rpt_scope_study_rope_changing_rb4_rjs_20100125 - rev2

Project No. 169409505 January 25, 2010

PREPARED FOR Potash Corporation of Saskatchewan Inc.

Attention: Doug Beattie, P. Eng.

Chief Mine Engineer

CONCERNING: PCS Allan EPCM Underground Expansion Project

Shaft 2 Trade-off Study for Rope and Skip Changing

PREPARED BY: Stantec Engineering Limited

200 – 147 McIntyre Street West North Bay, Ontario P1B 2Y5

Canada

PCS ALLAN EPCM UNDERGROUND EXPANSION PROJECT SHAFT 2 TRADE-OFF STUDY FOR

ROPE AND SKIP CHANGING

REVISION NOTES

Revision Date Description Originator

A 11-03-09 Document Initiated Klaus Schuttler Richard Saccany

A1 11-23-09 Issued for Internal Review Klaus Schuttler Richard Saccany

B 12-03-09 Issued for December Project Review Klaus Schuttler Richard Saccany

B1 12-04-09 Re-Issued for Internal Review Klaus Schuttler Richard Saccany

B2 12-23-09 Comments Incorporated Klaus Schuttler

B3 01-15-10 Comments Incorporated Richard Saccany

B4 01-25-10 Issued for Client Review Richard Saccany

0 Issued for Information

REVISION APPROVAL

Revision Designation Reviewer Date Signature

B4 Originator Richard Saccany / Klaus Schuttler 01-25-10 Signature not Required

B3 Q/A Q/C Manager Steve Boyd 01-15-10 Comments on File

B1 Hoist Plant Engineer Peter Brokenshire 12-08-09 Comments on File

B3 Project Manager Richard Saccany 01-15-10 Comments on File

B3 Engineering Manager Herb Mullins 01-15-10 Comments on File

B1 Mechanical Lead Engineer Carlo Valente N/A

B1 Engineering Manager Herb Mullins N/A

B1 Peer Reviewer John Gilbert N/A

B4 Client Review Doug Beattie

Stantec Engineering Limited 200 – 147 McIntyre Street West North Bay, Ontario P1B 2Y5 Canada Tel: (705) 494-8255 Fax: (705) 474-2652

January 25, 2010

Doug Beattie, Chief Mine Engineer Potash Corporation of Saskatchewan, Inc. Allan Mine Allan, Saskatchewan S0K 0C0 Regarding: Potash Corporation of Saskatchewan, Allan Mine

EPCM Underground Expansion Project Shaft 2 Trade-off Study for Rope and Skip Changing Dear Doug; This letter concerns the accompanying Stantec Engineering Limited (Stantec) report titled, Shaft 2 Trade-off Study for Rope and Skip Changing, prepared for Potash Corporation of Saskatchewan’s Allan Mine (PCSA). This report presents results of scoping level studies performed to determine preferred means for the changing, and in certain cases installing, of the following Shaft 2 hoisting plant equipment: 1. Head ropes, 2. Tail ropes, 3. Guide Ropes, and 4. Skips Having reviewed this report in January 2010, PCSA directed Stantec on 14 January as follows: 1. The inclusion of a clamping and lifting device (CLD) and friction winch have been internally

recommended; 2. The acquisition and installation of the CLD and friction winch are not expected to be carried

out until 2015, earliest; 3. Stantec is to configure engineering and designs for the Underground Expansion Project for

inclusion of the CLD and friction winch. The Project facilities thus expected to be affected are a. Site layout, b. Headframe, and c. Collar house

4. Stantec is to state how to get the necessary equipment information to carry out immediately the associated required civil / structural designs such that future CLD and friction winch rope changing features will be accommodated; and

5. Stantec is to assume use of the single winch option for 2011 hoisting plant changeover and subsequent rope and skip changing and maintenance requirements until the CLD, friction winch and associated infrastructure are acquired and installed.

Stantec Engineering Limited 200 – 147 McIntyre Street West North Bay, Ontario P1B 2Y5 Canada Tel: (705) 494-8255 Fax: (705) 474-2652

Stantec thanks PCSA for the opportunity to prepare this study and looks forward to continuance of work on this subject. Sincerely, Stantec Engineering Limited

Richard Saccany Project Manager

cc: Larry Long, Phil Gauer, Phil LePage, Mike Tomtene and Justin Boehm, PCSA; and Peter Brokenshire, Steve Boyd, Carlo Valente, Julian Fisher, Mike Wilson and Herb Mullins, Stantec

PCS ALLAN EPCM UNDERGROUND EXPANSION PROJECT SHAFT 2 TRADE-OFF STUDY FOR

ROPE AND SKIP CHANGING

Potash Corporation of Saskatchewan PCS Allan EPCM Underground Expansion Project rpt_scope_study_rope_changing_rb4_rjs_20100125.doc 169409505

Table of Contents

1.0 INTRODUCTION.............................................................................................................. 1–1 1.1 Background .......................................................................................................... 1–1 1.2 Option Identification.............................................................................................. 1–1 1.3 Trade-off Study Content ....................................................................................... 1–1 1.4 Disposition of this Study ....................................................................................... 1–2 1.5 Single Winch Option............................................................................................. 1–2 1.6 Friction Winch Option ........................................................................................... 1–3

2.0 CONCLUSIONS............................................................................................................... 2–1

3.0 ASSUMPTIONS ............................................................................................................... 3–1

4.0 EXCLUSIONS .................................................................................................................. 4–1

5.0 FILTERING CRITERIA..................................................................................................... 5–1 5.1 Fixed Issues ......................................................................................................... 5–1 5.2 Must Haves .......................................................................................................... 5–2 5.3 Nice to Haves ....................................................................................................... 5–2

6.0 COST ESTIMATES.......................................................................................................... 6–1 6.1 Estimate Basis...................................................................................................... 6–1 6.2 Estimate Accuracy................................................................................................ 6–1 6.3 Capital Cost.......................................................................................................... 6–1

7.0 SCHEDULES ................................................................................................................... 7–1

Appendices A Logic for Selecting Preferred Roping Options B Equipment List for Preferred Options C PCS Allan Rope Handling Scoping Study Estimate D Single Winch Option – (photographs, etc.) E Friction Winch Option – (photographs, etc.) F Rope and Conveyance Changing Methods

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rpt_scope_study_rope_changing_rb4_rjs_20100125.doc

1.0 INTRODUCTION

1.1 Background

Beginning from 20 May 2009, and continuing intermittently to present, representatives of Potash Corporation of Saskatchewan’s, Allan Mine (PCSA) and Stantec Engineering Limited (Stantec) have discussed options for changing of ropes and skips at Shaft 2. By e-mail, dated 14 August 2008, PCSA requested “…better clarification on rope changing without the clamping and lifting device (CLD) and friction winches”.

1.2 Option Identification

In this trade-off study, the application of sinking-type single rope winches in the rope and skip changing process is referred to as the Single Winch Option. The multi-rope friction winch, together with the clamping and lifting device (CLD), in the application of rope and skip changing, is referred to as the Friction Winch Option. This option includes the CLD as an essential accessory for multi- rope friction winch operation. The CLD would also be useful in conjunction with the Single Winch Option, but was not included as it not a “must have” for this option.

1.3 Trade-off Study Content

This Shaft 2 trade-off study documents a scoping level presentation on the subjects of rope and skips changing. The presentation includes a Conclusion, Section 2.0; Filtering Criteria, Section 5.0; Estimates of Capital Costs, Section 6.0; Schedules, Section 7.0; Logic for Selecting Preferred Roping Options, Appendix A; and sketches and narratives describing rope changing methods, Appendix F.

This study presents Single and Friction Winch options as follows:

1. Initial head rope, tail rope and skip removal during surface change-over;

2. Installation of head ropes, tail ropes and skips following surface change-over;

3. Removal and re-installation of guide ropes;

4. Future head and tail rope changes; and

5. Changing of skips.

In this study, the practicality of the change method, the availability of infrastructure and compliance with filtering criteria were considered.

1–2


1.4 Disposition of this Study

In the main section of this study immediately following, Single Winch and Friction Winch Options are identified under the heading, Conclusion. In this study, no specific favor is given to either Single Winch Option or Friction Winch Option. Favor is not given because of the following:

1. The significance of “opportunity costs” (revenue lost as a result of production stoppage estimated in December 2008 as $1 M per day) was not specifically considered in this study.

2. Additionally, PCSA has stated its intention to consider “sharing” the Friction Winch Option, specifically the friction winch itself, with other PCS potash operations. With respect to this intention, Stantec notes that sharing of equipment also appears practical for the Single Winch Option.

3. Also, some assumptions, based on ”Current Information” rather than Final Conditions, have resulted in the Friction Winch Option being precluded from some roping applications.

It is Stantec’s intention to not finalize this study until direction, respecting equipment sharing and “opportunity costs” is given to Stantec by PCSA and also until more certainty exists with regards to “Type of Tail Ropes” (flat vs. round) and “Infrastructure Availability South of the Headframe” (Impact of conveyor gallery modifications on available space).

1.5 Single Winch Option

The Single-Winch Option for the changing and maintenance of head ropes, tail ropes, guide ropes and skips is equipped as follows:

1. Two single drum “round rope” winches at surface for rope removal prior to surface change-over, changing of guide ropes, installation of new head ropes and for future head rope changing;

2. One single drum “flat rope” winch at surface for lowering of tail ropes after surface change-over and for future tail rope changing;

3. One “round rope” Reeler at Potash Level for pulling existing tail ropes and guide ropes from the shaft;

4. One “flat rope” Reeler at Potash Level for pulling out of flat tail ropes being lowered from surface; and

5. Ancillary equipment, such as deflection sheaves, clamping beams, secondary winches/tuggers, rope clamps etc.

1–3


Note: As an alternative to the rope Reeler’s at Potash Level, retention of the current method of pulling out ropes with a tractor / LHD is not favored, but could be considered

Typical equipment for the Single Winch Option is portrayed in Appendix D, Figure 1, Figure 2, and Figure 3.

The Single Winch Option methods for removal, installation, and replacement of guide ropes, head ropes, tail ropes, and skips are exhibited in Appendix F by the following Sketches:

• 210ASK 50, 51 and 52 – Existing Head and Tail Rope Removal;

• 210ASK 60 and 61 – Installation of New Head and Tail Ropes;

• 210ASK 70 and 71 – Flat Tail Rope Changing;

• 210ASK 85 and 86 – Single Head Rope Changing; and

• 210ASK 90, 91 and 92 – Guide Rope Removal and Installation.

The estimated capital cost of the Single Winch Option is $6,603,000, which includes provision for Saskatchewan Provincial Sales Tax (PST) and Contingencies (see Appendix C – PCS Allan Rope Handling Scoping Study Estimate). This estimate provides for all requirements of initial head, tail and guide rope removal, re-installation of head, tail and guide ropes after the surface change over, as well as future head and tail rope replacement.

1.6 Friction Winch Option

The Friction Winch Option for the changing of head ropes, tail ropes, guide ropes and skips is equipped as follows:

1. One friction winch at surface for changing of head ropes;

2. One CLD device in headframe for rope clamping;

3. Four single-rope Reeler’s at surface for use in conjunction with friction winch;

4. One single drum “round rope” winch at surface for rope removal prior to surface change-over, changing of guide ropes and installation of new head ropes after surface change-over;

5. One single drum “flat tail rope” winch at surface for lowering of tail ropes;

6. One “round rope” Reeler at Potash Level for pulling out existing tail ropes and guide ropes;

7. One “flat rope” Reeler at Potash Level for pulling out flat tail ropes being lowered from surface; and

1–4


8. Ancillary equipment, such as deflection sheaves, clamping beams, secondary winches / tuggers, rope clamps etc.

Typical Friction Winch, CLD and associated equipment are illustrated in Appendix E, Figure 1, Figure 2, Figure 3 and Figure 4.

The Friction Winch Option method of use for the changing of head ropes and skips is presented Appendix G through the following sketches:

• 210ASK80, 81 and 82

The estimated capital cost of the Friction Winch Option is $ 16,270,000, which includes provision for PST and Contingencies (see Appendix C – PCS Allan Rope Handling Scoping Study Estimate). This estimate provides for all requirements of initial head, tail and guide rope removal; installation of head, tail and guide ropes after the surface change over; and future head and tail rope changes.

2–1


2.0 CONCLUSIONS

Suitability of “Single Winch” and “Friction Winch” options for various roping applications, as summarized at high level in the Logic for Selecting Preferred Roping Option, Appendix A, are shown below.

Single Winch Option

Suitable for:

• Initial Removal of Head and Tail Ropes, as well as Skips, prior to Surface Change-Over;

• Initial Installation of Head and Tail Ropes, as well as Skips, following Surface Change Over;

• Removal and Re-Installation of Guide Ropes;

• Future Head Rope Changing; and

• Future Tail Rope Changing.

Note: A second winch configured and located specifically for installation / changing of flat tail ropes is necessary.

Friction Winch Option

Suitable for:

• Future Head Rope Changing

Trade study findings presently indicate that the Friction Winch Option is precluded from activities other than head rope changing because of

(a) Uncertainties of infrastructure availability for the equipment (permanent location at North Collar house not yet available and temporary space, south of headframe not confirmed due to pending conveyor gallery modifications).

(b) For changing of Flat Tail Ropes dedicated “Flat Rope Winches” are required. Tail ropes generally have a longer life and are not changed as frequently as head ropes. In addition tail ropes are not necessarily changed as a complete set. A dedicated multi-rope tail rope changing facility (cost difference $ 4M) might therefore not be warranted.

More certainty as to infrastructure availability, as well as a change to round tail ropes would expand application of this option to rope re-installation after the surface change-over and also to future tail rope changing.

3–1


3.0 ASSUMPTIONS

1. Power source

Power source requirements have not been fully established. At this stage it is anticipated that larger winches will be electrically driven, whereas smaller auxiliary winches could be either electric, hydraulic or compressed air driven.

It is understood that, regardless of the power source, the primary power will be from the electric grid. (air compressors and hydraulic power packs all consume electric power). The production hoist will be used for certain roping activities, but will not be running under full load. Electric power for the operation of roping equipment should therefore not be a concern.

2. Operating Costs

Operating costs such as Labour and Electric Power were excluded, since, at scoping study level, they are considered materially smaller costs relative to capital equipment costs.

3. Equipment Installation Costs

Initial installation costs for roping equipment were excluded. (Verify per RJS)

4. Rope Selection

Roping Equipment Requirements and Roping Procedures are based on the following ropes:

Head Ropes: 4 x 56 mm dia. - 15.12 kg / m

Tail Ropes: 3 x Flat Ropes 178 mm x 35 mm – 20 kg / m

Alternatively 61 mm diameter stranded ropes – 15.3 kg / m (not considered in this study)

Guide ropes: 8 x 52 mm dia. – 14.74 kg / m

5. Skip weight:

Empty skip (including bail and rope attachments): 79,344 lbs

(Verify per RJS)

Skip bail: 44,432 lbs

6. Winch rope pull requirements are based on the above rope and skip specifications.

7. Guide rope tensioning: Cheese weights at shaft bottom

Note: Guide rope tensioning requires further investigation as the length of new cheese weights is a concern.

3–2


8. Equipment Locations (Temporary and Permanent)

It is assumed that the permanent locations for rope changing equipment (North Collar House) will not be available at the time of rope removal, prior to the surface shut-down, nor will this site be complete for initial roping up, following the surface shut-down. This assumption is dictated by the current plan to start construction of the North Collar House after the surface shutdown commences (the existing HVAC unit is required to operate until use of the present production hoist is stopped).

9. Single Winch Equipment

For options requiring the “Round Rope” Winch, two winches are included in the estimate. Two winches will reduce time loss associated with reeling and unreeling.

10. Estimated Cost for Friction Winch

The two friction winch suppliers considered are SIEMAG GmbH (SIEMAG) and OLKO – Maschinentechnik GmbH (OLKO). Figures used in the cost estimate are based on the SIEMAG unit at a cost of $5,250,000. An alternative budget price, obtained from OLKO quotes approximately $ 3,336,000 ex Works Germany, shipping and transport cost still to be added. The OLKO quote requires further investigation.

4–1


4.0 EXCLUSIONS

The following considerations are excluded from this study:

1. Use of the friction winch and CLD to remove existing hoist ropes because the current production hoist is in the way.

2. Change-over, demolition and modifications to the existing Shaft 2 headframe and removal of the friction hoist.

3. Any provision of equipment, means and methods to mitigate the fact that, when Shaft 2 is “down” for rope and skip changing, Allan will not have two independent exits from the underground.

4. Major renovation of the Shaft 2 collar and sub collar for conversion to rope clamping at sub collar elevation (minus 8 ft - 8 in) was not fully investigated. Provision for certain modifications was, however, included in the estimate.

5. Skip removal and installation methods, although included in the scope of this Trade-Off Study, have not been fully investigated. Further work is required.

6. Provision for separate lifting device(s) for removing and installation of skips was excluded from this estimate.

7. Roping methods as shown in Appendix F are indicative only. These methods require further review and development.

5–1


5.0 FILTERING CRITERIA

The criteria listed below were generated and then used to “filter” the total of 19 original Single and Friction Winch Options and focus on preferred options.

Fixed Issues prevail upon all rope and skip changing options without regard to equipment used in that option or the configuration in which such equipment is used.

“Must Haves” are criteria that PCSA and Stantec consider representative of methodology, equipment, equipment configurations and other factors and features that will characterize the changing options.

“Nice to Haves” are criteria “good to get” to improve safety for a changing option.

5.1 Fixed Issues

1. Safety First

2. Options for rope and skip changing comply with regulations and standards of the Province of Saskatchewan.

3. The opportunity cost associated with lost production is approximately $1 M / day.

4. For sharing of equipment with other PCS mines, rope changing must be scheduled and coordinated. All mines cannot use changing equipment at the same time.

5. The heating, ventilation and air conditioning unit (HVAC) for the existing production hoist will stay in operation until Shaft 2 hoisting plant change-over commences.

6. On the assumption that the North Collar House will not be available at the time of initial changeover, all initial rope changing will be accomplished from the South.

7. The existing warm water tank associated with shaft washing must be relocated.

8. Existing collar “brown field” configurations and conditions will dictate construction in association with foundations and utility ducts.

9. All surface change-over related removal of existing guide ropes, head ropes, tail ropes and conveyances will be undertaken with roping equipment as shown in the equipment list.

10. Roping activities for hoisting plant change-over, as well as future rope changes are to be untaken from surface where practical. Removal of old ropes from underground should only be considered in cases where significant time savings are achieved without compromising safety.

11. The anticipated size and configuration of the current and future south conveyor transfer galleries presently appear to preclude placement of wheel–bogey-mounted-

5–2


type SIEMAG and OLKO friction winches at the south side of the headframe. Due to shorter length and overall size, a skid- mounted unit may be accommodated. More detail of the conveyor gallery, to be provided by AMEC will clarify this matter.

5.2 Must Haves

1. Tail rope clamping from removable beams across shaft below collar elevation (positioned at freeze collar or suspended from collar).

2. All winch foundation positions (frames), without exception, will be “permanent”. Winches may be removable to storage or transfer to another mine.

3. A CLD, at an approximate cost of $1.6 M, is a “must have” with a friction (multi-rope) winch regardless of SIEMAG or OLKO model.

4. A CLD is not required with the Single Winch Option; however, it would be of great benefit in single winch roping activities, as well in future attachment and skip change outs.

5. Equipment will be enclosed in either permanent or temporary buildings to protect persons from climatic elements during rope changing operations.

6. Minimal collar and headgear modifications (condition of existing collar concrete must be restored). Note: It is understood that PCSA may remove and replace the collar rails and this would be an opportune time to carry out sub collar modifications.

7. The production hoist will be used at reduced power for certain single rope changes.

8. Full power must however be available at the hoist house.

9. A separate lifting device (additional to single or friction winch) is necessary to assist in skip installation and removal.

5.3 Nice to Haves

1. Friction winch and CLD.

2. (Permanent) tail rope clamping facility with moveable beams across shaft at sub collar elevation, made possible through modifications to freeze collar.

3. Ability to share roping equipment and crews among mines.

4. “Permanent” as opposed to a temporary or “fit-for-purpose” building enclosure.

5. Maximum efficiency in use.

6. Maximum flexibility in scheduling.

6–1


6.0 COST ESTIMATES

6.1 Estimate Basis

The Control Budget/Baseline Cost Basis Statement July 2009 has been referenced for preparation of this trade-off study.

6.2 Estimate Accuracy

Stantec considers the accuracy of the capital and operating cost estimates for the Single Winch and Friction Winch Options to be -10 to +40%.

6.3 Capital Cost

The following Capital Cost Summary applies:

• Figures under “All Roping Activities” relate to equipment required for Initial Head, Tail and Guide Rope Removal, prior to surface shutdown, Reinstallation of Head, Tail and Guide Ropes, after the surface shutdown, as well as future Head and Tail Rope Replacement,

• Figures under “Future Rope Changing only” relate to equipment required for Future Head and Tail Rope Replacement.

6–2


Capital Cost Summary - $ (000)

All Roping Activities Future Rope Changing only

Description Single Winch Option


Single Winch Option


Winches and Reelers 3,090 8,135 2,950 7,370

Attachments, Suspension Glands and Clamps

30 56 12 46

Sheaves, Pulleys and Blocks 657 1,182 503 803

Steel Work 446 498 288 347

Lifting Equipment, Suspension Chains and Slings

300 293 138 131

Rope Clamping, Lifting and Jacking

100 1,650 100 1,650

Lifting and Rigging Equipment 35 35 35 35

Electrical Capital Purchase 254 353 254 353

General 119 194 94 169

Sub Total 5,031 12,396 4,374 10,904

PST 5% 252 620 219 545

Contingencies 25% 1,320 3,254 1,148 2,863

TOTAL $6,603 $16,270 $5,741 $14,312

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7.0 SCHEDULES

The following schedules are prepared for comparative purposes only. The schedules were prepared based upon Stantec experiences with similarly configured and equipped rope changing plants. See Appendix F sketches for reference.

Existing Head and Tail Rope Removal - Single Rope Sketch 210ASK50, 51 and 52

Summary Schedule

Activity Hours Start with north skip at Potash Level and south skip near collar Allowance for preparation after production hoist stoppage 8.0 Set up for simultaneous removal of head rope # 1 and tail rope # 1 10.3 Remove head rope # 1 from surface and tail rope # 1 from Potash Level 3.4 Remove head ropes / tail ropes # 2 and # 3 26.7 Remove north skip box at surface and last tail rope at Potash Level 6.1 Remove north skip bail and last head rope 10.0 Remove south skip, feed remaining head rope onto Reeler and remove roping equipment 7.7 Total 72.2

Guide Rope Changing

Sketch 210ASK90, 91 and 92 Summary Schedule

Activity Hours Remove Cheese Weights 38.0 Move guide rope top anchor point to 1819 level (to prepare for surface change-over) 8.8 Headframe Change-Over Move anchor point to collar / sub collar elevation 12.6 Reel off new rope from rope winch, attach to old rope and prepare for lowering 4.1 Lower old rope / new rope using rope winch, whilst pulling out old rope at Potash Level 2.1 Lower rope from Potash Level to shaft bottom, thereafter clamp at permanent position in headframe 4.9 Install rope # 2 11.1 Install rope # 3 11.1 Install rope # 4 11.1 Install rope # 5 11.1 Install rope # 6 11.1 Install rope # 7 11.1 Install rope # 8 11.1 Install Cheese Weights 193.7 Total 341.7

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Installation of New Head and Tail Ropes – Single Rope

Sketch 210ASK50, 60 and 61 Summary Schedule

Activity Hours Allowance for preparation after surface change-over 4.0 Lower tail rope # 1 to Potash Level with crosshead, clamp at collar and Potash Level 12.8 Feed head rope # 1 over hoist drum into north compartment, install north skip bail and connect rope to skip 8.4 Lower head rope # 1 and north skip bail to Potash Level with production hoist and rope winch 3.7 Install south skip, cut head rope to length at collar and connect to skip 12.0 Install set # 2 tail and head ropes 26.9 Install set # 3 tail and head ropes 26.9 Install head rope # 4 and skip boxes 11.4 Total 106.1

Head Rope Changing (Friction Winch - All Four Ropes Concurrently)

Sketch 210ASK80 to 82 Summary Schedule

Activity Hours Start with north skip at collar and south skip at bottom Remove north skip box 2.8 Detach old head ropes from north skip, feed ends over hoist drum, through friction winch and connect to Reelers 4.3 Clamp south tail ropes at Potash Level and detach ropes from skip 4.1 Remove old head ropes, using friction winch (pulling up south skip) 2.0 Chair south skip at collar, detach head ropes and reel rest of head ropes onto Reelers 5.0 Exchange old / new rope reels, feed new ropes over hoist drum into south compartment and attach 7.2 Unchair south skip and install new head ropes using friction winch (lowering south skip) 2.5 Connect tail ropes to south skip at Potash Level and unclamp. Also cut head ropes to length at collar level and attach to north skip 6.7 Unchair north skip, re-install skip box and remove roping equipment 2.9 Total 37.5

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Single Head Rope Changing (Single Winch - Four Ropes in Succession) Sketch 210ASK85 and 86

Summary Schedule Activity Hours Start with north skip at collar and south skip at bottom Head rope # 1 Set up for detaching head rope # 1 from north skip 5.4 Detach rope from north skip and feed onto rope winch # 1 4.7 Remove old rope using hoist and rope winch (pulling up south skip) 4.5 Install new head rope using hoist and rope winch (lowering south skip), cut to length at collar and attach to north skip 6.6 Change head rope # 2 21.1 Change head rope # 3 21.1 Change head rope # 4 21.1 Total 84.5

Flat Tail Rope Changing Sketch 210ASK70 to 71

Summary Schedule Activity Hours Start with north skip at collar and south skip at bottom Set up, disconnect tail rope from south skip at Potash Level and connect rope end to Reeler 2.5 Clamp north tail rope at collar, detach from skip and connect to new tail rope end (new tail rope on tail rope winch) 4.1 Unclamp old tail rope at collar and lower together with new rope using tail rope winch, whilst pulling out old tail rope at Potash Level 4.4 Clamp rope at collar, cut to length and connect to south skip. Also connect rope to north skip at Potash Level 3.3 Unclamp tail rope at collar and remove roping equipment 2.7 Total 16.9

Activity Name OriginalDuration

PCS Allan - Rope Changing 343h

Existing Head and Tail Rope Removal 72h

Existing Head and Tail Rope Removal-Summary 72hAllowance for Preparation after Production Hoist Stoppage 8hSet up for Simultaneous Removal of #1 Head Rope and #1Tail Rope 10hRemove #1 Head Rope ( at surface ) and #1Tail Rope ( at Potash Level ) 3hRemove 2nd and 3rd Head and Tail Ropes 27hRemove North Skip Box ( surface ) and 4th Tail Rope ( U/G ) 6hRemove North Skip Bail and 4th Head Rope 10hRemove South Skip, Feed Remaining Head Rope onto Reeler, Remove Roping Equipment 8h

Guide Rope Changing 343h

Guide Rope Changing-Summary 343hRemove Cheese Weights 38hMove Guide Rope Top Anchor Point to 1819 level 9hHeadframe Changeover 0hMove Anchor point from 1819L to Sub Collar Elevation 13hAttach New Rope to Old Rope for Lowering 4hLower New Rope from Surface and Remove Old Rope ( at Potash Level ) 2hChair Rope at Headframe Permanent Anchor Point 5hInstall Guide Rope # 2 11hInstall Guide Rope # 3 11hInstall Guide Rope # 4 11hInstall Guide Rope # 5 11hInstall Guide Rope # 6 11hInstall Guide Rope # 7 11hInstall Guide Rope # 8 11hInstall Cheese Weights 194h

Install New Head and Tail Ropes 106h

Install New Head and Tail Ropes-Summary 106hAllowance for preparation after Surface Changeover 4hLower Tail Rope No 1 U/G Clamp at Collar and U/G 13hFeed Head Rope No 1 over Drum and Install North Skip Bail 8hLower Head Rope No 1 and North Skip U/G 4hInstall South Skip and Connect Headrope Attachment 12hInstall # 2 Head and Tail Ropes 27hInstall # 3 Head and Tail Ropes 27hInstall Skip Boxes 11h

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18Day

PCS Allan - Rope Changing PCS Allan-Rope Changing Durations Draft for Discussion

Activity Name OriginalDuration

Head Rope Changing ( Friction Winch - 4 Ropes Concurrently) 38h

Head Rope Changing -Summary Friction Winch Option 38hRemove North Skip Box 3hDetach Ropes from North Skip and Attach to Reelers 4hClamp south Tail Ropes at Potash Level and detach ropes from Skip 4hRemove old Head ropes using Friction Winch ( pulling up South skip ) 2hChair South skip at Collar, detach Head ropes and reel rest of Head ropes onto reelers 5hExhange old/new rope reels, feed new Ropes over drum into south compartment and attach South skip 7hUnchair South Skip, install new Head ropes using Friction Winch ( lowering South skip ) 3hConnect tail ropes to South skip, cut Head ropes to length at Collar and attach to North Skip 7hUnchair North Skip, re-install skip box and remove roping equipment 3h

Single Head Rope Changing ( Single Winch - 4 Ropes in Succession ) 84h

Single Head Rope Changing-Summary 84hSet up to Detach No 1 Head Rope from Skip 5hDetach # 1 Head Rope and feed onto rope winch # 1 5hRemove Old Rope using hoist and rope winch ( pulling up South Skip ) 2hDetach old rope from South skip and reel rest of head rope onto rope winch 2hFeed New Rope off rope winch #2, over hoist drum hoist and Attach to South Skip 2hInstall new Head rope using hoist and rope winch ( lowering South skip ), cut to to length and attach North skip 5hChange Head rope # 2 21hChange Head rope # 3 21hChange Head rope # 4 21h

Flat Tail Rope Changing 17h

Flat Tail Rope Changing-Summary 17hSet up, disconnect tail rope from South skip at potash level and connect to rope reeler 3hClamp north Tail rope at collar, detach from skip, attach new Tail rope from Tail rope winch 4hUnclamp old Tail rope at collar, lower with new rope using Tail rope winch, remove old rope at potash level 4hClamp rope at Collar, cut to length and attach to South skip.Connect rope to North skip at potash level 3hUnclamp Tail rope at Collar, remove roping equipment 3h

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18Day

PCS Allan - Rope Changing PCS Allan-Rope Changing Durations Draft for Discussion


APPENDIX A

LOGIC FOR SELECTING REFERRED ROPING OPTIONS

1 Possible but would require temp. collar equipment to cater for both, head and tail ropes.

2 Current shaft layout does not allow simultaneous access to skip head and tail connections

3 Would require more time

1 Current shaft system is suitable for removal from bottom

2 Dedicated activities (collar equipment set up for headropes - potash level for tail ropes

1

2

1 Preferred method2

1

2

1

2

3

1

2

3

1

1

1 2

1

1

1

As per Removal1

Space availability for friction winch at south cannot be confirmed (future changes to conveyor gallery)

No hoisting ropes in shaft - not preferred to pull ropes up from bottom - Easier to lower new

Suggested that ropes are removed concurrent with new rope installation. To safe time "top in - bottom out" is preferred

As per removal1

Not an Option for reasons as described above

1

Remove all ropes and ending up with "3500ft empty hole" is not preferred

Permanent site not available (as per single winch option)

Permanent site availability at end of surf. change-over is possibleSpace for temporary site at south is also available

As per removal

As per Removal

Permanent site availability & and space for temp. position cannot be confirmed (as per above)

Rope configuration would require special and expensive deflection equipment and complicated procedure for multi rope removal

Current Shaft Layout is suitable for "top in - bottom out"Concurrent removal from bottom / installation from top saves time

No space for equipment at north - space is available at south

Permanent site for roping equipment at north of headframe (north collar house) not yet availableSpace for temporary site at south is available. Equipment could be positioned south

1

2

At end of surface change-over permanent site for friction winch at north cannot be confirmedRequires piling, foundations, curing time and installation - not enough time during the change-over periodNo temporary space at south (as per removal option)

Suggested that old ropes remain in shaft until after change-over

PCS Allan EPCM Underground Expansion Project2 Shaft Trade-off Study for Rope and Skip Changing

Logic for selecting Preferred Roping Options

1 Initial Rope Removal for Change-Over and Installation thereafter

Remove all Ropes at

Collar

Headropes out at Collar / Tairopes at Potash LHead & Tail Rope

Removal

Single Winch Option


Yes

Yes

No

Yes

YesLower Ropes from Collar

Pull up Ropes from

Potash L

No

No

Head & Tail Rope Installation

Single Winch Option


Guide Rope Removal

Single Winch Option


No

Yes

Remove Ropes at

Collar

Romove Ropes at Potash L

Yes

Single Winch Option

Pull up new Ropes from

Potash L

Lower new Ropes from

Collar


Guide Rope Installation

Yes

No

Yes

No

No

No

1

2

1

2

1

1

2 Time saving

1

1

1 1

2 2

3

4 1

2

1

$5,2M2

3

2 Future Head and Tail Rope Changing

PCS Allan EPCM Underground Expansion Project2 Shaft Trade-off Study for Rope and Skip Changing

Logic for selecting Preferred Roping Options

Old rope out at collar - new rope in at collar (sequenced ) is preferable

Not much application for changing full set of ropes

Will require more time than multi rope change

Not Required as all ropes can be changed from collar

Changing a full set with single rope equipment will take longer

Special flat Rope adaptor friction winch required

Ropes out and in from collar takes longer. Prefer removing from bottom - installing from top

Potash level lends it self for removal of rope

Permanent site for roping equipment will be available

Does not warrant the additional cost

Would speed up job - collar winch lowers rope concurrently with bottom reeler pulling out

Single flat tail rope winch required $$725K

All equipment could be installed at permanent site

Tail ropes are not changed as frequently as head Ropes Tail ropes are not always changed out as a set - sometimes only one is changed

Multi rope changing - 4 x old ropes out and 4 x new ropes in from collar is preferable

As per single winch option

Not required as all ropes can be changed form the collar

All work to be done from

Collar

New ropes from Collar-old ropes out at Potash L

Head Rope Changing

Single Winch Option


Yes

No

Tail Rope Changing

Single Winch Option



Collar


Yes

Yes

No



Collar

Yes

No

Yes

Yes

No


APPENDIX B

EQUIPMENT LIST FOR PREFERRED OPTIONS

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Tota

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ntity

for M

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& T

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ope

Rem

oval

(Mul

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ope

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Hea

d R

ope

Inst

alla

tion

(Mul

ti R

ope

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Tail

Rop

e In

stal

latio

n (M

ulti

Rop

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Hea

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ulti

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Tail

Rop

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Winches / ReelersRoping winch 100,000 lbs Electric 350kW Lower Single Headropes (Rope-Up) and Lower Guide RopeEach 2 2 2 2 2 1 1 1 1 1 1Friction Winch 1000 kN Electric 400 kW At Collar Each 1 1Rope Winch at Collar for Flat Tail Ropes 230 kN Electric/hydraulic 220 kW For Lowering of Flat Tail Rope Each 1 1 1 1 1 1Rope Reeler at Potash Level for Flat Tail Rope 6,000 lbs 220kW For Flat Tail Rope Changing Each 1 1 1 1Rope Reeler (Surface) 6,000 lbs 25 kN air operated For MR Head Rope Changing & General Reeling Each 1 1 1 4 4 1Rope Reeler Potash Level 6, 000 lbs Air / hydraulic / electric opeation For intial Tail Rope removal and for Guide Rope change Each 1 1 1 1 1 1Empty Rope Reels for Tail Ropes (New & Old) Each 6 6 6 6Empty Rope Reels for Head Ropes (New & Old) Each 8 8 8 8

Tugger Winch Collar 11,000 lbs Ingersol Rand LS 5000-RGC-L-E

For Removing Skip, multi & single headrope change (pulling up into headframe), pulling up guide ropes into headrame,

Each 1 1 1 1 1 1 1 1 1

Tugger Winch + 250 m cable - Potash level 11,000 lbs Ingersol Rand LS 5000-RGC-L-EFor pulling Guide Rope & Flat Tail Ropes Shaft Bottom to Potash L Each 1 1 1 1 1 1

Attachments, Suspension Glands, ClampsNew Guide Ropes Suspension Glands - Permanent) 52mm Reliance Should already be in Main Estimate $0 Each 8 8 8 81 3/4" Wedge for above glands (temporary) For Holding old Ropes in 52mm Gland Set 8 8 8 8Head Rope Suspension Glands Headframe Jacking 56mm Reliance Should already be in Main Estimate 4 4 0 0Attachment New Tail Rope to Crosshead Use Permanent Attachment $0 Set 1 1 1 1

Flat Rope Suspension GlandsMulti Rope Clamping at Potash Level, Single Rope Clamping at Potash Level, Single Tailrope Clamping at Collar

Each 2 1 1 3 1 3

Auxiliary Flat Rope Clamps For Attaching Tugger Rope Each 1 1New Guide rope Capples to Cheese Weights (52mm) 52mm Reliance Should already be in Main Estimate $0 Each 8 8 8 8New Cheese Weights (outer) 48000 lbs Should already be in Main Estimate $0 Set 4 4 4 4New Cheese Weights (inner) 110 000 lbs Should already be in Main Estimate $0 Set 2 2 2 2Set of Guide Rope Attachment Links Should already be in Main Estimate $0 Set 8 8 8 8Misc Rope clamps Set 1 1Crosby Clamps 1 3/4" Each 12 10 12 10Crosby Clamps 56mm Each 12 10 12 104 rope Twist clamp 5 tonne Each 1Flat Rope-Flat Rope Attachment Link For Lowering Flat Tail Ropes Each 1 1 1 1

Sheaves / Pulleys / BlocksVertical Deflection sheave Assembly - Collar - Single Rope For Deflection into Shaft Guide Rope Lowering Each 1 1 1 1Vertical Flat Rope Defl Sheave Assy - Collar -Single For Deflection into Shaft For Flat Tail Rope Lowering Each 1 1 1 1 1 1Vertical Deflection sheave Assembly - Collar - Single Rope For deflecting into Headframe For Head Rope removal & Single Headrope change Each 1 1 1 1 1Deflection Sheave at Potash Level For Removing of Tail Ropes & Changing Guide Ropes Each 1 1 1 1 1 1

PCS Allan Rope Handling Scoping StudyEquipment List for Preferred Options

Unit

Single Roping Option Multi Roping Option

Item Rating Specification Purpose/Use

Tota

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for S

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Hea

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Inst

alla

tion

(Sin

gle

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Tail

Rop

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stal

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Hea

d R

ope

Cha

ngin

g (S

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e R

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Flat

Tai

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(Sin

gle

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Gui

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Tota

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ntity

for M

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Hea

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(Mul

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Tail

Rop

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Hea

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Tail

Rop

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Unit


Item Rating Specification Purpose/UseFlat Tail Rope Deflection Sheave - Potash Level For Installation and Changing of Flat Tail Ropes Each 1 1 1 1 1 1Deflection sheave Assembly Multi Rope - collar Set of 4 1 1Horizontal Deflection Sheave Assembly 1500 mm Dia Fabricated For Friction Winch M Rope and Single Winch s rope - CollaSet 1 1 4 4Aux Sheaves (1.5m dia) 1.5m dia For lifting rope off existing hoist drum (head rope removal) Each 2 2 2 2Muli Purpose Reefing Block (2 x 3x) 12" For Skip Removal Each 2 2 2 2 2 2 2 2

Snatch blocks - Collar 12 inch For Skip Change Out & pulling up Head Ropes into Headframe (multi & single) Each 1 1 1 1 1 1

Snatch blocks (Circular rope)- Potash Level 12 inch For Guide Rope Change at Potash Level Each 1 1 1 1Snatch blocks (Flat rope)- Potash Level For pulling up Flat Tail Rope to Potash Level Each 1 1 1 1 1 1

SteelworkCLD Support Steel 10t Set 1 1Temp Guide Rope Chairing Beams (1819'-8" Lev 4t 2 x 420mm Beams Set 1 1 1 1Tail Rope Clamping Beams - Collar 5t Set 1 1 1 1 1 1Tail Rope Clamping Beams - Potash Level (Rope Installation 3t 2 x 250mm Beams For Intitial Rope up and for Multi Rope Changing Set 1 1 1 1 1Deflection steel work - Single Rope - Collar/Sub collar 2t Additional if Chairing Beam not Located at collar Set 1 1 1 1 1 1 1 1 1 1 1 1 1Deflection steel work - Multi Rope - Collar/Sub Collar 4t Additional if Chairing Beam not Located at collar Set 1 1Compression beams 3t Fabricated Set 1 1Deflection Steelwork at Potash Level 2t Set 1 1 1 1 1 1 1 1Headframe Rope Jacking Steelwork (Permanent) 10t Set 1 1 1Weighted Crosshead For guiding down Tail Rope Each 1 1 1 1Spreader Beam for Head Ropes 1t Multi Head Rope Changing Each 1 1Bracket for Muli Purpose Reefing Block Each 1 1 1 1 1 1Brackets for Chairing Chains Headframe Set of 4 Set of 4 2 2 2 2Brackets for Chairing Chains at Potash Level Set of 4 Set 1 1 1 1Steelwork mods to Potash level 4t For Deflect Sheave & Snatch Block Suspension Set 1 1 1 1 1 1 1 1 1 1Modifications to Collar for Deflection steel and Clamping Bea 4t Set 1 1 1 1 1 1 1 1

Lifting Equipment / Suspension Chains / Slings

Skip Chairing chainsRemoving of Skip (Multi Head Ropes), South Skip Chairing Multi Head Ropes), Skip chairing at Collar (Rope Removal & Single Rope Headrope), Includes Spare Set

Sets of 4 3 1 1 2 3 1 1 2

Chain blocks 3 ton Removing Tail Rope at Potash Level Each 2 2 2 2 2 2 2 2Chain blocks 1 ton Each 2 2 2 2 2 2 2 2Slings for moving guide ropes to new anchor point No1 50ft / 20t Each 2 2 2 2Slings for moving guide ropes to new anchor point No2 200ft / 20t Each 2 2 2 2Slings for chairing of Cheese Weights 100ft / 50t Each 2 2 2 2Brackets for above Set 1 1 1 1 1 1Nylon/fibre ropes 600 ft Each 1 1 1 11/2" Messenger Rope 300 ft Steel wire rope For Guide Rope Guidance in Shaft Bottom ft 1 1 1 1 1 1

Tota

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for S

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Tota

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Hea

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(Mul

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Tail

Rop

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Hea

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Tail

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Unit


Item Rating Specification Purpose/UseMessenger rope reel & stand Each 1 1 1 1Hand tools Set 1 1 1 1Air hoses and manifolds Set 2 2 2 2Set of spanners Set 1 1 1 1 1 1Civil Modifications to Sub Collar Lot 1 1 1 1Collar House Permanent In EstimateBuildings/Cover for Roping up - South Side Lot 1 170 ft Rope pendant (56mm dia) ft 70 1 1 1 70 1 1

Rope Clamping / Lifting JackingCLD 1500 kN Siemag or OLKO Set 1 1Headframe Rope Jacking Equipment (Jacks etc) 200t each Lot 2 2

Lifting / Rigging EquipmentRigging/Lifting Utilities Lot 1 1 1 1 1 1 1 1 1 1 1 1 1 1Bolts and Consumables Lot 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Electrical Equipment1200A Main Incoming Breaker Each 1 1 1 1 1 14160kV 1200A Type NEMA 1 Main Incoming Section Each 1 1 1 1 1 11200A MCC Free Standing Section Each 2 2 2 3 3 34160V 3 PH 110kW Starter Each 1 1 1 1 1 14160V 3 PH 220kW Starter Each 2 2 2 1 1 14160V 3 PH 350kW Starter Each 1 1 14160V 3 PH 400kW Starter Each 1 1 1100A MCC Breaker Each 1 1 1 1 1 1600 AMP 13.8kV Fusible Disc. Switch Each 1 1 1600 AMP 13.8kV Fusible Disc. Switch Each 1 1 11500 KVA Oil Filled Trans 3 PH 13800/4160V Each 1 1 12000 KVA Oil Filled Trans 3 PH 13800/4160V Each 1 1 1NGR (Neutral Ground Resistor) Each 1 1 1 1 1 125 KVA Oil Filled Tans 3 PH 4160/240/120V Each 1 1 130 KVA Oil Filled Trans 3 PH 4160/240/120V Each 1 1 1Lighting Panel Board Each 1 1 1 1 1 1

GeneralRe-locate Warm Water Tank Lot 1 1All Foundations - Single Rope Option Lot 1 1 1All Foundations - Multi Rope Option Lot 1 1 1

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(Sin

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Tail

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Flat

Tai

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(Sin

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Tota

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Hea

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Tail

Rop

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Hea

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Cha

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ulti

Rop

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Tail

Rop

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(Mul

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Gui

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Unit


Item Rating Specification Purpose/UseDouble Wheeled Dolly's 25 ton cap Each 2 2 2 2 2 2Tail Rope Loop Limiting Sensors (Laser or Wire) Each 4 4 4 4 4 4 4 4Tail Rope Protection Roller on Skip (Temp) Each 1 1 1 1


APPENDIX C

PCS ALLAN ROPE HANDLING SCOPING STUDY ESTIMATE

Purpose/Use Quantity Unit Unit Cost Estimated Cost Quantity Unit Unit Cost Estimated Cost

Winches/ReelersRoping Winch 100,000 lbs Electric 350kW Rope Removal, Re-installation Single Headrope Changes and Guide Rope Changing 2 Each $625,000 $1,250,000 1 Each $625,000 $625,000Friction Winch 1000 kN Electric 400 kW At Collar 1 Each $5,250,000 $5,250,000Rope Winch at Collar for Flat Tail Ropes 230 kN Electric/hydraulic 220 kW For Lowering of Flat Tail Rope 1 Each $725,000 $725,000 1 Each $725,000 $725,000Rope Reeler at Potash Level for Flat Tail Rope 6,000 lbs 220kW For Flat Tail Rope Changing 1 Each $140,000 $140,000 1 Each $140,000 $140,000Rope Reeler (Surface) 6,000 lbs 25 kN air operated For MR Head Rope Changing & General Reeling 1 Each $140,000 $140,000 4 Each $140,000 $560,000

Rope Reeler Potash Level 6, 000 lbs Air / hydraulic / electric opeationFor intial Tail Rope removal and for Guide Rope change1 Each $140,000 $140,000 1 Each $140,000 $140,000

Empty Rope Reels for Tail Ropes (New & Old) 6 Each $95,000 $570,000 6 Each $95,000 $570,000Empty Rope Reels for Head Ropes (New & Old) 8 Each $0 $0 8 Each $0 $0


For Removing Skip, multi & single headrope change (pulling up into headframe), pulling up guide ropes into headrame, 1 Set $62,526 $62,526 1 Set $62,526 $62,526

Tugger Winch + 250 m cable - Potash level 11,000 lbs Ingersol Rand LS 5000-RGC-L-For pulling Guide Rope & Flat Tail Ropes Shaft Bottom to Potash L 1 Set $62,526 $62,526 1 Set $62,526 $62,526Subtotal $3,090,052 $8,135,052

Attachments, Suspension Glands, ClampsNew Guide Ropes Suspension Glands - Permanent) 52mm Reliance Should already be in Main Estimate $0 8 Each $0 $0 8 Each $0 $01 3/4" Wedge for above glands (temporary) For Holding old Ropes in 52mm Gland 8 Each $1,000 $8,000 8 Each $1,000 $8,000Head Rope Suspension Glands Headframe Jacking 56mm Reliance Should already be in Main Estimate $0 4 Each $0 $0Attachment New Tail Rope to Crosshead Use Permanent Attachment $0 1 Each $0 $0 1 Each $0 $0

Flat Rope Suspension Glands Multi Rope Clamping at Potash Level, Single Rope Clamping at Potash Level, Single Tailrope Clamping at Collar 2 Each $8,900 $17,800 3 Each $8,900 $26,700

Auxiliary Flat Rope Clamps For Attaching Tugger Rope 1 Each $0 $0 1 Each $0 $0New Guide rope Capples to Cheese Weights (52mm) 52mm Reliance Should already be in Main Estimate $0 8 Each $0 $0 8 Each $0 $0New Cheese Weights (outer) 48000 lbs Should already be in Main Estimate $0 4 Each $0 $0 4 Each $0 $0New Cheese Weights (inner) 110 000 lbs Should already be in Main Estimate $0 2 Each $0 $0 2 Each $0 $0Set of Guide Rope Attachment Links Should already be in Main Estimate $0 8 Each $0 $0 8 Each $0 $0Misc Rope clamps 1 Each $0 $0 1 Each $0 $0Crosby Clamps 1 3/4" 12 Each $125 $1,500 12 Each $125 $1,500Crosby Clamps 56mm 12 Each $175 $2,100 12 Each $175 $2,1004 rope Twist clamp 5 tonne 1 Each $16,500 $16,500Flat Rope-Flat Rope Attachment Link For Lowering Flat Tail Ropes 1 Each $1,000 $1,000 1 Each $1,000 $1,000

Subtotal $30,400 $55,800

Sheaves/Pulleys/BlocksVertical Deflection sheave Assembly - Collar - Single Rope For Deflection into Shaft Guide Rope Lowering 1 Each $75,000 $75,000 1 Each $75,000 $75,000Vertical Flat Rope Defl Sheave Assy - Collar -Single For Deflection into Shaft For Flat Tail Rope Lowering 1 Each $75,000 $75,000 1 Each $75,000 $75,000Vertical Deflection sheave Assembly - Collar - Single Rope For deflecting into Headframe For Head Rope removal & Single Headrope change 1 Each $75,000 $75,000 1 Each $75,000 $75,000Deflection Sheave at Potash Level For Removing of Tail Ropes & Changing Guide Ropes 1 Each $75,000 $75,000 1 Each $75,000 $75,000Flat Tail Rope Deflection Sheave - Potash Level For Installation and Changing of Flat Tail Ropes 1 Each $75,000 $75,000 1 Each $75,000 $75,000Deflection sheave Assembly Multi Rope - collar 1 Set of 4 4 Each $75,000 $300,000Horizontal Deflection Sheave Assembly 1500 mm Dia Fabricated For Multi Rope Changing (Friction Winch) and single rope (Single Winch) at Collar 1 Each $75,000 $75,000 4 Each $75,000 $300,000Aux Sheaves (1.5m dia) 1.5m dia For lifting rope off existing hoist drum (head rope removal) 2 Each $75,000 $150,000 2 Each $75,000 $150,000Muli Purpose Reefing Block (2 x 3x) 12" For Skip Removal 2 Each $22,250 $44,500 2 Each $22,250 $44,500Snatch blocks - Collar 12 inch For Skip Change Out & pulling up Head Ropes into Headframe (multi & single) 1 Each $4,250 $4,250 1 Each $4,250 $4,250Snatch blocks (Circular rope)- Potash Level 12 inch For Guide Rope Change at Potash Level 1 Each $4,250 $4,250 1 Each $4,250 $4,250Snatch blocks (Flat rope)- Potash Level For pulling up Flat Tail Rope to Potash Level 1 Each $4,250 $4,250 1 Each $4,250 $4,250

Subtotal $657,250 $1,182,250

Steel WorkCLD Support Steel 10t 10 Tonnes $6,500 $65,000Temp Guide Rope Chairing Beams (1819'-8" Lev 4t 2 x 420mm Beams 4 Tonnes $6,500 $26,000 4 Tonnes $6,500 $26,000Tail Rope Clamping Beams - Collar 5t 5 Tonnes $6,500 $32,500 5 Tonnes $6,500 $32,500Tail Rope Clamping Beams - Potash Level (Rope Installation) 3t 2 x 250mm Beams For Intitial Rope up and for Multi Rope Changing 3 Tonnes $6,500 $19,500 3 Tonnes $6,500 $19,500Deflection steel work - Single Rope - Collar/Sub collar 2t Additional if Chairing Beam not Located at collar 2 Tonnes $6,500 $13,000 2 Tonnes $6,500 $13,000Deflection steel work - Multi Rope - Collar/Sub Collar 4t Additional if Chairing Beam not Located at collar 4 Tonnes $6,500 $26,000Compression beams 3t Fabricated 3 Tonnes $6,500 $19,500Deflection Steelwork at Potash Level 2t 2 Tonnes $6,500 $13,000 2 Tonnes $6,500 $13,000Headframe Rope Jacking Steelwork (Permanent) 10t 10 Tonnes $6,500 $65,000Weighted Crosshead For guiding down Tail Rope 1 Set $75,000 $75,000 1 Set $75,000 $75,000Spreader Beam for Head Ropes 1t Multi Head Rope Changing 1 Tonnes $6,500 $6,500Bracket for Muli Purpose Reefing Block Set of 4 1 Set $37,500 $37,500 1 Set $37,500 $37,500Brackets for Chairing Chains Headframe Set of 4 2 Set $37,500 $75,000 2 Set $37,500 $75,000Brackets for Chairing Chains at Potash Level Set of 4 1 Set $37,500 $37,500 1 Set $37,500 $37,500Steelwork mods to Potash level 4t For Deflect Sheave & Snatch Block Suspension 4 Tonnes $6,500 $26,000 4 Tonnes $6,500 $26,000Modifications to Collar for Deflection steel and Clamping Beams 4t 4 Tonnes $6,500 $26,000 4 Tonnes $6,500 $26,000

Subtotal $446,000 $498,000

Used for

PCS Allan Underground Expansion Project

PCS Allan Rope Handling Scoping Study

Description Rating Specification

Single Rope Option Multi Rope OptionEstimate for all Roping Activities


PCS Allan Rope Handling Scoping StudyEstimate for all Roping Activities

Lifting Equipment/Suspension Chains/Slings

Skip Chairing chains Set of 4 Removing of Skip (Multi Head Ropes), South Skip Chairing Multi Head Ropes), Skip chairing at Collar (Rope Removal & Single Rope Headrope), Includes Spare Set

3 Set $2,500 $7,500 3 Set $2,500 $7,500Chain blocks 3 ton Removing Tail Rope at Potash Level 2 Each $2,500 $5,000 2 Each $2,500 $5,000Chain blocks 1 ton 2 Each $1,500 $3,000 2 Each $1,500 $3,000Slings for moving guide ropes to new anchor point No1 50ft / 20t 2 Each $3,000 $6,000 2 Each $3,000 $6,000Slings for moving guide ropes to new anchor point No2 200ft / 20t 2 Each $3,000 $6,000 2 Each $3,000 $6,000Slings for chairing of Cheese Weights 100ft / 50t 2 Each $6,000 $12,000 2 Each $6,000 $12,000Brackets for above 1 Set $37,500 $37,500 1 Set $37,500 $37,500Nylon/fibre ropes 600 ft 600 Feet $2 $1,200 600 Feet $2 $1,2001/2" Messenger Rope 300 ft Steel wire rope For Guide Rope Guidance in Shaft Bottom 600 Feet $0.75 $450 600 Feet $0.75 $450Messenger rope reel & stand 1 Each $1,500 $1,500 1 Each $1,500 $1,500Hand tools 1 Each $5,000 $5,000 1 Each $5,000 $5,000Air hoses and manifolds 2 Set $3,000 $6,000 2 Set $3,000 $6,000Set of spanners 1 Set $1,500 $1,500 1 Set $1,500 $1,500Civil Modifications to Sub Collar 1 Lot $100,000 $100,000 1 Lot $100,000 $100,000Collar House Permanent In EstimateBuildings/Cover for Roping up - South Side 1 Lot $100,000 $100,000 1 Lot $100,000 $100,00070 ft Rope pendant (56mm dia) 70 Feet $100 $7,000

Subtotal $299,650 $292,650

Rope Clamping/Lifting JackingCLD 1500 kN Siemag or OLKO 1 Each $1,650,000 $1,650,000Headframe Rope Jacking Equipment (Jacks etc) 200t each 2 Each $50,000 $100,000

Subtotal $100,000 $1,650,000

Lifting/Rigging EquipmentRigging/Lifting Utilities 1 Lot $25,000 $25,000 1 Lot $25,000 $25,000Bolts and Consumables 1 Lot $10,000 $10,000 1 Lot $10,000 $10,000

Subtotal $35,000 $35,000

Electrical Capital Purchase 1 Lump Sum $253,536 $253,536 1 Lump Sum $353,235 $353,235

GeneralRe-locate Warm Water Tank 1 Lot $25,000 $25,000 1 Lot $25,000 $25,000All Foundations - Single Rope Option 1 Lot $75,000 $75,000All Foundations - Multi Rope Option 1 Lot $150,000 $150,000Double Wheeled Dolly's 25 ton cap 2 Each $3,500 $7,000 2 Each $3,500 $7,000Tail Rope Loop Limiting Sensors (Laser or Wire) 4 Each $2,500 $10,000 4 Each $2,500 $10,000Tail Rope Protection Roller on Skip (Temp) 2 Each $1,000 $2,000 2 Each $1,000 $2,000

Subtotal $119,000 $194,000

Subtotal PCS Allan Rope Handling Scoping Study $5,030,888 $12,395,987

PST 5% $251,544 $619,799Contingency 25% $1,320,608 $3,253,947Total PCS Allan Rope Handling Scoping Study $6,603,041 $16,269,733

Purpose/Use Quantity Unit Unit Cost Estimated Cost Quantity Unit Unit Cost Estimated Cost

Winches/ReelersRoping Winch 100,000 lbs Electric 350kW At Collar for Single Head Rope Changing 2 Each $625,000 $1,250,000Friction Winch 1000 kN Electric 400 kW At Collar 1 Each $5,250,000 $5,250,000Rope Winch at Collar for Flat Tail Ropes 230 kN Electric/hydraulic 220 kW For Lowering of Flat Tail Rope 1 Each $725,000 $725,000 1 Each $725,000 $725,000Rope Reeler at Potash Level for Flat Tail Rope 6,000 lbs 220kW For Flat Tail Rope Changing 1 Each $140,000 $140,000 1 Each $140,000 $140,000Rope Reeler (Surface) 6,000 lbs 25 kN air operated For MR Head Rope Changing & General Reeling 1 Each $140,000 $140,000 4 Each $140,000 $560,000Empty Rope Reels for Tail Ropes (New & Old) 6 Each $95,000 $570,000 6 Each $95,000 $570,000Empty Rope Reels for Head Ropes (New & Old) 8 Each $0 $0 8 Each $0 $0


For Removing Skip, multi & single headrope change (pulling up into headframe), pulling up guide ropes into headrame, 1 Set $62,526 $62,526 1 Set $62,526 $62,526

Tugger Winch + 250 m cable - Potash level 11,000 lbs Ingersol Rand LS 5000-RGC-L-For pulling Guide Rope & Flat Tail Ropes Shaft Bottom to Potash L 1 Set $62,526 $62,526 1 Set $62,526 $62,526Subtotal $2,950,052 $7,370,052

Attachments, Suspension Glands, ClampsHead Rope Suspension Glands Headframe Jacking 56mm Reliance Should already be in Main Estimate $0 4 Each $0 $0

Flat Rope Suspension Glands Multi Rope Clamping at Potash Level, Single Rope Clamping at Potash Level, Single Tailrope Clamping at Collar 1 Each $8,900 $8,900 3 Each $8,900 $26,700

Auxiliary Flat Rope Clamps For Attaching Tugger Rope 1 Each $0 $0 1 Each $0 $0Misc Rope clamps 1 Each $0 $0 1 Each $0 $0Crosby Clamps 56mm 12 Each $175 $2,100 12 Each $175 $2,1004 rope Twist clamp 5 tonne 1 Each $16,500 $16,500Flat Rope-Flat Rope Attachment Link For Lowering Flat Tail Ropes 1 Each $1,000 $1,000 1 Each $1,000 $1,000

Subtotal $12,000 $46,300

Sheaves/Pulleys/BlocksVertical Flat Rope Defl Sheave Assy - Collar -Single For Deflection into Shaft For Flat Tail Rope Lowering 1 Each $75,000 $75,000 1 Each $75,000 $75,000Vertical Deflection sheave Assembly - Collar - Single Rope For deflecting into Headframe For Head Rope removal & Single Headrope change 1 Each $75,000 $75,000Flat Tail Rope Deflection Sheave - Potash Level For Installation and Changing of Flat Tail Ropes 1 Each $75,000 $75,000 1 Each $75,000 $75,000Deflection sheave Assembly Multi Rope - collar 1 Set of 4 4 Each $75,000 $300,000Horizontal Deflection Sheave Assembly 1500 mm Dia Fabricated For Multi Rope Changing (Friction Winch) and single rope (Single Winch) at Collar 1 Each $75,000 $75,000 4 Each $75,000 $300,000Aux Sheaves (1.5m dia) 1.5m dia For lifting rope off existing hoist drum (head rope removal) 2 Each $75,000 $150,000Muli Purpose Reefing Block (2 x 3x) 12" For Skip Removal 2 Each $22,250 $44,500 2 Each $22,250 $44,500Snatch blocks - Collar 12 inch For Skip Change Out & pulling up Head Ropes into Headframe (multi & single) 1 Each $4,250 $4,250 1 Each $4,250 $4,250Snatch blocks (Flat rope)- Potash Level For pulling up Flat Tail Rope to Potash Level 1 Each $4,250 $4,250 1 Each $4,250 $4,250

Subtotal $503,000 $803,000

Steel WorkCLD Support Steel 10t 10 Tonnes $6,500 $65,000Tail Rope Clamping Beams - Collar 5t 5 Tonnes $6,500 $32,500 5 Tonnes $6,500 $32,500Tail Rope Clamping Beams - Potash Level (Rope Installation) 3t 2 x 250mm Beams For Intitial Rope up and for Multi Rope Changing 3 Tonnes $6,500 $19,500Deflection steel work - Single Rope - Collar/Sub collar 2t Additional if Chairing Beam not Located at collar 2 Tonnes $6,500 $13,000Deflection steel work - Multi Rope - Collar/Sub Collar 4t Additional if Chairing Beam not Located at collar 4 Tonnes $6,500 $26,000Compression beams 3t Fabricated 3 Tonnes $6,500 $19,500Deflection Steelwork at Potash Level 2t 2 Tonnes $6,500 $13,000 2 Tonnes $6,500 $13,000Headframe Rope Jacking Steelwork (Permanent) 10t 10 Tonnes $6,500 $65,000Weighted Crosshead For guiding down Tail RopeSpreader Beam for Head Ropes 1t Multi Head Rope Changing 1 Tonnes $6,500 $6,500Bracket for Muli Purpose Reefing Block Set of 4 1 Set $37,500 $37,500 1 Set $37,500 $37,500Brackets for Chairing Chains Headframe Set of 4 2 Set $37,500 $75,000 2 Set $37,500 $75,000Steelwork mods to Potash level 4t For Deflect Sheave & Snatch Block Suspension 4 Tonnes $6,500 $26,000 4 Tonnes $6,500 $26,000Modifications to Collar for Deflection steel and Clamping Beams 4t 4 Tonnes $6,500 $26,000 4 Tonnes $6,500 $26,000

Subtotal $288,000 $346,500

Lifting Equipment/Suspension Chains/Slings

Skip Chairing chains Set of 4 Removing of Skip (Multi Head Ropes), South Skip Chairing Multi Head Ropes), Skip chairing at Collar (Rope Removal & Single Rope Headrope), Includes Spare Set

3 Set $2,500 $7,500 3 Set $2,500 $7,500Chain blocks 3 ton Removing Tail Rope at Potash Level 2 Each $2,500 $5,000 2 Each $2,500 $5,000Chain blocks 1 ton 2 Each $1,500 $3,000 2 Each $1,500 $3,000Nylon/fibre ropes 600 ft 600 Feet $2 $1,200 600 Feet $2 $1,2001/2" Messenger Rope 300 ft Steel wire rope For Guide Rope Guidance in Shaft Bottom 600 Feet $0.75 $450 600 Feet $0.75 $450Messenger rope reel & stand 1 Each $1,500 $1,500 1 Each $1,500 $1,500Hand tools 1 Each $5,000 $5,000 1 Each $5,000 $5,000Air hoses and manifolds 2 Set $3,000 $6,000 2 Set $3,000 $6,000Set of spanners 1 Set $1,500 $1,500 1 Set $1,500 $1,500Civil Modifications to Sub Collar 1 Lot $100,000 $100,000 1 Lot $100,000 $100,000Collar House Permanent In Estimate70 ft Rope pendant (56mm dia) 70 Feet $100 $7,000

Subtotal $138,150 $131,150

Multi Rope OptionUsed for


PCS Allan Rope Handling Scoping Study

Description Rating Specification

Single Rope OptionEstimate for Future Rope Changing Only


PCS Allan Rope Handling Scoping Study Estimate for Future Rope Changing Only

Rope Clamping/Lifting JackingCLD 1500 kN Siemag or OLKO 1 Each $1,650,000 $1,650,000Headframe Rope Jacking Equipment (Jacks etc) 200t each 2 Each $50,000 $100,000

Subtotal $100,000 $1,650,000

Lifting/Rigging EquipmentRigging/Lifting Utilities 1 Lot $25,000 $25,000 1 Lot $25,000 $25,000Bolts and Consumables 1 Lot $10,000 $10,000 1 Lot $10,000 $10,000

Subtotal $35,000 $35,000

Electrical Capital Purchase 1 Lump Sum $253,536 $253,536 1 Lump Sum $353,235 $353,235

GeneralRe-locate Warm Water Tank Lot $25,000 $0 Lot $25,000 $0All Foundations - Single Rope Option 1 Lot $75,000 $75,000All Foundations - Multi Rope Option 1 Lot $150,000 $150,000Double Wheeled Dolly's 25 ton cap 2 Each $3,500 $7,000 2 Each $3,500 $7,000Tail Rope Loop Limiting Sensors (Laser or Wire) 4 Each $2,500 $10,000 4 Each $2,500 $10,000Tail Rope Protection Roller on Skip (Temp) 2 Each $1,000 $2,000 2 Each $1,000 $2,000

Subtotal $94,000 $169,000

Subtotal PCS Allan Rope Handling Scoping Study $4,373,738 $10,904,237

PST 5% $218,687 $545,212Contingency 25% $1,148,106 $2,862,362Total PCS Allan Rope Handling Scoping Study $5,740,531 $14,311,811


APPENDIX D

SINGLE WINCH OPTION

Figure 1 Typical Shaft Sinking Winch for “Single Winch” Application

Figure 2 Typical Shaft Sinking Winch for “Single Winch” Applications

Figure 3 Drawing For Typical Single Winch


APPENDIX E

FRICTION WINCH OPTION

Figure 1 Friction Winch and Ancillary Equipment in Operation

Figure 2 Friction Winch for Four (4) Ropes

Figure 3 Friction Winch 2000 kN

Figure 4 Typical Clamping and Lifting Device


APPENDIX F

ROPE AND CONVEYANCE CHANGING METHODS

rpt_scope_study_rope_changing_rb4_rjs_20100125 - rev2

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