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

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lJ
p zcoord Suess Stress Pressure Stress
(k) (Ps0 (P50 (Psf) (Psi
I 108.15 180.4 90.3 .0 99.1
2 112.30 867.2 444.2 .0 487.3
3 118.35 2254.0 1140.6 31.2 1220.9
4 122.69 4207.0 1661.6 .0 1785.2
5 126.63 3265.5 2086.5 .0 1620.0
6 130.05 3681.9 2428.5 .0 1693.1
7 165.05 8237.2 6044.1 .0 2492.0
B 240.00 17100.4 13587.9 .0 4046.6
9 365.00 24373.4 23099.4 .0 5322.2
10 495.00 28212.0 30318.1 .0 5995.4
11 565.00 29416.4 32662.0 .0 6206.7
12 704.05 26185.6 29088.3 .0 5640.0
l3 818.38 15798.9 24771.3 .0 3818.3
14 81 8.92 9643.6 24665.4 31.2
5279.7
IS 825.05 9091.2 23282.9 .0 4993.3
16 837.02 80k1.6 20586.4 .0 4418.5
17 849.28 6966.3 17826.8 .0 3826.2
18 861.53 5863.1 15066.9 .0 3231.3
19 873.79 4809.4 12307.0 .0 2641.6
20 886.04 3729.0 9547.6 .0 2048.1
21 898.30 2651.8 6787.7 .0 1456.5
22 910.56 1573.9 4027.7 .0 864.5
23 922.57 517.3 1324.0 .0 284.2
IS 830.89 13.46 666588. 62.43 209.20
.298
16 843.15 13.46 524900. 54.72 162.92
.299
17 855.41 13.46 384887. 47.04 156.64
.300
16 867.66 13.46 266551. 39.37 130.35
.302
19 879.92 13.46 169892. 31.79 104.07
.305
20 892.17 13.46 94924. 24.32 77.79
.313
21 904.43 13.46 41599. 17.16 51.50
.333
22 916.69 13.46 9965. 11.20 25.22
.444
23 928.45 .00 -I5. -.32 .00 .000
AVERAGE VALUES ALONG FAIl.URE SUR FACE
Total Normal Stress = 17986.53 (psf)
Pore Water Pressure = .30 (psf)
Shear Stress = 4388.96 (psf)
Tool Length of failure surface = 1003.56 feet

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SPENCER'S (1973) - Magdude & Lacauon of
Interstice Forces
Slice Right Force Interstice Force Bourdary
Heigh[
p z<oord Angle Farce Heigh[ Height
Ratio
(k) (degrees) (Ib) (k) (k)
1 110.00 13.46 695. 1.30 1.72
.757
2 114.60 13.46 4956. 2.03 6.74
.302
3 122.11 13.46 22509. 3.68 14.94
.246
4 123.27 13.46 28444. 3.95 16.54
.239
5 130.00 13.46 47099. 5.46 22.97
.238
6 130.10 13.46 47398. 5.48 23.06
.238
7 200.00 13.46 438260. 23.71 91.75
.258
8 280.00 13.46 1210721. 38.64 166.75
.232
9 450.00 13.46 2141056. 53.69 273.00
.197
10 540.00 13.46 1970663. 54.72 304.25
.180
11 590.00 13.46 1749656. 55.36 317.64
.174
12 SlB.ll 13.46 879095. 69.99 236.18
.296
13 818.64 13.46 869933. 70.16 235.49
.298
14 819.20 13.46 861071. 69.81 234.28
.296
For the niggle specified surface and the assumed angle
of the interstice (ones, the SPENCER'S (1973)
procedure gives a
FACTOR OF SAFETY = 1.528
To[al shear strength available
along specified failure surface = 672.87E+04 Ib
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