REV07535

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Date: 8/6/1998
• Doc Name: PAD 1 SLOPE STABILITY EVALUATION
• From: GOLDER ASSOCIATES INC
• To: CRIPPLE CREEK & VICTOR GOLD MINING CO
• Type & Sequence: TR27
• Media Type: D
• Archive: No

' XSTABL File: DWIS 7-09-98 14:22
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• Slope Stability Analysis t
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i Method of Slices
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• Copyright (C) 1992 A 96
• Interactive SoRware Designs, htc.
* Moscow, m 83643, U.S.A.
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All Rights Reserved »
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* Ver. 5.200 96 A 1325
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Problem Description : Stab0iry Eval.: Section D-D
Maximum ore height to elevation 9725 feet
Sideslope = I.6Ii:IV
' Static
Spencer's method
SEGMENT BOUNDARY COORDINATES
6 SURFACE boundary segments
Segment x-left y-left z-nigh[ y-right Soil Unit
Na. (fi) (fr) (ft) (fi) Below Segment
1 .0 9560.0 10.0 9560.0 1
2 10.0 9560.0 20.0 9560.0 1
3 20.0 9560.0 284.0 9725.0 I
4 284.0 9725.0 463.3 9725.0 1
S 463.3 9725.0 780.0 9680.0 1
' 6 780.0 9680.0 1000.0 9680.0 1
' 16 SUBSURFACE boundary segments
Segment z-left y-left x-right y-tight Soil Unit
No. (h) (ft) (fi) (h) Below Segmem
1 .0 9560.0 30.0 9550.0 2
' 2 30.0 9550.0 90.0 9525.0 2
3 90.0 9525.0 150.0 9520.0 2
4 150.0 9520.0 370.0 9515.0 2
S 370.0 9515.0 460.0 9525.0 2
' 6 460.0 9525.0 620.0 9550.0 2
7 620.0 9550.0 670.0 9550.0 2
B 670.0 9550.0 850.0 9525.0 2
9 .0 9559.0 30.0 9549.0 3
10 30.0 9549.0 90.0 9524.0 3
ll 90.0 9524.0 150.0 9519.0 3
12 150.0 9519.0 370.0 9514.0 3
13 370.0 9514.0 460.0 9524.0 3
' 14 460.0 9524.0 620.0 9549.0 3
IS 620.0 9549.0 670.0 9549.0 3
16 670.0 9549.0 850.0 9524.0 3
1 __-_--
ISOTROPIC Soil Parameters

3 Soo unit(s) specked
Soil Unit Weight Cohesion Fricdon Pore Pressure
Water
Unit Moil[ Sat. Intercept Angle Param eter Constant
Surface
No. (pcq (pcf) (psf) (deg) Ru (ps0 No.
1 105.0 110.0 .0 40.00 .000 .0 1
2 120.0 125.0 .0 21.00 .000 .0 0
3 120.0 125.0 .0 40.00 .000 .0 0
A SB4GLE FAIl-URE SURFACE HAS BEEN
SPEC~D FOR ANALYSIS
Trial failure surface specified by
the following IB coordinate points
Point x-stiff y-surf
No. (ft) (N)
1 4.62 9560.00
2 16.22 9554.59
3 17.63 9553.62
4 30.10 9549.50
5 90.00 9524.50
6 150.00 9519.50
7 202.69 9518.30
8 203.03 9518.79
9 213.59 9541.45
10 224.16 9564.11
11 234.72 9586.77
12 245.29 9609.42
13 255.85 9632.08
14 266.42 9654.74
IS 276.98 9677.40
16 287.55 9700.05
17 298.11 9722.71
IB 299.18 9725.00
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SELECTED METHOD OF ANALYSIS: Spexer
(1973)
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SUMMARY OF BJDNmUAL SLICE INFORMATION
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Slice x-base y-base height width alpha beta
weigh)
(ft) (fi) (fi) ( h) Qb)
1 7.31 9558.75 1.25 5.38 -25.00 .00
709.
2 13.10 9556.05 3.95 6.19 -25.00 .00
2571.
3 16.21 9554.60 5.40 .03 -25.00 .00
15.
1