lockwood beck, earthwork methods 1 introductionplanning.northyorkmoors.org.uk/mvm.dms/planning...

Subject Lockwood Beck, Earthworks Methods Date 11 July 2014 Job No/Ref TN-P2-CE-006 Rev 1

Lockwood Beck, Earthwork Methods

1 Introduction This note provides a summary of the possible earthworks methods and plant to be employed during construction of the intermediate shaft platform and spoil disposal mounds at the Lockwood Beck shaft site. The methodology should be read in conjunction with drawings YP-P2-CX-422 and YP-P2-CX-423.

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.

2 Phase 1, Month 1 to 3 Boundary fencing will be erected. Plant in use is expected to comprise a tractor and trailer, 6 tonne dumper and small tracked excavator.

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

In preparation for the commencement of platform construction, topsoil and subsoil will be stripped from the footprint of platform and laydown areas, car park, welfare area and borrow area and deposited in separate stockpiles (the screening bunds). The borrow area will be limited in extent to the area required to provide fill for making up levels beneath the shaft platform and haul road. Topsoil will also be stripped from the footprint of the haul road, including cuttings and embankments and placed in stockpile.

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.

Topsoil and subsoil storage mounds will be formed by end tipping the soils and grading to level using a dozer.

The shaft platform and laydown area will be made up to formation level by cut/fill with any deficit made up using material won from the borrow area (excavation depth in the borrow area will be limited so as not to extend below groundwater level). The material will be excavated using a tracked excavator, loaded directly into ATD’s and transported to the fill area where it will be tipped, spread using a dozer and compacted using a self-propelled vibrating roller.

J:\230000\234376-00\0 ARUP\0-03 GROUND ENGINEERING\0-03-08 REPORTS\MTS\TN-P2-CE-006 EARTHWORKS - LOCKWOOD BECK EARTHWORKS METHODS 2014 07 10 REV 1 .DOCX

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The shaft platform, laydown area, welfare/car park and internal haul roads will be constructed using imported granular material. The material will be imported in conventional road going tippers, deposited directly at the point of use, spread by dozer and compacted using a self-propelled vibrating roller.

Typical plant in use during this stage would be:

• 2Nr tracked excavators (2 x CAT 324) • 1Nr tracked excavator (CAT 320) • 6Nr ATD’s (Volvo A30 or similar) • 2nr Dozers (CAT D6 or similar) • 1Nr self-propelled single drum vibrating roller (Bomag BW213 or similar) • 1Nr towed vibrating roller (Bomag BW6 or similar) • 1Nr Tractor plus trailer/bowser (for moving materials around site and dust suppression)

3 Phase 2, Month 4 to 10 Construction of works to enable shaft sinking – no earthworks.

4 Phase 3, Month 11 - 18 In this stage the lower shaft is constructed, which involves sinking the shaft. The areas referenced in this phase are shown on Figure YP-P2-CX-423.

• The topsoil and subsoil from areas 3a and 3b will be stripped and placed in temporary stockpiles (3c). It is anticipated that the overall depth of soils stripped will be approximately 1.2m (average). The methods used will be as described above. The swale will also be formed around the toe of area 3a using the same plant and methods.

• The inert material from sinking the shaft will be placed in the inert spoil disposal area (3a) The spoil will be transported in ADT’s, tipped, spread using a dozer and compacted using a self-propelled vibrating roller. Spoil arising at night will be tipped temporarily in the temporary spoil storage area close to the shaft platform, from where it will be loaded into ATD’s for haulage to the disposal area during the day shift.

• The outer face of the inert area (3a) will be restored using topsoil and subsoil from the stockpiles in area 3c.

• An enhanced geological barrier will be formed in area 3b using clay excavated from the borrow pit area. The clay will be excavated using a tracked excavator, loaded into ATD’s for transport, tipped, spread using a dozer and compacted using a self-propelled vibrating roller.

• The non-hazardous, non-inert material from the shaft will be transported to the disposal area (3b) in ADT’s, placed on the spoil disposal area, spread using a dozer and compacted using a self-propelled vibrating roller to an engineering specification.

• The outer face disposal area (3b) will be restored using topsoil and subsoil from the temporary stockpile area (3c).

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


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• 1Nr tracked excavator (CAT 324 or similar) • 3Nr ATD’s (3 xVolvo A30 or similar,) • 1nr Dozer (CAT D6 or similar,) • 1Nr self-propelled single drum vibrating roller (Bomag BW213 or similar) • Tractor and bowser

5 Phase 4, Month 19 to 23 This phase includes the construction of the shaft bottom and set up TBM. Any material generated from the shaft bottom to be placed in remaining working face of the placement area.


• 1Nr tracked excavator (CAT 324 or similar) • 1Nr ATD (Volvo A30 or similar) • 1nr Dozer (CAT D6 or similar) • 1Nr self-propelled single drum vibrating roller (Bomag BW213 or similar)

6 Phase 5 Month 24 – 36 The tunnel will be driven in this stage and will produce pyritic mudstone spoil that will be deposited within the spoil disposal area. The filling will commence in the south-western part of the disposal area, progressing north-eastward. The arrangement of spoil within the placement area is shown on drawing YP-P2-CX-423.

Tunnelling will be carried out as a 24 hour operation. However spoil disposal will only be undertaken during the daytime (7am to 7pm). Spoil generated at night will be deposited in the temporary storage area adjacent to the shaft platform from where it will be loaded into ATD’s and transported to the spoil disposal area during the day shift.

Topsoil and subsoil will be stripped from area 5a and the northern half of area 5c using the plant and methods described previously and will be deposited in temporary screening bunds along the northern boundary of the site (areas 5d and 5e). It is anticipated that the overall depth of soils stripped will be approximately 1.2m (average). The swales will be formed along the north-western and south-eastern boundaries of area 5a.

Clay will be excavated from the borrow area within area 5c to a depth of approximately 1.5m and transported to area 5a to construct a low permeability basal clay layer. The clay will be excavated using a tracked excavator and transported in ATD’s. The clay will be deposited, spread in layers using a dozer and compacted using a self-propelled roller to an overall thickness of 1.0m.

Area 5a will be filled with spoil from the tunnel which will be transported in ATD’s, deposited, spread using a dozer and compacted using a self-propelled roller to an engineering specification.

As area 5a is filled area 5b will be prepared. Topsoil and subsoil will be stripped from area 5b and the southern half of area 5c using the plant and methods described previously. It is anticipated that the overall depth of soils stripped will be approximately 1.2m (average). Topsoil and subsoil from area 5b will be used to restore the outer face of area 5a. Restoration soils will be placed using loose


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tipping techniques. Surplus topsoil and subsoil from stripping area 5b and 5c will be placed in screening bunds along the northern boundary (areas 5d and 5e). The swales/ditches will be formed along the toes of the slopes along areas 5b and 5c.

The low permeability basal clay layer will be prepared in area 5b using clay won from the borrow area in area 5c using the same plant, equipment and method described above.

Area 5b will be filled with spoil from the tunnel which will be transported in ATD’s, deposited, spread using a dozer and compacted to an engineering specification using a self-propelled roller.

As filling in area 5b is completed, the final section will be restored using topsoil and subsoil taken from the screening bunds on its northern boundary (area 5d).

Area 5c is underlain by a substantial thickness of cohesive glacial till which provides a natural geological barrier, therefore no enhanced geological barrier is required. Any areas of soft clay or sand/gravel identified in the exposed formation will be excavated to a minimum depth of 1m and replaced with clay which will be won from within the footprint of area 5c using a tracked excavator, transported in ATD’s, spread by dozer and compacted in layers using a self-propelled vibrating roller to an engineering specification.

Area 5c will be filled with spoil from the tunnel which will be transported in ATD’s, deposited, spread using a dozer and compacted using a self-propelled roller to an engineering specification. Once all spoil from the tunnel has been deposited, the stone from the temporary haul road will be removed and placed within the spoil disposal area, and the attenuation pond on the eastern edge of area 5c will be formed.

On completion of filling, area 5c will be restored using topsoil and subsoil from the stockpiles in area 5e. Soils will be loaded into ATD’s using a tracked excavator, transported, deposited and placed using loose tipping techniques.


• 3Nr tracked excavators (3 x CAT 324 or similar) • 6Nr ATD’s (6 x Volvo A30 or similar) • 3nr Dozers (3 x CAT D6 or similar) • 2Nr self-propelled single drum vibrating rollers (2 x Bomag BW213 or similar) • Tractor and bowser • Grader

7 Phase 6 Month 37-39 In this stage the tunnel fit out and site restoration will be completed. The final layout and form of the site is shown on drawing YP-P2-CX-421. The temporary platform will be removed, including export of granular material off-site. The haul-road embankments, cuttings and borrow area will be reinstated to original levels. The platform material will be excavated using a tracked excavator and loaded into road going tippers for transport off-site. The temporary platform area will be reinstated using subsoil and topsoil from the stockpiles.

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


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• 1Nr tracked excavator (CAT 320 or similar) • 2Nr ATD’s (2 xVolvo A30 or similar) • 1nr Dozer (CAT D6 or similar) • Tractor and bowser

8 General Notes 1. 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.

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

3. Overall thickness of restoration soils is assumed to be 1.2m.

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.

Revision Author Checked by Approved by

0 Laura Marchant

1 A G Hornung


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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 MTS Intermediate Shaft Location

Scale at A3

Discipline

Drawing No

YP-P2-CX-422

Not to scale

Proposed Site Earthworks Lockwood BeckPhasing

© ArupDo not scale

6

5

4

3

2

1

AA3 B C D E F G

28/03/14

14/04/14

SM

SM

AG

AG

PS

PS

Drawing Staus

Issue

Rev 01

Rev 02

01

02

Job No

234376-00

20/06/14

15/08/14

SM

SM

AG

AG

PS

PS

Rev 3

Rev 4

3

4

Issue

4

N

Key:

Platform / Car Park

Drainage Ponds

Temporary Earthworks Bund

Haul Road

Site Access

Spoil

Site Clearance

Site Boundary

Extent of Works

Site Fence

Overhead Electrical Cables

Notes:• For phasing within spoil placement area, refer to

drawing YP-P2-CX-423.

PLATFORM

HAUL ROAD

SCREENING BUNDS

CAR PARK W

ELF

AR

E

LAYDOWN AREA

SPOIL

SPOIL

PHASE PERIODYPL SCHEDULE

ACTIVITY AREA OF ACTIVITY

0 Month 0 - 2 Mobilise site prep-eration contractor

-

1 Month 3 - 7 Construction of site preperation

• Form site access junction and access road.

• Site clearance.

• Strip topsoil from platform area / car park and welfare.

• Form platform, including material import.

• Form site drainage, including attenuation ponds.

• Construct haul road, including stream crossing.

• Form screening bund.

2 Month 8 - 14 Construct shaft upper

• Construction of works to enable shaft sinking.

3 Month 15 - 19 Construct shaft lower

• Sink shaft.

• Commence topsoil and subsoil strip of spoil disposal area

• Start placement of spoil within spoil area. Refer to drawing YP-P2-CX-423 for details.

4 Month 20 - 24 Construct shaft bottom andset up TBM

• Construct shaft bottom.

• Set up TBM within shaft bottom.

• Establish BES batching plant.

• Commence basal preparation for spoil disposal area.

5 Month 25 - 38 Construct tunnel • Tunnel drive.

• Place spoil within spoil placement area

• Spoil placement area works complete and restored.

6 Month 39 - 46 Complete fi t out and commissioning

• Complete fi t out.

• Site restoration.

• Removal of temporary platform and form fi nal layout (as shown on drawing YP-P2CX-421), including restoring topsoil and subsoil across the site.

Proposed Section 278 works to form access junction Overhead electrical

cables will need to be diverted as part of the works

Temporary stockpile area for material generated during night time periods

Potential borrow pit area

Spoil area attenuation pond to be constructed when haul road is removed

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 MTS Intermediate Shaft Location

Scale at A3

Discipline

Drawing No

YP-P2-CX-423

Not to scale

Proposed Site Earthworks Lockwood BeckPhasing

© ArupDo not scale

6

5

4

3

2

1

AA3 B C D E F G

28/03/14 SM AG PS

Drawing Staus

Issue

Rev 01

01

Job No

234376-00

14/04/14

20/06/14

15/08/14

SM

SM

SM

AG

AG

AG

PS

PS

PS

Rev 02

Rev 3

Rev 4

02

3

4

Issue

4

Notes:• For phasing within spoil placement area, refer to

drawing YP-P2-CX-422.

Key:

Platforms / Car Park

Drainage Ponds

Temporary Earthworks Bund

Haul Road

Site Access

non hazardous, non inert placement area

Inert spoil placement area

Site Clearance

Site Boundary

Extent of Works

Site Fence

Overhead Electrical Cables

N

Screening bunding to be provided

Non hazardous non inert fi ll: Month 25 - 30

Initial topsoil and subsoil strip 1/3 of area: Month 20. Remainder stripped: Month 25 - 27

Part restored: Month 29 - 30. Remainder restored: Month 35 - 38

Drainage outfalls to be formed

Inert material: Month 15 - 20

Initial topsoil and subsoil strip: Month 30 - 31


Topsoil and subsoil strip: Month 15 & month 25 - 28


INERT

MATERIAL

TOPSOIL

TOPSOIL

TOPSOIL

SUBSOIL

SUBSOIL

SUB

SOIL

5b5a

3a

3b

3c

3c

5c

5e

5d

5d

5e

NON HAZARDOUS, NON INERT MATERIAL

NON HAZARDOUS, NON INERT MATERIAL

Spoil area attenuation pond to be constructed when haul road is removed

Clay won for lining northern fi eld: Month 15 - 30

Borrow area

Clay for lining

Clay for lining

PHASE PERIOD YPL SCHEDULEACTIVITY (WITHIN SPOIL DEPOSITION AREA)

AREA OF ACTIVITY

QUANTITY OF MATERIAL FROM MTS SHAFT TUNNEL (BULKED)

1 Month 3 - 7 Construction of site preperation

• No works

2 Month 8 - 14 Construct shaft upper

• No works

3 Month 15 - 19 Construct shaft lower

• Strip off topsoil / subsoil under inert material footprint (3a) to temporary stockpiles (3c) as shown, providing screening bunds.

• Inert material from shaft disposed on spoil heap (3a).

• non hazardous, non inert material from shaft tobe placed in area (3b) after completion of a basal liner.

• Restoration of inert area (3a) and (3b) using topsoil and subsoilstripped and stored in temporary stockpile from area (3c).

• Initial partial strip of topsoil and subsoil from area (5a), prior to thewinter season for placement of material during February 2017.

9,814m3 inert material (701 vehicle movements)16,139m3 non hazardous, non inert material (1,153 vehicle movements)

4 Month 20 - 24 Construct shaft bottom andset up TBM

• Any material generated during this period to be put into disposalarea 3b.

• Commence topsoil strip in area (5a) and (5c) and preparation of clayliner.

5 Month 25 - 38 Construct tunnel 307,499m3 non hazardous, non inert material (21,965 vehicle movements)

6 Month 39 - 46 Complete fi t out -

5a

5b

5c

• Remaining topsoil and subsoil to be stripped from area (5a) andplaced in temporary stockpiles (5d) and (5e) to provide screening, basal liner to be provided using clay won from area (5c).

• Approximately 1/3 of non hazardous, non inert material fromtunnel drive to be placed on spoil disposal area 5a.

• Topsoil / subsoil strip from area (5b) used to restore area (5a),basal liner to be provided.

• Basal liner to be provided in area (5b) using clay won from area(5c).

• Approximately 1/3 of non hazardous, non inert material fromtunnel drive to be placed on area (5b).

• Topsoil / subsoil strip from area (5c) partially used to restorearea (5b), with remainder put into stockpile 5e.

• Remaining stockpile 5d used to restore 5b

• Approximately 1/3 of non hazardous, non inert material fromtunnel drive to be placed on area (5c).

• Temporary stockpiles (5d: topsoil / subsoil) used to restore area(5c).

Arup Chris Williams

YP-P2-CE-SCH-012234376/cw

Earthworks Material - Cut

`

` Mobilise

Construct Tunnel

Bulking Factor Quantity [m3](bulked)

Overall Earthworks Bulking Factor

Quantity [m3](bulked)

Top Soil 4,669 1 1.3 1.5 1.05 4,902 4,902 0 0 0 4,902 0

Sub Soil 11,064 1 1.6 2.0 1.1 12,170 12,170 0 0 0 12,170 0

Superf icial Soils 8,490 1 1.6 2.0 1.1 9,339 4,670 4,669 0 0 9,339 0

Restoration superf icial/ rock f or borrow pit 9,338 1 1.6 2.0 1.1 10,272 0 0 5,789 4,483 10,272 0

Top Soil 3,015 1 1.3 1.5 1.05 3,166 1,583 1,583 0 0 3,166 0

Sub Soil 6,992 1 1.6 2.0 1.1 7,691 3,846 3,846 0 0 7,691 0

Superf icial Soils 4,242 1 1.6 2.0 1.1 4,666 0 4,666 0 0 4,666 0

Restoration superf icial/ rock f or borrow pit 6,448 1 1.6 2.0 1.1 7,093 0 0 0 1,305 5,788 7,093 0

Top Soil 696 1 1.3 1.05 731 731 731 0

Sub Soil 0 1 1.6 2.0 1.1 0 0 0 0

Superf icial Soils 0 1 1.6 2.0 1.1 0 0 0 0

Top Soil 852 1 1.3 1.5 1.05 895 895 895 0

Sub Soil 0 1 1.6 2.0 1.1 0 0 0 0


Inert (No Treatment Required) 7,961 1 1.6 2.0 1.1/1.25 9,814 5,189 4,625 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9,814 0

Non hazardous, non inert 14,860 1 Retained on Site 1.6 2.0 1.15 16,134 0 567 5,189 5,189 5,189 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16,134 0

Tunnel Non hazardous, non inert 267,390 1 Retained on Site 1.6 2.0 1.15 307,499 0 0 0 0 0 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,965 21,965 21,965 307,499 -1

Top Soil 966 1 1.3 1.5 1.05 1,014 1,014 1,014 0

Sub Soil 966 1 1.6 2.0 1.1 1,063 1,063 1,063 0


Top Soil 5,168 1 1.3 1.5 1.05 5,426 2,713 2,713 5,426 0

Sub Soil 3,023 1 1.6 2.0 1.1 3,325 0 3,325 3,325 0

Superf icial Soils 2,162 1 1.6 2.0 1.1 2,378 0 2,378 2,378 0

Top Soil 1,143 1 1.3 1.5 1.05 1,200 1,200 1,200 0

Sub Soil 250 1 1.6 2.0 1.1 275 275 275 0


Top Soil 1,513 1 1.3 1.5 1.05 1,589 1,589 1,589 0

Sub Soil 1,788 1 1.6 2.0 1.1 1,967 1,967 1,967 0


Top Soil 615 1 1.3 1.5 1.05 646 646 646 0

Subsoil 753 1 1.6 2.0 1.1 828 828 828 0


Top Soil 787 1 1.3 1.5 1.05 826 826 826 0

Subsoil 588 1 1.6 2.0 1.1 647 647 647 0


Top Soil 26,270 1 1.3 1.5 1.05 27,584 6,986 0 6,896 0 0 6,896 0 6,806 27,584 -1

Sub Soil 78,809 1 1.6 2.0 1.1 86,690 21,672 0 21,672 0 0 21,673 0 21,673 86,690 0

Churned Clay 0 1 1.6 2.0 1.0 0 0 0 0 0 0 0 0 0 0 0

Top Soil 17,803 1 1.3 1.5 1.05 18,693 3,000 0 0 0 0 3,000 0 3,000 0 0 3,000 0 2,231 0 0 2,231 0 0 2,231 18,693 0

Sub Soil 53,408 1 1.6 2.0 1.1 58,749 10,000 0 0 0 0 10,000 0 10,000 0 0 10,000 0 6,251 0 0 6,249 0 0 6,249 58,749 0

Churned Clay 87,565 1 1.6 2.0 1.0 87,565 15,000 0 0 0 0 24,188 0 24,188 0 0 24,189 0 0 0 0 0 0 0 0 87,565 0

Top Soil 4,563 1 1.3 1.5 1.05 4,791 3,552 0 740 500 4,792 -1

Sub Soil 12,263 1 1.6 2.0 1.1 13,489 9,922 0 2,068 1,500 13,490 -1

Superf icial Soils 13,624 1 1.6 2.0 1.1 14,986 12,403 0 1,451 1,133 14,987 -1

Top Soil 4,417 1 1.3 1.5 1.05 4,638 4,638 4,638 0

Sub Soil 0 1 1.6 2.0 1.1 0 0 0 0

Churned Clay 0 1 1.6 2.0 1.0 0 0 0 0

0 76,101 0 0 0 0 0 21,080 4,296 3,948 500 0 0 0 0 0 0 0 3,000 0 0 0 0 0 0 0 0 0 9,986 0 9,896 0 0 9,896 0 9,037 0 0 2,231 0 0 2,231 0 0 0 0 0 076,102

0 186,894 0 0 0 0 0 26,872 7,171 5,914 1,500 0 0 0 0 0 0 0 10,000 0 0 0 0 0 0 0 0 0 31,672 0 31,672 0 0 31,673 0 27,924 0 0 6,249 0 0 6,249 0 0 0 0 0 0186,895

0 59,589 0 0 0 0 0 18,114 7,047 6,117 1,133 0 0 0 0 0 0 0 5,189 4,625 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5,789 5,788 5,788 0 0 059,590

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00

0 87,565 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00

0 323,633 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 567 5,189 5,189 5,189 0 0 0 0 0 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,965 21,965 21,965 0 0 0 0 0 0 323,633

0 733,782 0 0 0 0 0 66,065 18,514 15,979 3,133 0 0 0 0 0 0 0 33,189 5,192 5,189 5,189 5,189 0 0 0 0 0 87,810 21,964 87,720 21,964 21,964 87,722 21,964 58,925 21,964 21,964 30,444 21,965 21,965 30,445 5,789 5,788 5,788 0 0 0 733,785

0 733,782 646,220

733,782

Earthworks - Temporary Stockpile (from material generated on site)

Feature Material

Temporary topsoil stockpiles 0 0 0 0 21,080 4,296 3,948 500 0 0 0 0 0 0 0 3,000 0 0 0 0 0 0 0 0 0 9,986 0 9,896 0 0 9,896 0 9,037 0 0 2,231 0 0 2,231 0 0 0 0 0 0

Running Total Within Stockpile 0 0 0 0 16,955 21,251 25,200 25,700 25,700 25,700 25,700 25,700 25,700 25,700 25,700 28,700 28,700 28,700 28,700 21,200 21,200 21,200 21,200 21,200 21,200 31,186 31,186 34,388 34,388 34,388 37,589 37,589 46,626 33,700 33,700 29,700 29,700 29,700 25,700 24,042 14,455 0 0 0 0

Temporary Sub Soil Stockpiles 0 0 0 0 26,872 7,171 5,914 1,500 0 0 0 0 0 0 0 10,000 0 0 0 0 0 0 0 0 0 31,672 0 31,672 0 0 31,673 0 27,924 0 0 6,249 0 0 6,249 0 0 0 0 0 0

Running Total Within Stockpile 0 0 0 0 26,872 34,042 39,956 41,456 41,456 41,456 41,456 41,456 41,456 41,456 41,456 51,456 51,456 51,456 51,456 28,488 28,488 28,488 28,488 28,488 28,488 60,160 60,160 64,546 64,546 64,546 68,933 68,933 96,857 50,017 50,017 36,668 36,668 36,668 23,319 18,688 8,476 0 0 0 0

Additional Inert Material 0 0 0 0 18,114 7,047 6,117 1,133 0 0 0 0 0 0 0 5,189 4,625 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5,789 5,788 5,788 0 0 0

Running Total Within Stockpile 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0

Non Hazardous, Non Inert (Treatment Required) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 567 5,189 5,189 5,189 0 0 0 0 0 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,965 21,965 21,965 0 0 0 0 0 0


Rock Stockpile 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


Total 0 0 0 0 0 43,826 55,294 65,156 67,156 67,156 67,156 67,156 67,156 67,156 67,156 67,156 80,156 80,156 80,156 80,156 49,688 49,688 49,688 49,688 49,688 49,688 91,346 91,346 98,934 98,934 98,934 106,522 106,522 143,483 83,717 83,717 66,368 66,369 66,370 49,020 42,732 22,931 0 0 0 0

Temporary Stockpiles (material import, not generated on site)

Feature Material

Concrete 0

Grout 0

0

0

Concrete 0

Grout 0

0

0

Ty pe 1 Granular Material 0

0

Ty pe 3 Granular Material 0

0

0

0

Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Earthworks Material - Fill

`Feature Material Placed Total

Required [m3] Quantity Required [m3]

Top Soil 27,584 27,584 0 0 0 0 7,500 0 0 6,694 0 0 6,695 0 0 6,695 27,584 0

Sub Soil 104,827 104,827 0 0 0 0 22,968 0 0 27,286 0 0 27,286 0 0 27,287 104,827 0

Inert (No Treatment Required) 8,859 9,814 5,189 4,625 0 0 0 0 0 0 0 0 0 0 0 9,814 0

Non Hazardous, Non Inert (Treatment Required) 193,535 193,535 0 567 5,189 5,189 5,189 21,964 21,964 21,964 21,964 21964 21,964 21,964 21,964 1,689 193,535 0

Clay f or lining 87,565 87,565 15,000 0 0 0 24,188 0 24,188 0 24,189 0 0 87,565 0

Top Soil 18,693 18,693 6,231 0 6,231 0 0 6,231 18,693 0

Sub Soil 58,749 58,749 19,553 0 19,598 0 0 19,598 58,749 0

Inert (No Treatment Required) 0 0 0 0 0 0 0 0

Non Hazardous, Non Inert (Treatment Required) 130,098 130,098 20,275 21,964 21,964 21,964 21,964 21,964 130,095 3

Churned Clay f or lining 0 0 0 0 0 0 0 0 0 0

Top Soil 4,973 4,973 1,658 1,658 1,658 4,973 0

Sub Soil 13,892 13,892 4,631 4,631 4,631 13,892 0

Inert (No Treatment Required) 17,365 17,365 5,788 5,788 5,788 17,365 0

Non Hazardous, Non Inert (Treatment Required) 0 0 0 0 0 0 0

Churned Clay f or lining 0 0 0 0 0 0 0

Top Soil 1,164 1,164 1,164 1,164 0

Sub Soil 0 0 0 0 0

Superf icial Soils 3,355 3,355 3,355 3,355 0

Top Soil 1,537 1,537 1,537 1,537 0

Sub Soil 0 0 0 0 0


Top Soil 622 622 622 622 0

Sub Soil 0 0 0 0 0

Superf icial Soils 432 432 432 432 0

Top Soil 802 802 802 802 0

Sub Soil 0 0 0 0 0



Site Won Rock 0 0 0 0 0

Top Soil (Restoration) 15,859 15,859 0 0 0 7,929 7,930 15,859 0

Sub Soil (Restoration) 1,736 1,736 0 0 0 1,736 0 1,736 0

Superf icial Soils (Platf orm Construction) 10,272 10,272 6,739 3,533 0 0 10,272 0

Superf icial Soils (Restoration) 0 0 0 0 0 0 0 0

Top soil (restoration) 3,166 3,166 0 0 0 0 3,166 3,166 0

Sub soil (restoration) 7,691 7,691 0 0 0 3,846 3,845 7,691 0

Superf icial Soils 3,717 3,717 2,584 1,133 0 0 0 3,717 0

Top Soil (restoration) 806 806 0 0 806 806 0

Sub Soil 0 0 0 0 0 0 0

Superf icial Soils 0 0 0 0 0 0 0

Top Soil (Restoration) 895 895 0 0 0 0 895 895 0

Sub Soil 0 0 0 0 0 0 0 0 0

Superf icial Soils 308 308 308 0 0 0 0 308 0

Total 716,246 76,101 0 0 0 0 0 4,125 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7,500 0 0 0 0 0 0 0 6,694 0 0 6,695 0 0 12,926 0 6,231 0 0 6,231 1,658 9,587 14,455 0 0 0 76,101

186,895 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22,968 0 0 0 0 0 0 0 27,286 0 0 27,286 0 0 46,840 0 19,598 0 0 19,598 4,631 10,213 8,476 0 0 0 186,895

59,590 0 0 0 0 0 18,114 7,047 6,117 1,133 0 0 0 0 0 0 0 5,189 4,625 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5,788 5,788 5,788 0 0 0 59,590

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00

87,565 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15,000 0 0 0 0 0 0 0 0 0 24,188 0 24,188 0 0 24,189 0 0 0 0 0 0 0 0 0 0 0 0 0 087,565

323,633 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 567 5,189 5,189 5,189 0 0 0 0 0 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 21,964 0 0 0 0 0 0 323,630

733,784 0 0 0 0 0 22,239 7,047 6,117 1,133 0 0 0 0 0 0 0 20,189 5,192 5,189 5,189 35,657 0 0 0 0 0 46,152 21,964 80,132 21,964 21,964 80,134 21,964 21,964 81,730 21,964 47,793 21,964 21,964 47,793 12,077 25,588 28,719 0 0 0 733,781

733,784 733,781

733,784

Earthworks Material - Summary

TBM Setup

PHASE 4 PHASE 5

Spoil Disposal Area ‐ South

MONTH 41 MONTH 42 MONTH 43 MONTH 44

Construct Site Preparation

PHASE 2 PHASE 3

Construct Shaft Upper

Construct Shaft Lower

MONTH 32 MONTH 33 MONTH 34 MONTH 35 MONTH 36 MONTH 37 MONTH 38 MONTH 39 MONTH 40

Construct Shaft Bottom

MONTH 24 MONTH 25 MONTH 26 MONTH 27 MONTH 28 MONTH 29 MONTH 30 MONTH 31

Spoil Placement Area - South

MONTH 15 MONTH 16 MONTH 17 MONTH 18 MONTH 19 MONTH 20 MONTH 21 MONTH 22 MONTH 23

MTSShaf t

Platforms

Road

York Potash - Earthworks Strategy Volumes - Lockwood Beck

Site Preparation (Main Shaft Platform)

Stockpiles (Material Generated On-Site)

Site Won Rock

Access Road

Stockpiles (Material Generated Off-Site, Material Import)

Import Material

Spoil Placement Area - North

Haul Road Haul Road

Churned Clay for Lining

Total Earthworks

Total SubSoil

Total

Borrow Pit

Spoil Disposal Area ‐ North

Shaf t Sinking

MTS

Temporary Storage Bunds

Pond B

Men and Materials Head Frame Chamber

Mineral Shaft Head Frame Chamber

Sink Men and Materials Shaft

PHASE 1

Doves Nest Farm - Minehead

Minehead Site - Phasing

MTS

Access Road

Car Park

Of f ice and Welf are

MONTH -2 MONTH -1 MONTH 1 MONTH 2 MONTH 3 MONTH 4 MONTH 5 MONTH 6 MONTH 7 MONTH 8 MONTH 9 MONTH 10 MONTH 11 MONTH 12

Bunds

Attenuation Ponds

Borrow Pit

Bunds

Design Check (Quanity

Generated - Total)

Total Non Hazardous, Non Inert Pyritic Mudstone

Total Topsoil

Total SubSoil

Total Superficial Soils / Inert Material

Site Won Rock

Pond B

Churned Clay for Lining

Main Shaft Platform

Pond C

Pond D

Pond G

Laydown Areas

Office and Welfare

Car Park

Ponds

Total Topsoil

Earthworks

Total Non Hazardous Pyritic Mudstone

Site Won Rock

15 August 2014

Main Shaf t Platf om

Men and Materials Head Frame Chamber

Mineral Shaft Head Frame Chamber

Sink Mineral shaft

Upper Intake and Exhaust Ventilation

MTS Lockwood Beck - Earthworks Phasing

Issue-Rev 3

Site Preperation

Area Feature Material Quantity [m3](unbulked)

Source Information

Construct Site Preparation

Mobilise Shaft Contractor

Construct Shaft Upper

Construct Shaft Lower

Retained on Site

Early works

Design Check (Quanity

Generated - Total)

Total

Men and Materials Shaft - Off Shaft Production

Mineral Shaft - Off Shaft Production

Mobilse Site Preparation Contractor

Lay down Area

NotesCompacted Density

(Mg/m3)Uncompacted

Density (Mg/m3)

Exported Off Site

Mineral Shaft - Off Shaft Production

Mobilise Shaft Contractor

Fit out test and commision

Construct Shaft Bottom

TBM Setup

Construct Tunnel

Fit out test and commision

Pond C

Pond D

Pond G

MONTH 13 MONTH 14

PHASE 6PHASE 3 PHASE 4 PHASE 5

Sink Mineral shaft

Men and Materials Shaft - Off Shaft Production

Sink Men and Materials Shaft

Upper Intake and Exhaust Ventilation

PHASE 1 PHASE 2

Total Earthworks

Haul Road

Total

Total Superficial Soils

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YP-P2-CE-SCH-012_Earthworks Strategy Volumes_Lockwood Beck Rev02.xlsx : Earthworks Spreadsheet

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