 0 Size(-) 0.75": 2.80

ATTERBERG LIMITS, MATERIAL SIZE (-)O. 185 IN.


MATERIAL SIZS (-) 2.0 IN.


Angle/Repose 1" Drop Apparent Cohesion PSF @ 6. 1% Moisture, 41° @ % Moisture. NA Angle Slide Steel Plate Bulk Density PCF @ 8.4% Moisture. 380 @ % Moisture, NA

Angle/Repose 10" Drop @ 6, 1 % Moisture, 40° Angle Internal Friction @ 7 % Moisture. 32°

rv

L E 1 r r r r r r r r 1 ! n- — — —

60 IDRY UN IT WE ISHT* LOOSE Q^ prp ' " ~— " '' -—

IM15TURE CONTENT « « % ■""" " ■

WMi MM ■^ —

x 50 LARG EST 5IZ 5 0B5 ERVED 3"x2!4"x%" "" ——

<9 Hi — ~"

—— ■~~ i^m —

„ 40 ~~

" _ —~

m '~ 1 '" ^^^ ——. 1 -""

g 30 "' ——■ ^ —^

u _ ^ i e "" " ^"~ "■^ ^^

^ 20 \

S, -

—-

t b "" — ■"■" •MM --

10 ^,__ —^ 1 Sv —

d T \ 5 ^

"" " MM* 7 BT

0 ^ -T i ** rr £ «/ sr —

SHAPE PA I PA I PI PA I I i i i I T 6

+6" 3 2" 1" 1/2" #4 #8 #16 #30 #50 #10

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 MUCK: PCT. BY WT. AND SHAPE BETWFFN croppMS

0 #200 f -#200

SUMMARY Rock Class: S edi m< mtc irv : ] _iin les ton p fin e (T rai nor ■ < /.U« ■M4. __J..I _

occasional clay partings. High strength. RQD (Est.) 100%. DUW: 160 PCF Ground water: Minor. Hardness: Shore 46.

System Class: TBM, Alkirk Hardrock, 13' 8-dia. 28 Lawrence TCB roller disc, tncone cutters. RPM: Center 30, head 9. Torque: 206 K ft # Thrust: 614 K #. Mucking: Buckets to belt. Haulage: Rail. Support: None

MDN STUDY 9/1/72


Ident. No. LAW-3 Sh. et 2

C-68

- „._.. ._ _ .: .

ROCK DATA;

Uthology: Sedimentary, limestone, light to medium gray, fine grained, some chert nodules, traces to occasional clay partings.

Umaxial Compressive Strength: 19 KPSI. RQD: (Estimated) 100 percent. Dry Unit Weight: 160 PCF. Ground Water: Table above tunnel, occaeional seepage from minor

fractures and faults. Hardness: Shore, 46.

TUNNEL DATA-

Size: 13'-8" diameter. Grade (+) 1/4 percent. Ventilation System: 21 K CFM exhaust, 28" pipe Utilit/ System: 6" air line, 2" water line, 6" pmiip line. Water Inflow: 40 to 120 gpm. Power System: 4160/480V. Haulage System: Muck, supplies, personnel, by rail cars. Support System: None.

EXCAVATION DATA;

Machine: Alkirk Hardrock. Weight 400 tons. Cutters: 28-Lawrence Mfg. Company, Tungsten Carbide Button, roller, disc, and tricone

^Bdis;15"^^^ Center: ^"^Btr'icone. &, U-15" TCBdisc, 11-15" TCB roller. Rotation: Center cutter-30 RPM, Head-9 RPM. Torque: Head 206 K ft, #. Thrust: 540 K ft. #.

Muck Collection: Buckets from face discharging on 24" belt conveyor. Power System: Electro-Hydraulic. Total HP: 910. Guidance System: Laser.

. ■

MDN STUDY 9/1/72



C-69

^^«aMaâualMâiBliijyi^

I i i i D fl

0

«

MUCKDATA

Abrasj.veness N, A.



Liquid Limit 20. 2 % Plasticity Index 0. 2


%

Angle/Repose 1" Drop @ 8.9 % Moisture,42° Angle Slide Steel Plate @ 8.9 % Moisture, 37°

Plastic Limit 20.0 % Toughness Index 0.05 %





ru

U r 1 1 L" 1 r 1 1 r T1' — — — n GO DRY UNIT WE^ |(JHT, LOQSc «0 PCF

■•■ * ■"—

«H _ MOISTURE CON|Tf;MT 7,0 ..i ) 3%"x2J4"xÄ,

mmm mmm

!? so _ LARGHS r SIZ E 0ß§ ERVEJ <^mm ——

• lu i ,

mmmm

>- 40 11, ——. ""'" ^m

ID "■■"" "■^ wmm mam

5 30 mtmm <mmmm

——

u MM« w^ —

20 — .. , _ ■~r 4

M

—

.„ / *L ■^■ m *-* ' —,

10 mmtm ^-- , -V f \ V

"'^~'~ ' ' " / riF

i , -^ I N 2. a ■•■ S. ""■

■■■*■

> /- —

0 MM. [^ **■ SO Ts- ■* rr ^ £ ~

SHAPE PI PI PI PI PI PI PA PA A T 6 3 2 i i«

1/ '2" #4 #« *» ! *«/ t *tr k ■#,n rr nr i + 6"

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 MUCK: PCT. BY WT. AND SHAPE BETWEEN SCRFFN«;

-•#200

SUMMARY

Rock Class: Sedimentary: Limestone, fine grained, some chert ncdules occasxo^l clay partings. High strength. RQD (Est.) 100%. D^: 160PCF Ground water: Minor. Hardness: Shore 46. ««-f-*.

System Class: TBM. Alkirk hardrock. 13- 8" dia. 28 Lawrence TCB roller

Thrust sr^M VRPM: n^r" 30' ^ '' Tor^ 206 K ft *' Thrust. 540 K#. Mucking: Buckets to belt. Haulage: Rail. Support: None.

MDN STUDY 9/1/72



C-70

it r»,!.«! ü..« Iilllliilii1l[i'iiii1iiiiililllltiliiillltiyir,'fltliiiitii

ROCK DATA:

Lithology: Sedimentary, limestone, gray, fine grained, horizontal joint spacing 6" to 1'.

Uiriaxial Compressive Strength: 36 KPSI. RQD: (Estimated) 85% Dry Unit Weight: 166 PCF. Ground Water: Minor, in fault zones. Hardness: NA

■

TUNNEL DATA:

Size: ll'-Z" round. Grade: (+) . 2%. Ventilation System: 4 KCFM, exhaust, IS'1 pipe, 25 HP. Utility System: 6" air line, 1" water line, 6" pump line. Water Inflow: 5-10 gpm. Power System: 4680/440V. Haulage System: Muck, supplies, personnel, rail cars, 5 ton motors, track

gage 24". Support System: 4" H rings sets in fault zones, occasional pinned steel

lagging. ■

EXCAVATION DATA;

Machine: Jarva Mark 11-1100. Total weight: 65 tons. Cutters: 27 Reed steel triple disc and cone. Gage: 4-CK5 steel disc.

Center: 1-CK1 steel cone. Interior: 22-QK3 steel disc. Rotation: Cutterhead RPM 9. 3. Torque: Maximum 170 K ft#. Thrust: 1. 104 K# maximum, 596 K ^-operating. Anchor Pressure: 1, 650 K#. Muck Collection: Bucket from face to 18" belt to 24" belt on gantry. Power System: 440 volt, 6 - 50 HP motors drive head and 1 -40 HP motor for

hydraulic system. Guidance: Laser.

.

MDN STUDY 9/1/72


:-. ^%f .- :■■:■ .':m'fM'f

T Ident. No. MIL-1 Sheet 1

C-71

MUCK DATA

Abrasiveness N. A.


ATTERBERG LIMITS MATERIAL SIZE (

Liquid Limit 16.90% Plastic Limit 15.69% Plasticity Index 1.21% Toughness Index 0. 24 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 2.5 % Moisture, 36° @ 4,1 % Moisture, 95 Angle Slide Steel Plate Bulk Density PCF @ 2.5 % Moisture, 30° @ 0.0 % Moisture, 86

Spec. Gravity, Material Size (-)0. 75": 2.89

-)0.056 IN.


Angle/Repose 10" Drop @ 2.5 % Moisture, 35° Angl', Internal Friction @ 3.5 % Moisture, 35°

fU r n r 1 1 r r 1 r r wmm ■"■ —— —

60 DRY urt [T WE ISHT. LOOSE 89 PCF

""■


x1"xl4"

■'■", ^^ MM

fe no LARG ISL r SI?I : C Jli ER\ ffipy "

9 u ""'

"^^ MM

i v 40

— r-

m ■"""

2 30 ._ ——i

——

o J. 3*

^ e ^^

20 t ——

"L N IMM

10 / JM

\ MM — ^■H

-J f ^ sr iL ̂ ^^ u »"

0 âmm . •/ I sfc

- ST SI ^ ■"■■'

SHAPE PE PI PI PI PA s S s

MUCK:

1" 1/2" #4 #8 -#16 #30 #50 #IC

TANDARD SCREENS: ASTM STD. SPEC. El 1-70 PCT. BY WT. AND SHAPE BETWEEN SCREENS

»0 #2C of #200

SUMMARY Rock Class: s^H,-m»r itai •v: L ime !St( )ne . f ne ar ain AH hr »ri« rrfc-n f-ll iî «4- <■_»»:__

6 to 1'. Strength: Very high. RQD (Est.) 85%. DUW: 166 PCF. Ground water: Minor. Hardness: NA.

^"o01^^ TBM' Jf^^^H-lOO. ll'2"dia. 27 Reed triple disc cutters/cone. RPM: 9.3. Torque: 170 K ft #. Thrust, 596 K #. Mucking: Bucket to belt. Haulage: Rail. Support: H ring sets in fault zones.

MDN STUDY 9/1/72


Ident. No. MIL-1 Sheet 2

C-72

Mia^nirriir'fiiriiniHtwtillWMii^ tnüyiiiiiiiliMMriiiW-mfri i i * mm

...

ROCK DATA;

Lithology: Sedimentary, limestone, gray, fine grained, horizontal joint spacing 6'" to 1'.

Uniaxial Compressive Strength: 36 KPSI. RQD: (Estimated) 85% Dry Unit Weight: 166 PCF. Ground Water: Minor, in fault zones. Hardness: NA

TUNNEL n/\TA;

Size: 11'2" round, Grade: (+) . 2%. Ventilation System: 4KCFM, exhauat, 18" pipe, 25 HP, Utility System: 6" air line, 1" water line, 6" pump line. Water Inflow: 5-10 gpm. Power System: 4680/440V. Haulage System: Muck, supplies, personnel, rail cars, 5 ton motors,

track gage 24". Support System: 4" H rings sets in fault zones, occasional pinned steel flagging.

■■■■■

■

_ EXCAVATION DATA-

Machine: Jarva U-H00, Total weight: 65 tons. Cutters: 27 Reed steel triple disc and cone. Gage: 4-QK5 steel disc.

Center: 1-QK1 steel cone. Interior: 22-QK3 steel disc. Rotation: Cutterhead RPM 9. 3. Torque: Maximum 170 K ft. #. Thrust: 1, 104 K# maximum, 596 K#-operating Anchor Pressure: 1, 650 K# Muck Ccllection: Bucket from face to 18" belt to 24" belt on ganti y. Power System: 440 volt, 6-50 HP motors drive head and 1-40 HP motor

for hydraulic syitem. Guidance: Laser.

MDN STUDY 9/1/72

■ . 1 ■ 1

n SYSTEM DATA SHEET

MDN Ident. No. MIL-2

Sheet 1 it

C-73

,..,â.j.räjM....,.,...»j.-.ai..u......i.....M»,..

mmm

MUCK DATA

Abrasiveness N. A.


Spec. Gravity, Material Size HO.TS"; 2.93


Liquid Limit 20.10% Plastic Limit 16.68 % Plasticity Index 3.42% Toughness Index 0.56%


Angle/Repose 1" Drop Apparent Cohesion PSF % 5.8 % Moisture, 32° @ 5. 0 % Moisture, 110 Angle Slide Steel Plate Bulk Density PCF @ 5.8 % Moisture, 30° @ 0.0 % Moisture, 90

70

60

i 90 8 i



>- ID

111 Ü

£ 0,

40

30

20

10

0

SHAPE

r 1 1 r r r r ^^^ "~" ""^ ■p-^ HMH ^^

DP Y y.i T we IGHT. LOOSE 89 PCF

USTURE CONTENT 6.1 t x 2" x %"

"T 1

'" ■' ^^^

uMês, f su ; C 85 ERVED 3" MWp

"" —

V 3? ^

j 7 \ L

/. \ OS ,

/ SF v ̂

- r s: > ST — 51

c z Tr ^ 1 | 1 PE PI PI PI PR S s s

1 e H •3 I" 2 ■i H \j '2" #^ r #6 #K 3 #3 0 #5. 3 A )0 i5 sn i

+ 6'

SUMMARY Rock Class:

STANDARD SCREENS; ASTM STD. SPEC. El 1-70


-•#200

Sedimentary: Limestone, fine grained, horizontal joint spacing 6"tol,. Strength: Very high. RQD (Est.) 85%. DUW: 166 PCF. Ground water: Minor. Hardness: NA.

System Class: TBM, Jarva Mark 11-100, 11-2" dia. 27 Reed triple disc cutters. RPM: 9.3. Torque: 170 K ft #. Thrust: 596 K #. Mucking: Bucket to belt. Haulage: Rail. Support: H ring sets in fault zones.

MDN STUDY 9/1/72



C-74

—■■:--' ÜÜMHÜiMB __________

ROCK DATA:

Lithology: Sedimentary, limestone, grey, fine grained, horizontal joint spacing 4"-8".

Uniaxial Compressive Strength: 24K PSI. ROD: (Estimated) 81%. Dry Unit Weight: 164 PCF Ground Water: Dry. Hardness: NA.

TUNNEL DATA:

■ ■ .;

Size: 11' 2" diameter. Grade: (+) 0.2%. Ventilation System: 4 KCFM, exhaust, 25 HP (through bore hole). Utility System: 6" air line, 1" water line, 6" pump line. Water Inflow: Minor. Power System: 4680/440V. Haulage System: Muck, supplies, personnel by railcars, 5 ton locomotive,

24" gage. Support System: None.

% ■

EXCAVATION DATA:

Machine: Jarva, 11-1100, total weight 65 tons. Cutters: 27 Reed steel disc: 4 gage QK5, 22 interior 2K3,1 center QK1. Rotation: 9. 3 RPM. Torque: 119K ft. lbs. Thrust: 639K# Muck Collection System: Buckets from face, belt to rear. Power System: 6-50 HP motors drivehead, 1-40 HP motor for hydraulic

system. Guidance: Laser.

MDN STUDY 9/1/72

SYSTEM DATA SHLLT MDN


C-75

lliiWiterriiilrtWltllliiil'f^^ ^^. ...Si. WÂ.^.^t^M» MwA-iittBimm

iHIMHBJHnHiHCXHHHyHHHHHHHRHMHMHHHH ■ ■■■:.■■[■■. ■ r'

I I I I I

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size W 0.056" : 0

Spec. Gravity, Material Size (-)0,75" : 2.78

ATTERBERG LIMITS, MATERIAL SIZE (.) 0.056 IN.

Liquid Limit 15. 20 % Plastic Limit 14. 40 % Plasticity Index 0.80 % Toughness Index 0.22 %

MATERIAL SIZE(-) 2. 0 IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ 2.5 % Moisture, 36° @ 2.3 % Moisture, 60 Angle Slide Steel Plate Bulk Density PCF @ 2.5 % Moisture, 32° @ 0.0 % Moisture, 95


Angle/Repose 10" Drop @ 2.5 % Moisture, 32° Angle Internal Friction @ 2.3 % Moisture. 36°

rv 1 1 E 1 1 1 1 1 r r r ■" — — —

60 DRY Uf^ IT We IGHT. LOOSE 79 PCF ——",■•

' ■Mn

M0ISTUR?: CONTENT 5.1 *

KlV)! V4'

■~" ^^ '■— MM

i SO LAEfe EST UU F ^ SM £R> rED4" — ~~ 1 1 ——

o Ui 1 ■'■■ ^"^ —•

s „ 40

1 -

a »7 —

2 30 ^ —

——

u 1 £ ?0

tt.4 / \ "

1 ^ — t \ m ""

^^""

10 _v i

\ — > n»

/ \ / ""

o r #.5 T7 — iL It A« ^ ^^"—

SHAPE PE PI PI PI PA s 1 s s

f 6 3 If i t" i II 1/ '2" #< #€ #M > #s 1 #s< 1 #lf in ^ n I +6"

STANDARD SCREENS: ASTM SFD. SPEC E11-70 MUCK; POT. BY WT. AND SHAPE BETWEEN SCREENS

-#200

SUMMARY

Rock Class; Sedimentary; Limestone, finegrained, horizontal jointing 4"-8". High strength. RQD; 81%. DUW; 164 PCF. Ground water; Dry. Hardness: NA.

System Class; TBM, Jarva 11-1100, 11'2" dia. 27 Reed disc cutters. 9. 3 RPM. 119 K ft Torque. 639 K # Thrust. Mucking; Buckets to belt. Haulage: Rail. Support: None.

MDN STUDY 9/1/72



C-76

r ■ ■ ■ f r ' TT•■ mtnin', nn-^" " "-"«J-•i'^-a»'^-'ifirMwittllMliÜi inn [f If "IIMBili

ROCK DATA: ■

Lithology: Sedimentary, limestone, light grey, fine grained. Uniaxial Compressive Strength: 26K PSI.

■<, RQD: 100%. Dry Unit Weight: 168 PCF

r Ground Water: Dry. Hardness: NA.

tUNNSL DATA:

Size: 10' 4" diameter. Grade: (+) 0. 2%. , Ventilation: 18 KCFM, exhaust, 30" diameter pipe, 90 HP ©1980'.

Utility System: 3" water line. Water. Inflow: 300/400 gpm. Power System: 7200/480V. Haulage System: Muck, supplies, personnel by railcars, 5 ton locomotive,

4 CY cars, 24" gage, 54# rail. Support System: None.

EXCAVATION DATA: ——————

Machine: Robbins 105-144. Total weight: 75 tons. Cutters: 26 Robbins, 12" and 11" discs. 2 Gage and 21 interior, 12" diameter,

3 center, 11" diameter. Rotation: 6 RPM. Torque: 280K ft. lb. Thrust: 230K lb. Muck Collection System: Buckets from face, belt to rear. Power System: 4-100 HP motors drivehead, 50 HP for hydraulic systim. Guidance: Laser.

MDN STUDY SYSTEM DATA SHEET Ident. No. EVG-1 9/1/72 MDN Sheet 1

C-77

MlWinMgl'iMtr'-"'-''"---"^-"!! rninVTii>T#tWM^»^^^-^-'^-r

['

^.. ,.._;,;.■.-^. ■...-:-..,:•-

I I I I I e

o D L 0 L

I

fi

MUCKDATA

Abrasiveness N. A.


Spec. Gravity, Material Size (-) 0.7S". 2.81


Liquid Limit 15. 10% Plastic Limit 13.69% Plasticity Index 1.41% Toughness Index 0.47 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 3.1 % Moisture, 37° @ 3.0 % Moisture 70 Angle Slide Steel Plate Bulk Density PCF @ 3.1 % Moisture, 31° @ 0. 0 % Moisture i04

70


Angle/Repose 10" Drop @ 3.1 % Moisture, 31° Angle Internal Friction @ 3.0 % Moisture. 42°

in

>■ CD

a.

60

50

40

30

20

10

0

SHAPE

—

| WE

Z r r r r ~^ — — — **m —

DRY UNIT ist IT. LOGS: 94 PCF "

MOISTURE CONTF NT 3.8 % ' " ' ' . ~— — mm

LARG E5' r SIZE c es ERVED S'xV'x 3/4" m*m

"" " ■^ '"■■■ mmm

^™"~

~ 1

^t Si "" ^^m

1 ?^ 2/3 k

~ f

\ ^~ ■ ■HM^

J > V ~ t ^

r y Tr ^ u t? — ?5 S^ 2.Z ^ A '

P P p p P PA A A A

f 6 •3 " 2 " ii \i '2" #^ \ #8 ^M 5 #3( D #■51 3 *\(. 10 iC sn

+6" STANDARD SCREENS: ASTM STD. SPEC. El 1-70

MUCK: PCT. BY WT. AND SHA.->E BETWEEN SCREENS

-#200

SUMMARY Rock Class; Sedimentary: Limestone fine grained. High strength. RQD 100%. DUW: 168 PCF. Ground water: Dry. Hardness, NA.

System Class: TBM. Robbins. 105-144. 10- 4" dia. 26 Robbins disc cutters. RPM: 6. 280 K ft # torque, 230 K # thrust. Mucking: Buckets tc belt Haulage: Rail. Support: None.

MDN STUDY 9/1/72


Ident. No. EVG-1 Sheet 2

C-78

„^_ - -: -^"-■"'—■---"- -"■ -

ROCK DATA:

Lithology: Sedimentary, limestone, light grey, fine grained. Uniaxial Compressive Strength: NA. RQD: 100 Dry Unit Weight: NA. Ground Water: Dry. Hardness: NA.

TUNNEL DATA:

Size: 10' 4" diameter. G^-ade: (+)0.2%. Ventilation System: 18 KCFM, exhaust, 30" diameter pipe, 90 HP. Utility System: 3" water line. Water Inflow: 300/400 gpm. Power System: 7200/480V. Haulage System: Muck, supplies, personnel by railcars, 5 ton locomotive,

4 CY cars, 24" gage, 54# rail. Support System: None.

EXCAVATION DATA:

Machine. Robbins 105-144. Total weight: 75 tons. Cutters: 26 Robbins 12" and 11" discs, 2 gage and 21 interior-12" diameter

3 center-11" diameter. Rotation: 6 RPM. Torque: 246K ft. I'j. Thrust: 267.^ lb. Muck Collecion Syttern: Buckets from face, btlt to rear. Power System: 4-1C0 HP motors drivehead, 50 HP for hydraulic system. Guidance: Laser.

MDN STUDY 9/1/72



C-79

-"""-*" n irnirri i rr SSSMMUMlMIHaH

I I I 0 0 0 0 0 0

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size : NA

ATTERBERG LIMITS. MATERIAL SIZE Liquid Limit NA % pla8tic Limit NA %

Plastx^ty Ixxdex NA % Toughness Index NA %

MATERIAL SIZE IN.

Angle/Repose 1 •• Drop Apparent Cohesion PSF I , ei^

Moi8tur^. NA @ % Moisture, NA Angle Slide Steel Plate Bulk Density PCF @ % Moisture, NA @ % Moisture. NA

Sp ;c. Gravity, Material Size : NA

IN.

Shrinkage Limit NA % Flow Jndex NA %

Angle/Repose 10" Drop @ %Moistvre, NA Angle Internal Friction @ % Moisture, NA

,/2" #4 #8 ^16 #30 #50 *L tLt M..O. STANDARD SCREENS: ASTM STO. SPEC. EM-70 -#20o MUCK: PCT. BY WT. AND SHAPE BETWEEN SCPFPMc

SUMMARY

RQDîon Dl^'1 NI^^ Lire8t0ne' fine «rained- St-ngth; NA. KUü. 100%. DUW: NA. Ground water: Dry. Hardness: NA*

System Class; TBM Robbins 105-144. 10'-4" dia 26 RnhW«. * RPM: 6. Torque: 246 K ft #. Thrust- 267 K* d"-26 Robbias disc cutters. Haulage: Rail. Support: None. #* MUCkmg: BUCket8 t0 belt-

MDN STUDY 9/1/72



C-80

fe^.^^^..-^.;,-.^.^.^ :üirttaltaä : ^^^^'^Hrtillrtlilfil-iniif-^-^^-"^^"- ^^^^^^^■*^^^^^û^^Jî^^^^;.^:

■

ROCK DATA:

Litholügy: Sedimentary, sandstone, medium grained, light brown to red, massive, porous, poorly cemented.

Uniaxial Compressive Strength: 10 KPS1 RQD: (Estimated) 84% Dry Unit Weight: 150 PCF

■

■ Ground Water: Generally dry. Hardness: NA

TUNNEL DATA: ■

,

Size: 12'-11" diameter. Grade: (+).125% Ventilation System: 15-17 KGFM exhaust, 36" dia. pipe, 100 HP ©4100'. Utility System: 3 1/2" v/ater line, 6" air line, 8" pump line. Water Inflow: 20-100 gpm. Power System: 7300/480V Haulage System: Muck, supplies, personnel, 10 ton locomotives, 10 CY

cars, 24" gage, 65 lb. raU. Support System: 4" H full rings, 4' centers: 35%; 13" x 9' pans 3/4" x 7'

rock bolts: 10%.

EXCAVATION DATA;

■

Machine: Robbins 141-127, total weight: 125 tons. Cutters: 32 Robbins steel disc, (""-».ge: 6-12". Center: 1-U" triple disc.

Interior: 23-11". Rotation: Center cutter integral with head, 5. 2 or 2.6 RPM. Torque: 472 to 524 K ft. #. Thrust: 331 K# to 382 K#. operating. Anchor pressure: 1,000 K#. Muck Collection: Pickup by buckets fixed to head, discharging on 30" belt

to a 24" x 204' belt on gantry. Power System: 6-480/240V electric motors drive head. Hydraulic pumps

power thrust and gripper cylinders. Guidance System: Laser

MDN STUDY 9/!/72


Ident. No. LAY-1 Sheet 1

C-81

■. ■N^Birümffrfftitir ^ ____: _..^ ; ■-IL"J^-"-

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Si.Te (-) 0.056" : 0


ATTERBERG LIMITS, MATERIAL SIZE (-P. 056 IN.

Liquid Limit 21.20% Plastic Limit 17.06 % Plasticity Index 3.14 % Toughness Index 0.52 %



Angle/Kepose 1" Drop Apparent Cohesion PSF @ 3.6 % Moisture, 37° @ 3.6 % Moisture, 210 Angle Slide Steel Plate Bulk Density PCF @ 3.6 % Moisture, 27° @ 0.0 % Moisture, 97.4


ru r r r r r r r DRY UNI IT we l<5HT. LOOSE IM PCF

60 MOISTURE CONTENT 4.1

4" x 4" x V

"~ ~"

£ so lAR? £5; r si? I c es ERV £fi

40

?! 30 u

* 20 ; Ss i53 7

10 58 — \ / \

r >

h2 -^ Us >

> \ /

r~ -7 V_ 7

n 0 ^ 4? 17 TH •-. £ N £ SHAPF. PI PI PI PI A A A / i A A

I + 6"

SUMMARY Rock Class:

1/2" #4 #8 ^hS #30 #50 #100 #200 \

STANDARD SCREENS: ASTM TTD. SPEC. El 1-70 MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS

-#200

Sedimentary: Sandstone, medium grained, massive, porous, poorly cemented. Strengtn: Medium. RQD (Est. ) 84%. DUW: 150 PCF. Ground water: Dry. Hardness: NA.

System Class; TBM> Robbins 141-127, 12- 11" iia. 32 Robbins disc cutters. RPM: 5.2. Torque: 498ft#av. Thrust: 357 K # av. Mucking: Buckets to belt conveyor. Haulage: Gantry conveyor to rail cars. Support: Steel ring sets, 35%, rcof p:vr3 and rock bolts, 10% of 4100'.

MDN STUDY 9/W72



C-82

■"'"'•■-'■ J-1'-J-|iiTiimfii-tiilliill^ -' ■---' .^^»MM»ta»J^.«»âM^^

ROCK DATA;

liithology: Sedimentary, conglomerate, well graded cobbles to pebbles of quartzite poorly to well cemented with reddish brown sandstone.

Uniaxial Compressive Strength: NA. RQD: (Estimated) 85%. Dry Unit Weight: NA. Ground Water: Dry. Hardness: NA.

TUNNEL DATA: .

.

■

Size: 12' 11" diameter. Grade: (+) 0.125%. Ventilation System: 15-17 KCFM, 36" diameter pipe, 100 HP Utility System: 3 1/2" water line, 6" air line, 8" pump line. Water Inflow: 20-100 gpm. Power System: 7300/480V. Haulage System: Muck, supplies, personnel by railcar 10 ton locomotive,

10 CY cars, 24" gage 65# rail. Support System: 4" H full rings in bad ground.

■

EXCAVATION DATA: ■ ■

Machine: Robbins 141-127. Total weight: 125 tons. Cutters: 30 Robbins steel disc, gage 6-12", center 1-11" triple disc

interior 23-11". Rotation: 5. 2 RPM. Torque: 490. 7K ft. lb. Thrust: 585. 2K lb. Muck Collection: Buckets from face, belt to rear. Power System: 6-100 HP motors drivehead. Guidance: Laser.

MDN STUDY 9/1/72



C-83

ni'iiirrfTTi'-- ■'- ■ -- ■■-'-"»-.-^■^■-■-■^-»■'.»■•.■-■-■—■^•t—^^-'"»•»-'-'-^".

MUCK DATA

Abrasf reness - « • -TV .


ATTERBERG LIMITS. MATERIAL SIZE



Angle/Repode 1" Drop Apparent Cohesion PSF @ 3.4 % Moisture, ö« @ 3.0 % Moisture 15 Angle Slide Steel Plate Bulk Density PCF @ 3.4 % Moisture, 32° @ 0. 0 % Moisture, 88

70

60

.^pec. Gravity, Material Size (-) 0.75": 2,65

(-)0.056 IN.


Angle/Repose 10" D-op @ 3.4 % Moisture, 32° Angle Internal Friction @ 3.0 % Moisture, 39°

DRY UNIT yfFIGHT. [flflgg 104 ^f

MOISTURg INTENT 3.3^

T* +6'

SUMMARY Rock Class:

1/2" #4 #6 #16 #30 #50 #100 ^00 f STANDARD SCREENS: ASTM STD. SPEC. El 1-70


Sedimentary: Conglomerate, quartzite cobbles grading to pebbles.

D^ NA" r ""ri wi<Vand8tom!- Strength: NA: RQD V**-) 85% UUW: NA. Ground water: Dry. Hardness: NA.

System Class: TBM ^-bins 141-127. 32 Robbins disc cutters RPM- 5 2 Torque: 491 K ft #. Thrust: 585 K #. Mucking: Buckets totelt.' ^ Haulage: Rail. Support: Rock bolts, normal, ring sets in bad ground.

MDN STUDY 9/1/72



C-84

.

ROCK DATAt

Lithology: Sedimentary, siltstone, fine grained, gray, more than 33% quartz, 30% clay, 10% feldspar, 15% mica, chlorite and gypsum.

Uniaxial Compressive Strength: 2 KPSI RQD: (Estimated) 70% Dry Unit Weight: 142 PCF Ground Water: Table above tunnel br.t sealed off by overlying beds. Hardnese: NA

TUNNEL DATA:

Size: 20.5' round. Grade: (+) .05% Ventilation System: 18 KCFM exhaust 30" pipe, 60 HP. Utility System: 6" air line, 4" pump line Water Inflow: 50 GPH. Power System: 4160/440V, rectified to 440 DC for head drive motors. Haulage System: Muck, supplies, personnel, by 16 CY cars, 15 ton motor,

24" gage 70 lb rail. Support System: Reck bolts, 8' and 10' x 3/4", set in epoxy with 5' and

13' x 16 gage pans, ^hotcrete placed to prevent air slacking.

EXCi VATION DATA;

Machite: Dresser TB-205, total weight: 200 tons Cutters: 36 Dresser steel and TCB insert discs, 32 Kennametal U43 and

U44 "pick" bits. Gage: 6-#9T5TDl TCB insert discs. Center: 6-U43TC bits mounted a ound a 4" chisel. Interior: 30 Type STD steel discs and 26 U44 TC bits mounted on 4 bit blocks.

Rotation: 0-6 RPM range, 5 BFM normal operating. Torque: Maximum 879 K ft. #., normal operating 586 K ft. #. Thrust: Maximum 1, 583 K # operating 431 K #. Anchor Pressure: Maximum 6, 616 K#.. Muck Collection: Buckets from face to 36" belt to 36" belt on 140' gantry. Power System: Four 180 HP D. C. head motors, one 75 HP for hydraulic

system. Guidance System: Laser

: ■

MDN STUDY SYSTEM DATA SHÊT Ident. No. NAV-1 9/1/72 MDN Sheet 1

C-85

MUCK DATA

Abrpclveness N. A.

Pot. Vol. Change, Material Spec. Gravity, Material Size (.)0.056": 1.3 Size (-)0.75" : 3.13

ATTERBERG LIMITS, MATERIAL SIZE (-)0.056 IN.




Angle/Repose 1" Drop Apparent Cohesion PSF @ 7.7 % Moisture, 30° @ 7.5 % Moisture, 340 Angle Slide Steel Plate Bulk Density PCF @ 7.7 % Moisture, 30o @ 0.0 % Moisture, 98

Angle/Repose 10" Drop @ 7. 7% Moisture, 30° Angle Internal Fricf.on @ 7.5% Moisture, 36°

T7 +6' 1/2" #4 #8 #16 #30 #50 #100 ^200 f


-#200

SUMMARY Rock Class; Sedimentary: Siltstone, fine grained. Strength: Very low. RQD (Est.) 70%. DUW: 142 PCF. Ground water: Minor. Hardness: NA.

System Class: TBM, Dresser TB 205, 20.5' di^., Dresser disc cutters: 6TCB and 30 steel, 32 Kennametal, TC3 "pick" bits. RPM: 5, 586 K ft #. Torque: 431 K # thrust. Mucking: Buckets to belt. Haulage: Rail. Support: Roof plates and rock bolts, at 3' or 4', continuous.

MDN STUDY 9/1/72


Ident. No. NAV-1 Sheet 2

C-86

ROCK DATAt

Lithology: Sedimentary, sandstone, gray, medium grained, massive, friable and porous. Grains angular to subrounded, primarily quartz, poorly cemented.

Uniaxial Coznpressive Strength: Less than 1 KPSI, disintegrates when wet. RQD: (Estimated) 60% Dry Unit Weight: 117 PCF Ground Water: Table above tunnel but sealed off by overlying beds. Hardness: NA

* I

TUNNEL DATA:

^%::

Size: 20. 5' diameter. Grade: (+) . 05% Ventilation System: 18 KCFM exhaust, 30" pipe, 60 HP. Utility Syötem: 6" air line, 4" pump line Water Inflow: 50 GPH. Power System: 4160/440V, rectified to 440 DC for head drive motors. Haulage System: Muck, supplies, personnel, by 16 CY cars, 15 ton motor,

24" gage 70 lb rai?.. Support System: Rock bolts, 8' and 10' x 3/4", set in epoxy, with 5" and

131 x 16 gage pans, shotcrete placed to prevent air slacking.

EXCAVATION DATA:

Machine: Dresser TB-205, total weight: 200 tons Cutters: 36 Dresser steel and TCB insert discs, 32 Kennametal U43 and

U44 "pick" bits. Gage: 6-#9T5TDl TCB insert discs. Center: 6-U43TC bits mounted around a 4" chisel. Interior: 30 Type STD steel discs and 26 U44TC bits mounted on 4 bit blocks.

Rotation: 0-6 RPM range, 5 RPM normal operating. Torque: Maximum 879 K ft. #., normal operating 586 K ft. #. Thrust: Maximum 1, 583 K #. operating 123 K #. Anchor Pressure: Maximum 6, 616 K #. Muck Collection: Buckets from face to 36" belt to 36" belt on 140' gantry. Power System: Four 180 HP D. C. head motors, one 75 HP for hydraulic

system. Guidance System: Laser

■

MDN STUDV SYSTEM DATA SHEET Ident. No. NAV-2 9/1/72 MDN Sheet 1

C 87

■

^■:^w.^...,..,,..,;..^^ *.-.-^ ■ ...........fei

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size (.) 0.056": 0

ATTERBERG LIMITS. MATERIAL SIZE (-) 0.056 IN.

Liquid Limit 18.20% Plastic Limit 16. 91 % Plasticity Index 1.29% Toughness Index 0.28%


Angle/Repose 1" Drop Apparent Cohesion PSF @ 8.6% Moisture. 31° @ 8.1% Moisture. 45 Angle Slide Steel Plate Bulk Density PCF @ 8.6% Moisture. 320 @ 0. 0% Moisture. 99

Spec. Gravity. Material Size (-) 0.75": 2.72


Ang'e/Repose 10" Drop @ 8.6 % Moisture. 28° Angle Internal Friction @ 8. 1 % Moisture. 28°

J 'Z2" #4 #8 #16 #30 -*50 #100 ^200 f STANDARD SCREENS: ASTM STD. SPEC. El 1-/0

^£1! PCT. BY WT. AND SHAPE BETWEEN SCREENS -#200

SUMMARY

**°Ck C!aSS,; Sedimentary: Sandstone, massive, friable, porous, medium grained. Very low strength. RQD (Est.) 60%. DUW: 117 PCF Ground water: Minor. Hardness: NA.

^ÎM- TBM. Dresser TB205. 20.5- dia. Dresser, disc cutters 6TCB

t?t KV^ ' . ênn.ameta1' TCB "P^" bit8- R^5. 586 K ft # torque. 123 K# thrust Mucking: Buckets to belt. Haulage: Rail. Support: Roof plates and rock bolts, at 3- or 4', continuous.

MDN STUDY


MDN Ident. No. NAV-2

Sheet 2

C-88

JM towilill illillBi'lMMJ.tM^ffiia ■liaWaffi'Miini«*!! ii'll.i i-fiiiumthriiMrffiafMif'ili^-atM -■—'-'■■■-"■■'

ROCK DATA:

Lithology: Sedimentary, sandstone, fine, grained, brown to dark red massive. Uniaxial Compi essive Strength: NA. RQD: 60%. Dry Unit Weight: NA. Ground Water: Generally dry. Hardness; NA.

■

TUNNEL DATA:

, .

■ ■

Size: 18' 4" diameter. Grade: +.045%. Ventilation System: 22 KCFM, exhaust, 48" diameter pipe, 2-150 HP Utility System: 8" ait line, 4" water line, 8" pump line. Water Inflow: 40 gpm. Power System: 13200/440V. Haulage System: Muck, supplies, personnel by railcars, 15 ton locomotive

10 CY cars, 36" gage, 50# rail. Support System: Rock bolts, 5', 6', 8' x 5/8", 24" centers, 14 gauge pans

12' 6" or 8' 6" x 8".

EXCAVATION DATA; ■ •;'i-'--- ■-........i.«v.vTi■" ■■. ."■■•-'I■■■ f...-»-.-,- -iff«»,- .*

Machine: Lawrence HRT. Total weight: NA. Cutters; 32 Lawrence Mfg Tungsten Carbide Button, roller, disc and tricone.

Gage: 5 TCB roller, Interior 24 disc and 2 TCB roller, center 1-24" TCB tricone.

Rotation; Head 11 RPM, center 30 RPM. Torque; Center cutter 150 HP, head 750 HP. 364K ft. lb. Thrust; 492K lbs. Muck Collection; Buckets from face discharging to 24" belt. Power System: Electro-Hydraulic. Total HP: 960 Guidance System: Laser

■' ■

■

■

■ ■

; ■

.

MDN STUDY 9/1/72


Ident. No. RO-1 Sheet I

C-89

:

I I I I I

I

I

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size NA ;


Liquid Limit NA % Plastic Limit NA % Plasticity Index NA % Toughness Index NA %

MATERIAL SIZE IN.

Angle/Repose 1" Drop Apparent Coh-sion PSF @ % Moisture, NA @ % Moisture, NA Angle SliJe Steel Plate Bvik Density PCF @ % Moisture, NA @ % Moisture, NA

70

Spec. Gravity, Material Size NA :

IN.


Angle/Repose 10" Drop @ % Moisture, NA Angle Internal Friction (Q ■ % Moisture, NA

60

i SO u> iij » >- m i- g 30 u oe Id

^ 20

40

10

0

SHAPE

1 — r n r r r 11 ^^ r r r — — — — —

BMK DRY UN IT WE IGHT. LOOSE 80 pre — ■MMMi IHHHi

MOISTURE CONTENT 4.3* ^^" mmm "■*" ^^ MM

_— 1 WMGES- r siz E 0BS ERVED4"x114"x3/4" 1

«BMI "■"

' MMMi

" ' " "' '

». V

'

7 \ 1 "■■

_...> r v " '

7 \

//"fl 9.0 li.O f /5.Ö \ %

^ ^ N^,

^ y

L-LJ |— r^

?> ^— /O li. ^ ——

PE PE PE P A A A A A f 6 3 2 H

i M

i '?" #4 i #fi -#!. . #.. ^ #r, •#.r ar* "~i —J

+ 6' STANDARD SCREENS: ASTM STD. SPEC. El 1-70 —#200


SUMMARY

Rock Class: Sedimentary: Sandstone, fine grained, massive. Strength: NA. RQD: 60%. DUW: NA. Ground water: Dry. Hardness: 32, schmidt.

System Class: TBM Lawrence HRT 18' 4" dia. 32 Lawrence button roller, di cutters. 11 RPM head, 30 RPM center. 364 K ft # torque. 492 K # thrust. Mucking: Buckets to belt. Haulage: Rail. Support: Rock bolts 24" centers.

sc

MDN STUDY 9/1/72


Ident. No. RO-1 Sheet 2

C-90

tfiiiiiiHiîthiiiiiiiMii'tfriflinri . ■ —

ROCK DATA:

Lithology: Sedimentary, sandstone, coarse grained, poorly consolidated, arkosic, with tunor layers of thin seamed siltscone.

Uniaxial Compressive Strength: 50 to 150 PSI dry-disintegrates when wet. RQD: (Estimated) 30%. Dry Unit Weight: 125 PCF. Ground Water: Saturated when first opened. Hardness: NA

TUNNEL DATA:

■ Size: 10' high by 8' wide, rectangular. Grade (+) 1/2%. Ventilation System: 5 to 7 KCFM, pressure, 18" dia. vent tube. Utility System: 4" airline. Water Inflow: 20-25 gpm. Power System: 440/1',0V, trailing cable. Haulage System: Muck, personnel and supplies by rail cars, 24" gage,

40# rail. Support System: None, rock bolts and/or shotcrete in bad ground.

■

EXCAVATION DATA:

Machine: Alpine Miner, Type F6-A. Total Weight' 11 tons. Cutters: 72, Kennametal U43K, Carbide tipped, "pick" type. Cutters,

mounted on twin ripper heads, rotating about a horizontal axis at 90° to a boom which moves the heads vertically and horizontally.

Rotation: 60 RPM, motor and gear box integral with boom. Torque: 50. 4 HP Thrust: Sumping thrust from crawler motors, 2 @ 20.4 HP. Vertical and

horizontal by hydraulic cylinders powered by a 10.4 HP electro-hydraulic system.

Anchor Pressure: Crawlers only. Muck Collection: Central 14" chain conveyor, fed by gathering arms, dis-

charges on an 18" x 30' belt feeding 116' of 20" Serpentix conveyor. Trans- verse folds are molded into 20" x 8" 1 >ng rubber Serpentix sections, which are bolt connected at reinforced flanges connected to an endless chain driven by a sprocket. Folds allow inside edge to compress and outside to expand on curves. Vertebral side rail sections, alternating with straight sections, are supported by wheeled gantry legs riding a 60" gage track, under which cars are spotted.

Power System: 440V, trailing cable. Guidance Sysl jm: Transit/Laser.

MDN STUDY SYSTEM DATA SHEET Ident. No. WNG-1 9/1/72 MDN Sheet 1

C-91

.. ^^..ât.-' -- - ■» ^"^■akiciri'Viiin ..,....;i.....,jî- ..j«,..^.,^..

MUCKDATA

Abrasiveness N. A.


Spec. Gravity, Material Size (-) 0.75": 2.71


Liquid Limit 24. 90 % Plastic Limit 19.97% Plasticity Index 4.93% Toughness Index 0.66%


Angle/Repose 1" Drop Apparent Cohesion PSF @ 10.1 % Moisture, 34° @ 10.6 % Moisture, 0 Angle Slide Steel Plate Bulk Density PCF @ 10.0 % Moisture, 32° @ 0.0 % Moisture, 85

Shrinkage Limit 19. 94 % Flow Index 7.40%

Angle/Repose 10" Drop @ 10. 1 % Moisture, 31° Angle Internal Friction @ 10. 6% Moisture, 27°

70 n DRY UN] T we IQH T, UPQ§E 82 PCF

60 MQISTURe CONieNTlQ.? 1

1- mm. UA&G. 551 r SUI ; 0BS iRVEP 14" x 4" x 4" I 90 (9 UJ i CO

PE

RC

EN

T

sc \EE NEC Bl FOf E C RYI S|6 DRY SCREENED (ASTM CI36) AFTER WASHING (

iti i i ASTM CII71

i i / Mt

I tSJ L ^• J70 1*0

IS ' f

10 z •■», •*•* 0.7

> jjl V /

..^ *?„ / =-

s r^ «?" r

0 y y' '•.. h 2- i£~ mm sT h

0

SHAPE AE AE AE S A A A A A A

+6"

SUMMARY Rock Class:

3" 2" I" 1/2" #4 #8 #16 #30 #50 #100 #200

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 -#200


Sedimentary: Sandstone, coarse grained, poorly consolidated, arkosic, minor thin seamed siltstone. Very low strength. RQD (Est.) 30%. DUW: 125 PCF. Ground water: Saturated. Hardness: NA.

System Class: TBM, Alpine F6A, twin head, 10' high x 8' heading. 72 Kennametal TCB pick type bits. 60 RPM, 50.4 HP head torque, 10. 4 HP boom power, 40. 8 HP sumping thrust. Mucking: Gathering arms-flight conveyor. Haulage: Elevating conveyor - Serpentix conveyor on gantry - rail cars. Support: Normally none. MDN STUDY SYSTEM DATA SHEET Ident. No. WNG-1

9/1/72 MDN Sheet 2

C-92

■

ROCK DATA:

Lithology: Sedimentary, sandstone, coarse grained, poorly consolidated, arkosic, with minor layers of thî seamed siltstone, varying concentrations of replacement silica.

Uniaxial Compressive Strength: 50 to 150 PSI dry-disintegrates when wet. RQD: (Estimated) 30% Dry Unit Weight: 125 PCF Ground Water: Saturated when first opened. Hardness: NA

TUNNEL DATA!

Size: 5' wide x 91 high, nominally rectangular. Grade: Varies. Ventilation System: 5 to 7 KCFM, pressure, 18" vent tube. Utility System: 2" air, 1" water line. Water Inflow: 20-25 gpm when levels are first opened; generally dry after

drainage. Power System: None in development headings, 440V to scraper hoists,

110V lighting. Haulage System: Muck is scraped from the face of a cross cut to a slusher

drift, cross scraped to a muck raise, and loaded into 4 cu. ft. rocker dump rail cars on main level about 80' below. Scrapers are 42", hoists 15 HP. Personnel access by ladder, supplies by rail cars and air-powered hoists through raises.

Support System: None. Rockbolts in bad ground.

EXCAVATION DATA:

Conventional Scraper-Rail Haulage System. Drilling: LeRoi Model 35 jackhammers mounted on 6' airfeed legs. Drill Round: Five hole box or vertical line burn cut, 6' depth, included in

18 hole round, all holes 1 1/2" diameter. Explosives: 50# Dupont 40% Galex #2, Powder factor: 5#/cu. yd. Blasting: Safety fuse and capr.. Mucking System: 42" Scrapers, 15 HP hoists.

MDN STUDY SYSTEM DATA SHEET Ident, No. WNG-2 9/1/72 MDN Sheet 1

C-93

. ... iljM|l||iilMmi^^ -

MUCK DATA

Abrasiveness Pot. Vol Change. Material Spec. Gravity, Material N- A- SlZe (-) 0-056,,: 0 Size HO. 075": 2.72


Liquid Limit 25.25% Plastic L'mit 24.74% Plasticity Index 0.51 % Toughness Index 0.13%


Angle/Repose 1" Drop Apparent Cohesion PSF @ 9.0 % Moisture. 32° @ 9.0% Moisture, 0 Angle Slide Steel Plate Bulk Density PCF @ 9.0 % Moisture. 40° @ 0. 0 % Moisture. 86


Angle/Repose 10" Drop @ 9. 0% Moisture. 31° Angle Internal Friction @

70

60 DRY UN i

T WEIGHT. in^F «V_££E MOISTURF CONTENT 8.3 ^

9. 0% Moisture. 28

r

+T- 8" 3" ¥' ? '/2" ^ #8 We #30 #60 #tio Vtot I STANDARD SCREENS: ASTM STD. SPEC. Ell-TO -#200


SUMMARY

-Sg Cla8S:. S^êntary: Sandstone, coarse grained, poorly consolidated arkosic. minor thin seamed siltstone, varying replacement .ml v !v sfrength. RQD (Est.) 30%. DUW- 125 PCF Grnnn^ T c Very low

Hardness: NA 125 PCF. Ground water: Saturated.

.o«.... „aulage, Rau car.. s;ip to ^:F^t-u tn^ ^:P«

MDN STUDY 9/1/72


Ident. No. WNG-2 Sheet 2

C-94

iiMltti»ilaiillaiiiîfflliiliiliriii^-iII',tiii iM'''iiitiifiKrii -jitr'"'-fM-,-t" - , .

HBEHNMHBHMHMl

ROCK DATA:

Lithology; Sedimentary, sandstone, arkosic, irregularly bedded, loosely consolidated with layers and lenses of silty mudstone.

Uniaxial Compressive Strength: Less than one KPSI. RQD: (Estimated) 15% Dry Unit Weight: 113 PCF Ground Water: Saturated; water table above tunnel, heading ib d/ained in

advanced by lateral pilot holes in ribs. Hardness: NA

TUNNEL DATA:

Size: 21 ft., diameter. Grade: (+) 0.2%. Ventilation System: 20 KCFM, 36" pipe, pressure at face, exhaust in

access. Utility System: 6" air line, 6" pump line. Water Inflow: 200 gpm. Power System: 4160/4Ö0V. Haulage System: Muck, personnel, supplies oy rail cars. Support System: Continuous, precast concrete rings 8" and 10" thick,

erected in four-41 segments.

EXCAVATION DATA:

Shield: R.obbins 221S ripper. Total weight: 285 tons Thrust: 3, 500 tons total. Muck Collection System: Muck is ripped from the facs by a ripper tooth and

drawn through the shield to a 6' conveyor by hydraulic ram with a bucket opposite the ripper tooth.

Power System: Hydraulic. Guidance System: Laser

MDN STUDY SYSTEM DATA SHEET Ident. No, SF-1 9/1/72 MDN Sheet 1

C-95

■■•■■•■-— ^•^\irt,i-Miim'immiiimiäimmättm*m

MUCK DATA

Abrasiveness N. A.


Spec. Gravity, Material Size (-)O. ISB'i 2.86

ATTERBERG LIMITS, MATERIAL SIZE (-)O. 185 ^

Liquid Limit 17. 75% Plastic Limit 16. 19% Plasticity Index 1.56 % Toughness Index 0.27%

MATERIAL SIZE (-)O. 185IN.

Angle/Repose 1" Drop Apparent Cohesion PSF @ 14. 3 % Moisture, 38° @ % Moisture, NA Angle Slide Steel Plate Bulk Density PCF @ 12.5% Moisture, 36° @ % Moisture, NA

70



x o Ul 3R

ffi

O

a.

60

50

40

30

0

SHAPE

r c r r r i r r 11 r r — —— —

mmmm DRY UN IT we IGHT. LOOSE 91 PrF

^■■*

MOISTURE CONTFNT 18.5 % ■■■■ •^ —

y iRG ES' r sui l OBS ERVED5"x4"x3" — ^^m ^^**

——.

m

"

i — _ "" 7

^ » *• fe "^^

sr & - tf- ^- ̂

^^

mmmm _ 1 0 ^J " ff —"

1

RE SE AI AI AI AI A

t 6 3 2 II 1 ll i/ 2" #4 #« -#lf . #1! i • #e;r ■» Ar in ■ a£ in J —J

20 —

10

+6' STANDARD SCREENS: ASTM STD. SPEC. El 1-70 -#200


Sedimentary: Sandstone, arkosic, loosely consolidated, with

SUMMARY Rock Cla^s:

layers and lenses of silty mudstone. Strength: Very low. RQD (Est.)' 15%. DUW: .113 PCF. Ground weier: Saturated. Hardness: NA.

System Class: Shield, Robbins 221S ripper, 21 ■ dia. Thrust: 3500 ton.. Mucking: Hydraui'c boom operated bucket scraper to conveyor. Haulage: Rail. Support: Continuouo, precast concrete ring segments.

MDN STUDY 9/1/72


Ident. No. SF-1 Sheet 2

C-96

-—*—' m-:,-x.ii.,

■

ROCK DATA:

Lithology: Sedimentary, sandL* .e, biotite rich silisfcone, poorly to well consolidated, poorly to well sorted.

Uniaxial Compressive Strength: 2 KPSI RQD: (Estimated) 50% Dry Unit Weight: 142 PCF Ground Water: Sandstone saturated, water tab'e above tunnel, heading

drained in advanced by lateral pilot holes in ribs. Hardness: NA

- ■

TUNNEL DATA:

Size: 21 ft., round, Grade: (+) 0.2 pet. Ventilation System: 20 KCFM, 36" pipe, pressure at face, exhaust in

access. Utility System: 6" air line, 6" pump line. Water Inflow: 20 gpm Power System: 4160/480V Haulage System: Muck, personnel, supplies by rail cars. Support System: Continuous, precast concrete rings 8" and 10" thick,

erected in four 4' segments.

EXCAVATION DATA:

Shield: Robbins 221S ripper, total weight: 285 tons. Thrust: 3, 500 tons total. Muck Collection System: Muck is ripped from face by a ripper tooth and

drawn through the shield to a 6' conveyor by hydraulic ram with a bucket opposite the ripper tooth.

Power System: Hydraulic Guidance System: Laser

MDN STUDY SYSTEM DATA SHEET Ident. No, SF-2 9/1/72 MDN Sheet j

C-97

0 Q

D D [ 1

rrY■■-^!"nn■^^-^■Y^"'t^^■'i'"ilil■^^*^'"■^^ - ^.^..^MtM*. A^..^,..«.,...;,.,.», - -.^.■^.»,..^..„-,.^.^,.,. ..„.,. »..v vl.,^,»-«,^..^: ..^...^.a»!..^-,,, ■■

I I I I I I i i

I I I I L

MUCK DATA

Abrasiveness N. A.

Pot. Vol. Change, Material Size HO. 056": 0


ATTERBERG LIMITS, MATERIAL SIZE (.)0. 056 IN.

Liquid Limit 31.5 % Plasticity Index 4.7 %

Angle/Repose 1" Drop @ 15.1 % Moisture, 38° Angle Slide Steel Plate @ 15. 1 % Moisture, 30°

70

60

Plastic Limit 26. 8 % Toughness Index 0.61 %

MATERIAL SIZE {-)1.0 IN.

Apparent Cohesion PSF @ % Moisture, NA Bulk Denaity PCF @ % Moisture, NA

Shrinkage Limit 21.5 % Flow Index 7.6 % .

Angle/Repose 10" Drop @ 15.1 % Moisture, 36° Angle Internal Friction @ 15 % Moisture, 27°

o üj »

CD

Ü

2 a.

50

40

30

20

10

0

SHAPE

r 1 1 1 r r r r r r —— "^

— — DRY UNIT WE ICHT. LQOSE 80 PCF MOISTURE CONTENT 17.5 % "■"

" ■ ' ■•■

LARQ Ud r siz ; 0 BS EWEC 3* x 2' x 8" ~ i— ,^^"

— J jfj* / \

i 1 J 1. 1 1 1 ^SCREENED BEFORE DRflNfi. 4 f V i i r—i—i—i 1—i

DRY SCREENED (ASTM CI36)

/ T \ AFTER WASHING ( i i.i i

ASTM CII7] 1 I ■ z TB

«•• ••• '—" -ti ^ m \

- '— ■

r ^

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f 6 3 " 2 M II h f2" #< > #£ #i( 5 #3 0 #5( D #IC 10 ** «1 +6"

SUMMARY Rock Class:

STANDARD SCREENS: ASTM STD. SPEC. El 1-70 MUCK; PCT. BY WT. AND SHAPE BETWEEN SCREENS

-■#200

consolidated. Ground water: Saturated.

Sedimentary: Sandstone and siltstone, poorly to well Strength: Very low. RQD (Est.) 50%. DUW: 142 PCF.

Hardness: NA.

System Class: Shield, Robbins 221S ripper, 21 • dia. Thrust 3500 tons. Mucking: Hydraulic boom operated bucket scraper to conveyor. Haulage: Rail. Support: Continuous, precast concrete ring segments.

MDN STUDY 9/1/72


Ident. No. SF-2 Sheet 2

C-98

.^.vtîa.^:^-^...: -i .«t.-«-,'r'l -^.,.^. at^»...^.»-^.. ...^ - ""'■"-"'■■-•"■■ ■—■■■'•■"■"f'-"-'' ■-- -., „■... . ,:,r . . w

ROCK DATA:

Lithology: Sedimentary, rnudstone, dark gray, fine grained, massive. Uniaxial Compressive Strength: 1) iCPSI dry. RQD: (Estimated) 90%. Dry Unit Weight: 144 PCF. Ground Water: Generally dry. Hardness: NA

TUNNEL DATA;

Size: 101 high x 91 wide (T'-e" top, 9,-6" bottom). Grade: (+) 1/2%. Ventilation System: 5 KCFM, exhaust from face, pressure to venthole,

16" flexhaust, 24" vent tube, 2-25 HP Axivane fans. Power System: 440V trailing cable. Haulage System: Muck, personnel and supplies by rail cars, 36" gage,

45# rail. Support: 4" WF steel sets at 3' or 6'.

EXCAVATION DATA:

Machine: Alpine Miner, Type F6-A. Total Weight: 11 tons. Cutters: 40 Kennametal U43KH, Carbide tipped, "pick" type. Cutters

mounted on twin ripper heads, rotating about a horizontal axis at 90° to a boom which moves heads vertically and horizontally.

Rotation: 78 RPM, motor and gear box integral with boom. Torque: 50.4 HP. Thrust: Sumping thrust from crawler motors, 2 @ 20.4 HP, vertical and

horizontal by hydraulic cylinders powered by a 10.4 HP electro-hydraulic system.

Anchor Pressure: Crawlers only. Muck Collection: Central 14" flight conveyor fed by two gathering arms

mounted on an inclined apron, discharges on an 18" elevating conveyor loading rail cars.

Power System: 440V, trailing cable. Guidance System: Transit/Laser.

MDN STUDY SYSTEM DATA SHEET Ident. No. KM-1 9/1/72 MDN Sheet 1

C-99

^t...«^....;^,..,.^,^^

MUCK DATA

Abrasiveness Pot. Vol. Change, Material N' A- Size {-) 0.056": 0


Liquid Limit 28. 30% Plastic Limit 24. 97 % Plasticity Index 3. 33 % ^ Toughness Index 0. 92 %


Angle/Repose 1" Drop Apparent Cohesion PSF @ 12.7 % Moisture, 29° @10.9 % Moisture, 37 Angle Slide Steel Plate Bulk Density PCF @ 12. 7 % Moisture, 31° @ 0. 0 % Moisture, 79

Spec. Gravity, Material Size (-)0.75": 2.87

(-) 0.056 IN.



IV

E r r r r r r r r r — — — 1

60 DRY UN n WE; iq\ IT. LOOSE 81 p^p

:NT 9.4 %

~ mmm m —"

— MOISTURE CONTF "^■ ■■~, -— MM

x 50 LARG EST SIZ E OBS ERVED36"x14"x8" ■VMM ""^ _

9 Ui

( m __ 1 r " 1

—

„ 40 — • -V- • •

J ^ ■ "^

—

m i i i i i i i SCREENED BEFORE 0RYIN8 5RV SCREENED (A! }TM CI36) ~

îB* w^m

2 30 - _ _ ■ • LL AFTER WASHING (ASVM CII7) • •II ii . . . '

1 '

u £

y / /

m / r~ —— —

I Wt S 20 ^^_

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/ V — ™

___ . \ j n \ "" 7 t ^",

10 ___ j^^ X •AiS IM I \ ^X t ■—"

^^^ «7 19 2 t '•■ \ sl~ ? *«C

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SHAPE PI 2 PE PI PI PI A A A A A A

t +6

6" ii

* 2" I" 1/2- #4 #8 #l6 #30 ^0 ^

STANDARD SCREENS: ASTM STD. SPEC. El (-70 MUCK: PCT. BY WT. AND SHAPE BETWEEN SCREENS

0 #200 f -#200

SUMMARY Rock Class: Se din tiei itai •v: M xidf itOT IP ( "R1 ia1 f"\ fir f> 0 7>a rl a »4

Medium strength. RQD (Est. ) 90%. DUW: 144 PCF. Ground water: Dry. Hardness: NA

System Class: TBM# Ajpine F6Af ^^ head> 101 high ^ ^ heading> 40 Kernametal

TCB pick type bits. 78 RPM, 50.4 HP head torque. 10.4 HP boom power 40 8 HP sumping thrust. Mucking: Gathering arms - flight conveyor. Haulage- Elevating conveyor-rail cars. Support: Steel sets at 3' or 6', continuous

MDN STUDY

9/1/72


Ident. No. KM-1 Sheet 2

C-100

, ./..A..;J....a^î^.Ul«jaitJ ■ . j .

APPENDIX D

ALGORITHM DEVELOPMENT

In simple regression- it is supposed that with each observation value, there is another quantity which can be observeJ or somehow related to the observation. After n observations, there exists a series of pairs, (xj, yj), (x2. 72)» " ' '• (^ YrJ' The question we wish to answer is to deter,nine if there is a relationship between y and x and how this relationship can be obtained. 1

One may assume that there is such a relationship, and that this relationship is linear. With this assumption, one may write

y = ax + P (n

The x^, i = 1, • • • , n, are the values of the independent variable x, and the y^, i = 1, • • • , n, are the values of the dependent variable y. a and ß are the coefficients which will have to be determined from the observation points.

It is possible that a relationship exists between x. and y, but the relationship is not linear. A possible alternate in this case is to find another variable, x^, related to x, such that y can then be linearly related to xl. The new variable x^ will then be used in place of x in the discussions that follow.

Assuming that the linear relationship is valid, we can create an error term which is the sum of the squares of all deviations of observed values from the linear Equation (1). Thus the error c is

n 2 « = L (Vi " <oxi + P» (2)

i = 1

and determine a ami jl so c is minimum. This simple regression is known as the method of "least b-j>iares". The solution can be shown to be:

2 or = v /s (3)

xy x

p = y - 0* (4)

D-l

_^_

where

n

i = l ■

n

xy = TTTX,

{*i'**K'y i = 1

(5)

(6)

x and y are the arithmetic averages of the xj ar d yi respectively.

Equations (3) and (4) give the necessary coefficients in terms of observed values for the predictor Equation (1). If y had been the MDN, and x an in-situ rock property 'or some transformation of it), then this simple regression would have resulted in a predictor equation for the MDN.

A procedure similar to the simple regression technique will be applicable if we want to relate a dependent variable y to several independent variables xj, X2, X3, • • •, xm_i. (Note the xj, X2, • • •, xm_i are independent variable and not the observation points themselves). If n observations are taken, then one has the following sets of points: (yp xltl, x2>1, X3|1, • • •, xm_1(1), (y2, x1>2. x2( 2, X3t 2, • • • , xm-l,2). * • •• (Yn« xln- x2n' x3n' ■■m ■l,n)

A linear relationship is assumed to exist between y and xj, X2, Km-l,n- Thus, one has

y.«o+Vl +x2y2 + + a .x m-1 m-1 (7)

The coefficients o0, aj, • • •, «m.i will have to be determined from the n observations of the variables.

To solve for the coefficients requires the manipulation of certain arrays. Defining the following one dimensional arrays:

J /yi

w (8)

^m-I, IVnl

D-2

■ ^^^^^ .^:-Mht^.tMifci>Û. _

* ♦

Let A be the two-dimensional array.

i1 x1.2 *2,1 1 xl,2 x2,2

A =

xm.l,l\ xm-l,2

1 xl.n x2,n •

Define a vector error by:

z = w - Aft

The scalar error is:

c = z z = [w - Aor] [w - Aff]

*m ■l.n/

T T T T T T = or A Aor - (w A« + or A w) + w w

The derivative with respect to a is;

d« T T — = 2AAAa - 2A w

(9)

(10)

(11)

(12)

For minimum error, dc/da = 0, thus

T T a = (A A) A w (13|

T A is the transpose of the matrix A given by Equation (9).

The general computational procedure is as follows:

(1) Form the array A as given by Equation (9).

(2) Obtain the transpose, AT, from A. This is just a matter of interchanging rows and columns.

(3) Compute ATA. then (ATA)"1, then (AT^'VT. This involves a series of matrix multiplications and matrix inversion. These techniques are readily available from a computer.

(4) Form the array w from Equation (8).

D.3

.....__ „..._ _..._ _ ■_

(5) Multiply the result of Step (3) by the result of Step (4). This yields a set of coefficients a0 Ofj, • • •, «m-i.

(6) Test for goodness of fit or the quality of the predictor equation.

A basic assumption is that the predictor equation is linear, aid that the independent variables to use are the observation variables themselves. It may be necessary to define another set of variables xj', X21, • • ■, xm-l ;0 use in order to obtain a linear relationship.

It often happens that the independent variables are themselves related. If a linear relationship exists between any two of the independent variables,

iATA) will be singular, i.e. , ATA will have zero determinant, and hence

(ATA) cannot be computed. If this is so, a is difficult to compute, and the standard errors of the calculated coefficients are huge, giving an inaccurate predictor equation. This problem can be circumvented by performing the regression analysis with one variable, then with two variables, etc. while being careful when this problem arises. One may combine linearly any two variables that are highly correlated and use the combined variable as in the indeperdent variable.

Good computer routines exist which are available on most computers, including routines for matrix transpose, matrix multiplication and matrix inversion, together with standard routines to compute means and standard deviations of a set of observations. In fact, there also exists software that performs stepwise regression analysis, performing the above calculations plus multiple correction coefficients and residuals.

In multiple regression to predict an MDN, the MDN is treated as the dependent variable. The set of independent variables may include the following in situ rock properties.

(a) Rock classification, quantified, e.g., as Igneous = 1, Metamorphic = 2, Sedimentary = 3

(b) Compressive strength, Fc

(c) Rock quality designation, RQD

(d) Dry Unit Weight, DUW

(e) Hardness, H

(f) Ground Water, GW quantified, e.g., as Dry = 1, Minor = 2, Wet = 3

D-4

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0 fl

s

be excluded from th#. »n«i„0! "'variaDle8• Some of these variables may

-MDN CLASS Fc ROD DUW H GW

in Equation (9) corresponds to thi'nK ' ! X3' resPectively. The matrix

D-5

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APPENDIX E

TRANSPORT SYSTEM SELECTION PARAMETERS

I

I L 0

The following list of equipment capabilities, system constraints, and MDN applications is taken in part from Report No. FRA-RT-71-57, "Materials Handling for Tunnels, " HN-8080, Holmes & Narver, Inc., and Resource Management Corporation, September 1970, prepared for the U. S. Department of Transportation, Washington, D. C., with additional details provided by the authors. With some differences, the list was incorporated as Section 3. 6 of the Annual Technical Report of the first year's program. MDN applicability is based only on muck characteristics, and is subject to constraints imposed by such factors as tunnel size, grade and length, equipment and power cost and availability, and environmental considerations.

UNITIZED SYSTEMS

Conventional Rail Systems

Capabilities and Advantages

Hauling capacities can be varied by the addition or removal of cars or trains.

Materials, supplies, and personnel can be transported by the system.

Easily adaptable to automatically controlled operation. Loading and dumping can be done rapidly. Track extension is relatively simple.

System Constr?ints

A large percentage of tunnel cross section is occupied by equipment.

High speeds needed for short cycle time. Ideal road bed and track conditions are necessary if delays

cannot be tolerated. Passing tracks are required in long tunnels. A secondary system or assisted haulage is needed if vertical

grade is over 4 percent. Supply of materials required for system extension is a major

operation at high advance rates.

E-l

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Applicability

Applicable to any of the MDN's so far developed. Special cars would be required for high speed operations with very weTmucl and special dumping facilities with MDN's 6 and 7.

Siderail Systems


HaoTu„git"PaCiti" Can ^ Varied by "" addUi<>» " "-neva!

MtT,%^pli'a- ^ perso"nel ^be t™^"-d bV Automatically controlled operation. Loading and dumping can be done rapidly Can be used on much steeper grades than conventional

rail systems.

Vertical and horizontal guidance tends to reduce frequency of derails and other accidents. quency

System Constraints

ârs t^H8 f0rfSije;ail SyStemS reîre electrical bus bars to be extended with the track

Tha„dT11 "'I ^ T148 ^ CUrrent USe limit8 haâge capacity and the number of power units can result in maintenance problems and delays. amtenance

Continuous bus bars may be a personnel hazard.

Applicability

MDN's 1 through 7 could be transported by this svstem

E-2

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Free Vehicles ——————


System capacity can be varied by the number of vehicles or by change in speed.

Materials can be transported inbonnd and outbound. Guideway for operation is not required.

System Constraints

Tunnel size limits use of free vehicles in small tunnels unless turnouts are provided.

Roadway must be well graded and maintained to support weight and speed of vehicles.

Present design of vehicles uses excessive amounts of tunnel volume per ton of capacity and does not provide the ability to operate in both directions equally well.

Inability to climb grades of 8 to 12 percent at adequate speeds. Operator required for each vehicle. Small clearances, high speeds, and massive equipment combine

to produce long delays in case of malfunction, and serious injuries in event of accident.

Combustion products complicate ventilation unless vehicles are powered electrically.

Applicability

MDN's 1 through 5 can be transported by free vehicles. Excessive tire wear could be expected in the MDN 1 and 2 range due to angularity and abrasiveness of these materials. This system may not be practical for sites producing muck in the MDN 6 and 7 range because of traction and roadbed maintenance problems.

SEMICONTINUOUS SYSTEMS

Belt Conveyors


Possible installation overhead or at sides of tunnel leaves floor space for other uses.

Capacities can be increased by changing belt speed. Conveyors can go up or down slopes to 22 degrees.

E-3

■****———~——~—.. ,. . , . :

System Constraints

Supplementary transportation which must be provided for incoming materials and personnel

Delays inherent as the conveyor :.s extended from a temporary to a semipermanent installation.

Applicability

All MDN's can be tr^ isported by conveyors. Excessive belt damage and wear can be expected in the MDN 1 and 2 range because of piece size and shape unless the material is crushed prior to being placed in the system. In the MDN 6 to 7 range, through a wide range of water occurrence, considerable material will stick to the belt causing excessive cleaning problem i. In the entire MDN range it is mandatory that the water content be below the point where the muck will slip or flow on the belt or overflow the sides.

Hydraulic Pipelines


Capacities adequate for the tonnage from any tunnel in the foreseeable future.

Pipelines use very little space in the tunnel. Especially adaptable to very wet sites and to hydraulic

excavation systems. Adaptable to any grade, including vertical.

System Constraints

Capacity to handle plus 1-inch to plus 2-inch material through centrifugal pumps has not been demonstrated in field usage.

Crushing or scalping equipment for through-centrifugal pump systems, or lock-feed equipment for alternate designs may cause congestion in the near face area.

Large amounts of water are required. Required electrical power may be difficult to provide for long

tunnels in remote areas. Dewatering, recirculation, and muck disposal systems may be

elaborate. For high advance rates, methods of advancing pumping units

and pipelines must be developed. The heat load from large electrical installations may be

difficult to dissipate. System malfunctions may be hazaidous to personnel.

E-4

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Applicability

MDN 7 is best suited for pumping because of the low percentage of plus #4 material and a high fines content. Preliminary screening and/or crushing would be needed for transporting all MDN's by a through- centrifugal pump system.

Pneumatic Pipeline


Pipelines use very little space in the tunnel. Adaptable to any grada, including vertical.

System Constraints

Power requirements appear excessive. Muck must be relatively dry. Crushing or scalping equipment must be used if pieces are too

large for system. Pipe wear and maintenance may be excessive. Secondary transportation must be provided for materials and

personnel. Methods of advancing blower units and pipe must be developed. Dust at the discharge or from malfunctions may be hazardous

to personnel.

Applicability

MDN 7 is best suited for pneumatic systems because of the low percentage of plus #4 material and the high fines content. Preliminary screening and/or crushing would be needed for transporting all MDN's.

5 E-5

Documents

Holmes and Narver, Incorporated - DTIC · 2018-11-09 · r AD-751 058 INTERRELATIONSHIP OF IN-SITU ROCK PROPERTIES, EXCAVATION METHOD, AND MUCK H. F. Haller, et al Holmes and Narver,