Earthwork Methods - Introductionplanning.northyorkmoors.org.uk/MVM.DMS/Planning Application/811000...This note provides a summary of the possible earthworks methods and plant to be

Subject Earthworks Methods_Revision 01

Date 13 May 2014 Job No/Ref TN-P2-CE-001

J:\230000\234376-00\0 ARUP\0-01 CIVIL\0-01-06 RECORD COPIES\2014-05-13 MINEHEAD EARTHWORKS PHASING NARRATIVE\TN-P2-CE-001-REV 01 EARTHWORKS - OUTLINE DESCRIPTION OF ASSUMED WORKING METHOD 2014-05-13.DOCX

Page 1 of 8Arup | F0.13

Earthwork Methods - Introduction

This note provides a summary of the possible earthworks methods and plant to be employed during construction of the main shaft platform, process area platform and screening mounds at the Dove’s Nest Farm. The methodology should be read in conjunction with the phasing plans YP-P2-CX-50 to YP-P2-CX-60 and sketches YP-P2-CX-61 to YP-P2-CX-63.

It should be noted that whilst an assessment of the potential methods and plant requirements has been made, the actual quantity and type of plant used will depend on the working methods of, and plant available to, the selected contractor. The descriptions below should only be regarded as indicative of how the works may be executed and the type of plant likely to be involved, not as a definitive method statement.

1 Phase 1, Month 2

In preparation for the commencement of platform construction, topsoil and subsoil will be stripped from the footprint of Bunds A and B and deposited in separate stockpiles close to the bunds. Topsoil will also be stripped from the footprint of the haul road and attenuation ponds and placed in stockpile. Swales to be formed around Bunds A and B.

It is anticipated that topsoil will be stripped using a dozer to doze the topsoil into heaps which will be loaded into all terrain dumpers (ATD’s) using a tracked excavator. Subsoil is expected to be stripped using the excavator to load directly into ATD’s. A dozer will be used to manage the stockpiles.

The existing subsoil, topsoil, inert material and imported granular fill (6F2) will be loaded into ATD’s using tracked excavators for transport to the locations shown on drawing YP-P2-CX70.

Topsoil and subsoil storage mounds will be formed by end tipping the soils and grading to level using a dozer. Fill placed into bunds A and B will be spread in layers using a dozer and compacted using a towed vibrating roller. Granular material used to construct the haul road will be spread in layers using a dozer and compacted using a self-propelled vibrating roller.

Construction of the attenuation ponds will be commenced. Plant used in constructing the ponds will include a tracked excavator, ATD’s, a dozer and towed vibrating roller.

Typical plant in use during this stage would be:

3Nr tracked excavators (CAT 320 or similar)

6Nr ATD’s (Volvo A30 or similar)

3nr Dozers (CAT D6 or similar)

2Nr towed vibrating roller (Bomag BW6 or similar)

1Nr self propelled single drum vibrating roller (Bomag BW213 or similar)





In addition to earthworks tree clearance will commence for the southern access and bund D, and existing farm buildings will be demolished.

It is anticipated that additional plant used in these site clearance activities will include:

1 Nr hydraulic platform

1 Nr forestry harvester

1Nr forestry forwarder

Tractor and trailer

Construction of the recharge borehole will also commence using a rotary water well drilling rig, e.g. Dando Watertec 24.

2 Phase 1, Month 3

Construction of drainage attenuation ponds will be completed using a tracked excavator loading directly to ATD’s and swales/ ditches will be formed along the eastern and northern site boundary to direct run-off from areas to be stripped of soils into the ponds.

Topsoil and subsoil will be stripped from the footprint of Bund F and predominantly placed in stockpile using the same techniques as described in Section 1 above. A proportion of the soils will be transported to bund A for use in restoration.

Topsoil and subsoil stripping beneath the footprint of Bund F will commence from the north-eastern corner. Initially topsoil will be dozed into a bund along the eastern boundary and eastern part of the northern boundary. Topsoil that cannot be accommodated here will be loaded into ATD’s using a tracked excavator and transported to stockpile. Subsoil will be loaded directly into ATD’s using a tracked excavator and transported to stockpile. Stockpiles will be managed by a dozer. Temporary ditches will be formed around the toe of temporary storage mounds to control run-off.

Once sufficient area has been stripped, construction of Bund F will commence using superficial soils excavated from the main shaft platform. The soils will be spread in layers using a dozer and compacted using a self-propelled vibrating roller.

Bulk excavation of superficial soils from the main shaft platform will be undertaken using tracked excavators loading directly into ATD’s. It is anticipated that two excavators and four ATD’s would be employed on this task. Where excavation below rockhead cannot be achieved using tracked excavators, the rock will be ripped using a heavy dozer equipped with a ripper. This will be confined to the western half of the shaft platform. Rock will be loaded into ATD’s and transported to a crusher which will be located within the shaft platform area. Crushed rock will be loaded into ATD’s using a tracked excavator and used to make up levels beneath the eastern half of the main shaft platform where it will be spread in layers by dozer and compacted using a self-propelled vibrating roller.

Once sufficient area of Bund F has been completer to the required level, topsoil and subsoil stripping will commence for Bund D, the soils being transported directly to Bund F for use in restoration. Subsoil will be spread using a low ground pressure dozer; topsoil will by placed by tracked excavator by loose tipping.

Bund B will be completed using superficial soils excavated from the main shaft platform. Bunds A and B will be restored by spreading subsoil and topsoil. Soils will be excavated from stockpile by





tracked excavator and transported in ATD’s. Subsoil will be spread using a low ground pressure dozer; topsoil will by placed by tracked excavator by loose tipping.

Construction of the recharge borehole will continue.


4Nr tracked excavators (3 x CAT 320 or similar, 1 x CAT336)

8Nr ATD’s (4 xVolvo A30 or similar, 4 x Volvo A40 or similar)

4nr Dozers (3 x CAT D6 or similar, 1 x CATD9 or similar)



1Nr motor grader (CAT 120M2 or similar)

1Nr crusher, e.g Sandvik QJ 330.

Tractor and trailer

3 Phase 1, Month 4

Excavation of superficial soils from the main shaft platform will continue using the plant and methods described above. Where excavation below rockhead cannot be achieved using tracked excavators, the rock will be ripped using a heavy dozer equipped with a ripper. This will be confined to the western half of the shaft platform. Rock will be loaded into ATD’s and transported to a crusher which will be located within the shaft platform area. Crushed rock will be loaded into ATD’s using a tracked excavator and used to make up levels beneath the eastern half of the main shaft platform where it will be spread in layers by dozer and compacted using a self-propelled vibrating roller.

Construction of Bund F will continue using arisings from the main shaft platform. As the height of the bund increases, successive lifts will be commenced by depositing material to form an attenuation/screening bund around the eastern and northern margin behind which the arisings from the shaft platform will be spread and compacted, as illustrated on drawings YP-P2-CX-61 to YP-P2-CX-63.

As areas of the Bund F are completed to the required level, subsoil and topsoil will be taken from stockpile using a tracked excavator, loaded into ATD's and transported to Bund F for use in restoration. In addition soil stripping for Bund E will commence using the techniques described previously, the soils being transported directly to Bund F for use in restoration. Subsoil will be spread using a low ground pressure dozer; topsoil will by placed by tracked excavator by loose tipping.

Construction of Bund D will commence using arisings from the main shaft platform. The methods for excavation transport and deposition will be as described previously.

Topsoil will be taken from stockpile using a tracked excavator, loaded into ATD's and transported to the ponds where it will be spread using a dozer.

Construction of the recharge well will be completed and construction of headworks will be commenced.






4Nr tracked excavators (3 xCAT 320 or similar, 1 x CAT336)

8Nr ATD’s (4 xVolvo A30 or similar, 4 x Volvo A40 or similar)

4nr Dozers (3 x CAT D6 or similar, 1 x CATD9 or similar)





Tractor and trailer

4 Phase 1, Month 5-6

Topsoil and subsoil from the laydown area will be excavated and transported to temporary stockpile using tracked excavators and ATD’s as described above. The laydown area will be prepared by spreading crushed stone. The stone will be transported from stockpile using ATD's, spread using a dozer and compacted using a self propelled vibrating roller.

The completed eastern part of Bund D will be restored using subsoil and topsoil taken from the MTS shaft laydown areas, from stockpile and from the ventilation exhaust shaft platform area. Soil placement will be as described previously.

Construction of Bund E will commence using arisings from the construction of the laydown area. As the eastern slope of Bund E is completed to level, it will be restored using subsoil and topsoil taken from the MTS shaft laydown areas and from stockpile.

Construction of the groundwater interceptor and reinfiltration layer will be undertaken on the main shaft platform. Imported drainage media will be spread using a dozer and compacted using a self propelled vibrating roller.

On completion of the groundwater drainage and recharge layer a geosynthetic layer will be placed using a tracked excavator fitted with a spreader bar to lift and transport the geosynthetic rolls. The geosynthetic will be covered immediately after placing with a layer of crushed rock which will be spread by dozer and compacted using a self-propelled vibrating roller. The surface water collector drain will be constructed using a tracked excavator to form a trench, place pipe sections and place backfill materials.

Surface water drainage will be constructed. A tracked excavator will be employed to excavate trenches, stacking the arisings at the side of the excavation. A tractor and trailer will be used to transport pipe sections. Pipe bed and surround materials will be transported using a 6 tonne dumper and placed using the tracked excavator. Excavated material will be placed back into the trenches using the tracked excavator and compacted using a trench roller. Surplus spoil will be spread using a dozer and compacted using a self-propelled vibrating roller.


4Nr tracked excavators (3 xCAT 320 or similar)

10Nr ATD’s (6 xVolvo A30 or similar 4 x Volvo A40 or similar)





1Nr 6 tonne dumper

3nr Dozers (3 x CAT D6 or similar)

1Nr self-propelled single drum vibrating roller (Bomag BW213 or similar)

1 Nr trench roller (Bomag BMP8500 or similar)


1 Nr tractor and trailer

5 Phase 2 Month 6 – 17

Topsoil and subsoil will be stripped from the central part of Bund E and transported to temporary stockpile using the methods described previously.

Trees and topsoil will be stripped from the temporary stockpiling area adjacent to the welfare facility using the methods described previously. Topsoil will be stockpiled adjacent to the temporary storage area.

The basal area of the Bund D pyritic mudstone storage area will be prepared by excavating and re-laying the top 1m of the glacial till. The clay will be excavated using a tracked excavator, transported in ATD's and replaced in layers compacted using a self propelled vibrating sheepsfoot roller.

Refer to YPL summary for excavation and construction methods for the box cuts, headframe chambers and shafts.

Suitable rock from the excavations will be transported to a processing area on the process plant platform where it will be crushed and stockpiled for re-use. Plant in use in the rock processing area is expected to include 1 tracked excavator and 1 crusher. The excavator will be used to load the crusher and to load the crushed rock into ATD’s for distribution around the site.

Other excavated material will be loaded into ATD’s and transported either to temporary storage or to Bunds D and E, where it will be spread using a dozer and compacted using a self-propelled vibrating roller.

Topsoil and subsoil will be stripped from the southern access road and used to restore Bund E. Soil stripping and placement will be undertaken using the methods described previously. The haul road will be constructed using crushed rock from stockpile. haul road construction material will be loaded using a tracked excavator, transported in ATD's spread using a dozer and compacted using a self propelled vibrating roller.

Restoration of Bund E will be completed towards the end of the period using topsoil and subsoil taken from stockpile using the same plant and methods described previously.

Typical plant in use during this stage (in addition to plant within the headframe and box cut excavations) would be:


14Nr ATD’s (10 xVolvo A30 or similar 4 xVolvo A40 or similar)


2Nr self-propelled single drum vibrating roller (Bomag BW213 or similar)







Tractor and trailer


The central part of bund F will be prepared for the deposit of pyritic mudstone. Subsoil temporarily stored in this area will be removed using tracked excavator and ATD's and used to restore the western area of Bund D and the ventilation exhaust shaft platform where it will be spread using a dozer. The basal area will be prepared by excavating and re-laying the top 1m of the glacial till. The clay will be excavated using a tracked excavator, transported in ATD's spread in layers using a dozer and compacted using a self propelled vibrating sheepsfoot roller.

The temporary non-hazardous non-inert storage area will be prepared by re-engineering a 1m thick layer of clay to form a basal liner using similar methods to those described above.

Spoil from the main shafts will be transported in ATD’s to temporary store or to Bunds D and F where it will be spread using a dozer and compacted using a self propelled vibrating roller.

Restoration of the western part of Bund D will commence using subsoil and topsoil taken from temporary stockpile. All working methods will be as described previously. It is noted that the extent to which this is completed will be dependent upon weather and ground conditions during the second half of this period.

Typical plant in use during this stage (in addition to plant within the shaft excavations) would be:




2Nr self-propelled single drum vibrating rollers (Bomag BW213 or similar)


Tractor and trailer


The western area of Bund F and the first quarter of Bund C will be prepared for the deposition of pyritic mudstone. Topsoil and subsoil will be stripped and transported to temporary stockpile using the methods described previously, following which the basal areas will be prepared by excavating and re-laying the top 1m of the glacial till. The clay will be excavated using a tracked excavator, transported in ATD's and replaced in layers compacted using a self propelled vibrating sheepsfoot roller.

Restoration of Bund D will be completed once weather and ground conditions permit using a tracked excavator to load subsoil/topsoil from stockpile into ATD’s for transport, subsoil being spread using a low ground pressure dozer and topsoil placed by tracked excavator.

Spoil from the shafts will continue to be transported in ATD’s to Bund F and Bund C where it will be spread using a dozer and compacted using a self propelled vibrating roller.





The north-western part of Bund F will be completely filled and restored during this period. All working methods as described previously.

Topsoil and subsoil will be stripped from the footprint of the Welfare Area and transported to stockpile using the plant and methods described previously. The welfare area construction platform will be constructed using crushed rock from stockpile in the process. The crushed rock will be loaded using a tracked excavator, transported in ATD’s, spread using a dozer and compacted using a self-propelled vibrating roller.

Non-hazardous, non-inert waste will be transported in ATD’s from the main shaft excavations to the temporary storage area where it will be spread, graded and compacted using a dozer towed vibrating roller. Non-hazardous non-inert material for disposal off-site will be loaded from the stockpile into road-going 4-axle tippers using a tracked excavator


3Nr tracked excavators (3 x CAT 320 or similar)




1Nr towed vibrating roller e.g. Bomag BW6.


Tractor and trailer

8 Phase 5 Month 33 - 40

The footprint of Bund C will be continue to be prepared in stages for the deposition of pyritic mudstone. Topsoil and subsoil will be stripped and transported to temporary stockpile using the methods described previously, following which the basal areas will be prepared by excavating and re-laying the top 1m of the glacial till. The clay will be excavated using a tracked excavator, transported in ATD's and replaced in layers compacted using a self propelled vibrating sheepsfoot roller.

Spoil from the shafts will continue to be hauled in ATD's to Bund C where it will be spread using a dozer and compacted using a self propelled roller.

Restoration of Bund C will commence using subsoil and topsoil taken from stockpile and placed using the plant and methods described previously.

Non-hazardous non-inert material for disposal off-site will be loaded from the stockpile into road-going 4-axle tippers using a tracked excavator



8Nr ATD’s (6 xVolvo A30 or similar)







1Nr towed vibrating roller e.g. Bomag BW6.

Tractor and trailer

9 Phase 6 Month 41 onward

Inert material will be taken from temporary stockpile and transported to complete Bunds G and H. The material will be loaded using a tracked excavator, transported in ATD's, spread using a dozer and compacted using a self propelled vibrating roller.

As bunds G and H are completed to the required levels, they will be restored using subsoil and topsoil taken from temporary stockpiles using the same plant and methods described previously.

Restoration of Bund C will be completed using subsoil and topsoil taken from stockpile and placed using the plant and methods described previously.

Non-hazardous non-inert material for disposal off-site will be loaded from the stockpile into road-going 4-axle tippers using a tracked excavator .

The temporary inert material storage area will be restored using topsoil from temporary stockpile using the same plant and methods described previously.



6Nr ATD’s (6 xVolvo A30 or similar)

2nr Dozer (CAT D6 or similar)


Tractor and trailer

10 General Notes

1. Drainage attenuation ponds and swales around the eastern and northern site boundary to be formed at commencement of early works.

2. Where temporary storage mounds are used for storage of topsoil, subsoil or other arisings, temporary ditches will be formed around the toe of the mounds to control run-off.

3. Placing of restoration soils will be limited to suitable seasons when the soils are in a dry, friable condition.

4. When restoration soils are being placed on the areas of the mounds containing pyritic mudstone, a geocomposite drainage layer will be placed beneath the sub-soil. It is anticipated that the geocomposite will be deployed by hand, with a tractor and trailer used to transport rolls and a tracked excavator to lift rolls into position prior to deployment.

Admiral House, Rose Wharf78 East Street, Leeds, LS9 8EETel: +44 (0)113 2428498 Fax: +44 (0)113 2428573www.arup.com

Client

York Potash Ltd

Issue Date By Chkd Appd

Job Title

York Potash Proposed Minehead Site

Scale at A3

Discipline

Job No

230972-00Drawing No

YP-P2-CX-070

Not to scale

Proposed Site Earthworks MTS Phasing StrategyPhase 1 - Month 2February 2015

© ArupDo not scale

6

5

4

3

2

1

AA3 B C D E F G

13/03/14

28/03/14

11/04/14

SM

SM

SM

AG

AG

AG

PS

PS

PS

Drawing Staus

Issue

Rev 01

Rev 02

Rev 03

02

03

Issue

03

N Key:

Topsoil / subsoil strip

Temporary subsoil storage bund

Temporary topsoil bund

Temporary non hazardous, non inert bund

Temporary inert bund

Restoration complete

Ongoing earthworks

Temporary Platform

Access Road Construction

Total capacity

Quantity in bund

Topsoil

Subsoil

Inert material

Other

Number of loads

40,000m3

18,812m3

(537)

Notes:

» Form noise / screening bundsA and B following topsoil / subsoil strip

» Bund A complete except for top soiling / subsoiling to be undertaken during month 3

» Bund B construction commenced

» Bund F commence topsoil strip withinarea of temporary subsoil storage bund

» Existing imported 6F2aggregate forming the temporary platforms to bere-used to create the haul road formation.

» Other site clearance worksincluding demolition of farm buildings and tree clearance

» Partial strip of topsoil from Bund C area

» Temporary surface waterdrainage will need to be provided during construction until the permanent surface water attenuation ponds are constructed

» Refer to the Landscape Architects landscaping proposals for the location of access roads leading to the attenuation ponds

» All existing springs / dischargeswithin the earthworks footprint are to be permanently drained

» The number of loads assumes a vehiclewith a payload of 28 tonnes

Topsoil21,153m3

Topsoil3,615m3

3,615m3

Subsoil7,819m3

7,817m3

Strip topsoil / subsoilStrip topsoil / subsoil

Strip topsoil / subsoil

Strip topsoil / subsoil

Subsoil17,398m3

Subsoil36,649m3

36,649m3

Tree clearance

Demolition

Demolition

Tree clearance

BUND B45,802m3

12,474m3

BUND A43,372m3

28,913m3

BUND D

BUND E

BUND F

12,927m3 (632)

7,261m3 (519)

5,000m3 (268)

3,226m3 (173)

10,137m3

(724)

12,474m3 (891)

4,312m3 (293)

2,482m3

(169)

1,066m3 (62)

5,147m3 (368)

62m3 (4)

Form access

road

3,303m3

(180)

3,338m3

(239)33,311m3

(2,383)

28,913m3

(2,065)

2,487m3

(139)7,810m3

(559)

Existing 6F2 import forming existing platforms to be re-used for access road construction

Proposed men and materials drift portal location, works start during phase 2

BUND C

01

Topsoil from pond area retained for re-use within pond construction

Existing power cable to be diverted


Potential ecology relocation between month 2 and month 12

Topsoil1,401m3

Topsoil3,303m3

3,303m3

Topsoil3,498m3

Strip topsoil, subsoil & inert material


Client

York Potash Ltd


Scale at A3

Discipline

Job No

230972-00Drawing No

YP-P2-CX-071

Not to scale

Proposed Site Earthworks MTS Phasing StrategyPhase 1 - Month 3March 2015

© ArupDo not scale

6

5

4

3

2

1

AA3 B C D E F G

Drawing Staus

Issue

Rev 01

13/03/14

Job Title


28/03/14 SM AG PS

Rev 02

02

11/04/14 SM AG PS

Rev 03

03

Issue

03

N

Notes: » Bund A and B complete

» Bund F - ongoing topsoiland subsoil strip and start bund formation from north eastern corner of the site. Towards end of peroid start placing restoration subsoil and topsoil

» Ongoing formation of drainage attenuation ponds

» Create temporary topsoil and subsoilstorage bund within the outline of the future Bund C area


SM AG PS01

Key:







Ongoing earthworks

Temporary Platform


Total capacity

Quantity in bund

Topsoil

Subsoil

Inert material

Other

Number of loads

40,000m3

18,812m3

(537)


Form drainage attenuation ponds



Excavate soft soils, store on site and condition for use in Bund F construction

Permanent drainage to be provided to drain an existing spring / discharge

Permanent drainage to be provided to drain wet area

Form Access RoadBUND E

BUND C

BUND F244,243m3

82,423m3

BUND D194,286m3

0m3

1,066m3 (62)

2,936m3 (210) 2,041m3 (146)

Soft s

oils

17,6

00m

3

14,589m3

(1,042)

3,615m3

(194)

7,817m3

(559)

Topsoil3,615m3

0m3

Subsoil7,819m3

0m3

BUND A43,372m3

43,372m3

BUND B45,802m3

45,802m3

Subsoil36,649m3

36,649m3

Platform

Topsoil16,468m3

Subsoil3,344m3

Subsoil20,216m3

16,878m3 (1,205)

4,319m3 (232)

13,169m3 (926)

5,879m3 (315)

4,685m3

(251)

47,335m3 (3,381)

1,087m3 (59)

3,025m3 (216)

4,061m3 (218)3,338m3 (239)

14,054m3

(1,004)

(5(5(5(5

Topsoil1,401m3

374m3

Topsoil11,006m3

11,006m3

Topsoil3,498m3

1,218m3

Topsoil3,303m3

3,303m3


Client

York Potash Ltd


Scale at A3

Discipline

Job No

230972-00Drawing No

YP-P2-CX-072Issue

Drawing Staus

Not to scale

Proposed Site Earthworks MTS Phasing StrategyPhase 1 - Month 4April 2015

© ArupDo not scale

6

5

4

3

2

1

AA3 B C D E F G

SM AG PS01

Drawing Staus

Issue

Rev 01

Job Title


28/03/14 SM AG PS

Rev 02

02

11/04/14 SM AG PS

Rev 03

03

Issue

03

N

Notes: » The number of loads assumes a vehiclewith a payload of 28 tonnes

Key:







Ongoing earthworks

Temporary Platform


Total capacity

Quantity in bund

Topsoil

Subsoil

Inert material

Other

Number of loads

40,000m3

18,812m3

(537)Topsoil3

0m3

BUND BBUND A

Platform & EarthworksLaydown Area

BUND C

49,407m3 (3,529)

1,360m3 (73)

6,906m3 (494)

16,793m3 (1,200)

1,218m3 (66)

653m3 (35) 76m3 (4)

44m3 (3)

942m3 (51)

146m3 (11)

14,398m3 (1,029)


BUND F244,243m3

112,018m3

BUND D194,286m3

49,407m3

BUND E75,815m3

14,398m3

Subsoil36,649m3

36,649m3

2,936m3 (210)

374m3 (21)

2,041m3 (146)

1,087m3 (59)

3,303m3 (181)

Topsoil16,468m3

Subsoil3,344m3

Topsoil1,027m3

0m3

Subsoil3,423m3

Topsoil10,233m3


Topsoil3,498m3

0m3

13/03/14


Client

York Potash Ltd


Scale at A3

Discipline

Job No

230972-00Drawing No

YP-P2-CX-073

Not to scale

Proposed Site Earthworks MTS Phasing StrategyPhase 1 - Month 5 - 6May - June 2015

© ArupDo not scale

6

5

4

3

2

1

AA3 B C D E F G

01 SM AG PS

Drawing Staus

Issue

Rev 01

Job Title


28/03/14 SM AG PS

Rev 02

02

11/04/14 SM AG PS

Rev 03

03

Issue

03

N

Notes: » Finish profi ling the laydown area

» Complete main shaft platform to leveland undertake drainage works to platform and laydown area


» Topsoil and subsoil strip of main shaftplatform laydown area and exhaust ventilation shaft platform, including installation of drainage

Key:







Ongoing earthworks

Temporary Platform


Total capacity

Quantity in bund

Topsoil

Subsoil

Inert material

Other

Number of loads

40,000m3

18,812m3

(537)

13/03/14

BUND BBUND A

Hardstanding area to be formed for ventilation exhaust shaft construction

Groundwater reinfi ltration provision to be constructed beneath the main shaft platform and platform drainage installed

Laydown Area 9,042m3 (646)

3,843m3 (249)

634m3 (46)

3,423m3 (245)

5,765m3 (309)

3,509m3 (188)

4,585m3 (378)

4,930m3 (353)

4,414m3 (315)

4,786m3 (342)

5,353m3

(287)

16,803m3

(1,200)

1,609m3 (64)

959m3 (52)

5,000m3 (268)

6,181m3 (442)

1,570m3 (85)

BUND F244,243m3

112,018m3

Subsoil36,649m3

36,649m3

BUND C Platform

Topsoil30,959m3

Subsoil26,328m3

BUND D194,286m3

72,978m3

BUND E83,826m3

26,906m3


Subsoil0m3

Topsoil0m3

8,819m3 (630)


Client

York Potash Ltd


Scale at A3

Discipline

Job No

230972-00Drawing No

YP-P2-CX-074

Not to scale

Proposed Site Earthworks MTS Phasing StrategyPhase 2 - Month 7 - 17July 2015 - May 2016

© ArupDo not scale

6

5

4

3

2

1

AA3 B C D E F G

01 SM AG PS13/03/14

Job Title


28/03/14 SM AG PS

Rev 02

02

11/04/14 SM AG PS

Rev 03

03

Issue

03

N

Notes: » Commence head frame chamber, boxcut and drift construction, (unsuitable rock to be placed within temporary stockpile)

» Useable rock to be processed andstockpiled for future construction use

» Drift box cut works commenced andcompleted during this phase


» Pyritic mudstone waste to be placed inBund D

Key:







Ongoing earthworks

Temporary Platform


Total capacity

Quantity in bund

Topsoil

Subsoil

Inert material

Other

Number of loads

40,000m3

18,812m3

(537)

Drawing Staus

Issue

Rev 01

Head frame chambers & associated ventilation shaft construction

Proposed men and materials drift portal construction. Construction works commence and are complete during phase 2

Potential construction laydown area for works associated with the box cut, including potential temporary spoil storage area

Vegetation clearance to be followed by top soil strip. (Assume this occurs after month 12)

Rock to stockpile 42,655m3

40,4

84m

3 (2,8

92)

Box cut

BUND BBUND A

BUND C

Processed rock to access road and welfare platform

BUND F244,243m3

112,018m3

Subsoil36,649m3

36,649m3

Second phase of access road construction

Laydown Area

MTS

1,907m3 (102)

451m3 (24)

1,624m3 (87)

5,016m3 (269)

4,872m3 (348)

13,169m3 (941)

6,324m3 (452)

7,180m3 (513)

Clay churned

for lining

2,130m3 (114)

6,675m3 (477)

Inert to access road

10,294m3

Pyritic m

udstone

15,642m3 (1,118)

Topsoil34,039m3

Topsoil5,016m3

Subsoil43,513m3

BUND D194,286m3

88,620m3

BUND E83,826m3

83,826m3

81,269m3

Documents

Earthwork Methods - Introductionplanning.northyorkmoors.org.uk/MVM.DMS/Planning Application/811000...This note provides a summary of the possible earthworks methods and plant to be