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792241 NDRECAMBE BAY FEASIBILITY STUDY: SUB-SURFACE INVESTIGATIONS Knight, D J Q J Engng Geol, VlO, N3, 1977, P303-320
792242
Reports investigations carried out in connec- tion with a plan for constructing a barrage across Morecambe Bay to store run-off from the Lake District. Results are discussed in terms of the stratigraphy of the Bay sub-sur- face, and also the properties of the principal strata (two sand layers, clays and silts). Par- ticular re~erence is made to the in situ and lab permeability tests, to methods of undistur- bed sampling of sand and to the layered micro- structure of the clays and silts with its ef- fect on their shear strer~d~h.
N~?fHODS OF INVESTIGATION IN ENGIN~ING GEOLOGY Q J Engng Geol, VIO, N3, 1977, I:'339-352
792243
Presents summaries of ii papers from the regio- nal meeting of the Engineering Group of the Ge- ological Societyj held in Exeter on 13-16 Sept 1976. ~luese papers which are not due for publi- cation in full, deal with various aspects of site investigation. The topics covered are: route location for the North Devon link road, investigation of potential bridge sites at Bid~ford, evaluation of satellite imagery and multispectral aerial photogral~hY, early stages of site investigation, site investigations for the M5 in Devon, prediction of road construc- tion problems due to mining, rotary core dril- ling, drilling for discontinttities in soil, location of alr-filled cavities, back-analysis techniques, and use of photogrammetry to in- vestigate face failure.
SITE INVESTIGATION ASImECTS OF THE RIVER MEDWAY CABLE TUNNELS Dumbleton, M J; Cooper, J N; Fowler, P P Transport and Road Research Lab supplementary
report 451, 1978, 45P
The site investigation allowed the route of the 1.7 km twin subaqueous power cable tunr~is to be chosen, and their depths to be selected to allow construction in the London Clay. Bore- holes and marine seismic reflection surveys de- term/ned the depths of the river bed, gravel and London Clay surfaces, and Dutch sou/~dlngs gave furthe~ information for shaft sinking on shore. During construction exploratory probing ahead from the face was used. After an inflow of water, sand amd silt into one tunnel, a further marine seimnic reflection survey was used to obtain more detailed information on conditions ahead of faces.
7922~4
Avail : TRRL, Old Wokingham Road, Crowthorne, Berks, UK
SITE INVESTIGATION ASPECTS OF PART OF %~HE TYNESIDE SOLWfH BANK IN~CEPIDR SEWER
D~nbleton, M J; Keddle, A R; Priest, S D Transport ard Road Research Lab supplementary
report 454, 1978, 22P
The 3kin length of sewer construction examined was through made ground, glacial deposits and variable Coal Measures rocks using hand and shield tunnelling, heading construction and open trench methods. The borehole investigation gave a good inilcatlon of the range of drift materials and rock present. The variable nat-
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ure of both drift and rock, with rockhead at a variable level and with variable del~hs of weathering, prevented detailed prediction of local tunr~lling cor~itions and called for flexible methods of working. Probing ahead from the face was used when small-scale mine workings were met during construction.
Avail: TRBL, Old Wokingham Road, Crowthorne, Berks, UK
Planning, geotechnical and structural mapping
G~X~ECHNICAL ASFECTS OF ROLrfE LOCATION SIN/DES FOR M~ NORTH OF CARDIFF
Newbery, J; Subramanism, A S Q J E~gng Geol, VIO, N4, 1977 , P423-4A1
0onsiders the geotechnical input for the four stages in a route location study, illustrated by reference to the Castleton to Coryton sec- tion of the M4 moto~way. The stages are defined as: (1) establishment of alternative routes (geological setting required), (2) comparative assessment (desk geological stilly and site in- vestigation), (3) preferred routs selection (geological aspects compared), and (4) design (detailed study requiring precise alignments).
ASSESSMENt AND EN~ALUATION OF GEOTECHNICAL RE- SOURCES IN URBAN OR REGIONAL ENVIRO~MENTS
Grant, K; Finlayson, A A Engng Geol, V12, N3, Sept 1978, P219-293
A method for terrain classification based upon geology, geomorphology, pedology and botany is proposed as a basis for listing of the required geotechmlcal properties. The system proposed is hierarchical in nature with each mender of each class composed of a limited constant re- petitive association Of members of the preced- ing class. A system for n~rical nomenclature of the terrain classes is proposed so that in- formation collected will be compatible with processing in a computer medium. Terrain class- ification is achieved by a process of aerial photograph interpretation and field work. Using this system, assessment and evaluation of geo- technical resources can be conducted in three stages for: (i) feasibility studie~, (2) plan- nlng and (3) construction. 50 refs.
AERIAL NAPPING IN ENGINEERING GEOLOGY (IN RUSS-
Churinov, M V (Editor) Tr Vses Nauch-lssled Inst Gidrogeol Inzh Geol,
V85, 1975, 56P
Core recovery, logging, probing, boring and sampling
792248 INCLINED DRILLING FOR THE KIEI~ER TUNNELS Coats, D J; Carterj P G; Smlthj I M Q J Engng Geol, V10, N3, 1977, P195-205
~ertlcal and near vertical Joints can have an important effect on tunnelling operations in rock. This paper describes an inclined drilling programme to study Jolnting along nearly 5 km of tunnel within the Kielder Water Scheme. Drilling problems are discussed, logging methods
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are described amd the results are giVen. It is concluded that inclined drilling cam have an importaAut role in tur~el site investigations. Auth.
792249 APPLICATION OF AIR-FLUSH ROTARY-I~CUSSION TECH- NIQUES IN SITE INVESTIGATION
Horner, P C; Sherrell, F W Q J Er~ Geol, VlO, N3, 1977, P207-221
This involves t h e drilling of boreholes under controlled comditlons, measuring t h e rate of penetration, observing the drilling character- istics and sampling the drilling flushings, so that the rock type may be identified ard some aspects of its geotechnical bahaviour interpreted. Applications ani limitations of the technique are discussed, with case studies in Devoz~ amd Corr~all I including the location of voids and of geological boundaries.
792250 INTEHBOREHOLE ACOUSTIC MEASURES IN SITE IN- VESTIGATION
Grainger, P; McCann, D M Q J Engng ~oi, VIO, N3, 1977, P2~I-255
The experimental procedure for this technique is described. The instrumentation used includes an energy source in the form of an enclosed electrical sparker. Two case histories s from the Dincrwic hydro-electric scheme in North Wales and from Whatley Quarry near Frome in Somerset, ere presented to show the nature of the interpretation process and the quality of geological data that can be achieved. At Dino- rwic the technique was used to study dam foun- dation comditions, and at Whatley to locate water-bearing fissures and cavities.
7~251 MICROPALAEO~FIOLOGICAL INVESTIGATIONS "FOR THE SITE OF THE THAMES BARRIER, LONDON
CarteD, D J; Hart, M B Q J Engng Geol, V10, N3, 1977, P321-338
The Thames Barrier, nG~ urzler constl~action between Woolwich an~ Sllvertown, will protect central London from tidal flooding and will con- sist of a saries of rotatable gates supported by concrete piers, the majority of which are founded in the chalk b~Irock. The study repor- ted here was to provide a stratigraphic corre- lation of the upper chalk across the site, to locate the position of faults and of boundaries between undisturbed in situ chalk and disturbed (solifluction or frost-shattered) chalk. Core samples from 68 bore~holes ~ere examined for faunal distribution and the data interpreted geologically.
792252
Photographic techniques
OPERATIONAL APPLICATION OF R~I~OTE SENSING TECH- NOLOGY FOR PREDICTING MINE GROUND HAZARD AREAS
Rinkenb erger, R Proc 19th US Symposi~n on Rock Mechanics,
Stateline, Nevada, i-3 May 1978, VI, P391- 399. Publ Reno: Ur~Iversity of Nevada, 1978
Describes the use of satellite and aircraft imagery for evaluating mine ground stability. The mine sites have included coal, metal, and nonmetal open pit and underground operations in various geologic environments. Underground and surface investigations were conducted to
co~firm llmear orientations and density. Frac- ture orientations observed as li~ars o n imag- ery have been eor~irmed at mime levels over 2000 ~eet deep and in areas of extensive un- consolidated overburden. Ground stability in mines more than 50 miles a/tort has been affec- ted by fractures represented by the same en echelon satellite linear trend.
Geophysical techniques
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792254
ENGINEERING GEOPHYSICS IN SObTH AFRICA BUll AssOc Engr~ Geol, V15, N1, Nov 1978, 144P
Presents a selection of 9 papers from a Sympo- sium on Geophysics in Civil Engineering, held in Pretoria, on 18-19 september, 1973. The to- pics covered are: fundamentals of the seismic method, multichannel seismic equipment for site investigation, the continuous seismic method, a case history of a seiamic survey, applications of ultrasonic test methods and of the electri- cal resistivity method (includimg a bibliography of applications in civil engineering), grourd- water exploration by geoelectrical methods, and nuclear gauges.
GEOPHYSICAL DETECPION OF DISUSED MINESHAFTS IN THE ~WCAS~ UPON TYNE AREA, NORTH-EAST ENGLAND
Dearman, W R; Baynesj F J; Pearson, R Q J Engr~ Geol, V10, N3, 1977, P257-269
The ground conditions associated with old mine- shafts are reviewed and the two geophysical me- thetis used for detection, the resistivity and the magnetic method are discussed briefly. Two case histories concerned with an industrial estate and t h e proposed line for a main sewer in tunnel are described in detail. The magnetic method was used in both cases.
792255 LOCATION OF ZONES OF CONCENTRATION OF CENrRES OF SEISMOACOUSTIC IMPULSES (IN POLISH)
Kornowaaki, J Przegl Gorn, V34, N2, Feb 1978, P72-79
Reports tests carried out in a seam of a Polish mine. Geophones were installed 40 to 100m ahead of the working face and the wave velocity resu- lting from controlled blasting was determined. Impulse centres were located from differences in the times of arrival of subsequent impulses, using the known velocity of wave propagation. With sharp impulses the location error was less than 10m.
792256 EI~CTEC~GNETIC TECHNIQUE FOR LOCATING BORE- HOLES
Sacks, H K US~M RI 8302, 1978, l~P
The Bureau of Mines has developed hardware for electromagnetic detection and location of min- ers trapped in undergroumd coal mines. This report describes a technique for using the de- veloped equilznent for locating uncased bore- holes underground. Results of several field and laboratory experiments ere described.
792257 FURT~ ANALYTICAL INVESTIGATIONS OF ELECTRO-
MAGNETIC FIELDS IN MINE ENVIROI~N~S Wait, J R; Hill, D A; Seidel, D B US~M OFR 86-78, 1 Feb 1978, 273P