2021-07-21_REVISION - M2012032 ‎(2)‎

• Permit No: M2012032
• IBM Index Class Name: Revision
• Doc Date: 7/21/2021
• Doc Name: Adequacy Review Response #2
• From: Ouray Silver Mines
• To: DRMS
• Type & Sequence: TR15
• Email Name: LJW
• Media Type: D
• Archive: No

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O.Oc 0.00 600.00 0.00
Failure Surface (Critical, from previous analysis)
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Initial circular surface for critical search defined by: XC,YC,R
Intersects: XL: 341.00 YL: 60.00 XR: 557.46 YR: 0.69
Centre: KC: 505.91 YC: 237.21 Radius: R: 242.07
Variable Restraints
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Parameter descriptor: XC YC R
Range of variation: 50.00 50.00 50.00
Trial positions within range: 50 50 50
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RESULTS: Analysis 2 - Lab Scenario 4 pt2
Bishop Simplified Method of Analysis -Circular Failure Surface
---------------------------------------------------------------
Critical Failure Circle Search using Multiple Circle Generation Techniques
Factor of Safety for initial failure circle approximation: 4.24
There were: 53402 successful analyses from a total of 125001 trial circles
71585 analyses terminated due to unacceptable geometry
14 analyses that failed to produce a result
Critical (minimum) Factor of Safety: 4.08
Negative normal stresses exist on the base of one or more slices -examine slice data and consult the GALENA Help utility
Test Factor is less than 0.2 lower limit for one or more slices - examine slice data and consult the GALENA Help utility
Circle and Results Summary (Lowest 99 Factor of Safety circles)
--------------------------
Circle X-Left Y-Left X-Right Y-Right X-Centre Y-Centre Radius FoS
1 341.01 59.98 559.67 0.09 503.36 223.44 230.34 4.076
2 341.04 59.99 559.67 0.09 506.42 234.66 240.54 4.126
3 341.05 59.99 558.47 0.42 504.38 229.56 235.44 4.164
4 341.06 59.98 559.97 0.01 510.50 24B.95 253.81 4.166
5 341.06 59.98 559.42 0.16 513.56 261.19 265.03 4.243
6 341.00 60.00 557.46 0.69 505.91 237.21 242.07 4.243
7 341.06 59.98 554.01 1.64 497.24 212.21 218.09 4.258
8 341.04 59.99 557.91 0.57 510.50 253.03 256.87 4.281
9 341.04 59.99 551.62 2.30 496.22 213.23 218.09 4.365
10 341.08 59.98 554.26 1.57 507.44 248.95 251.76 4.416
11 341.03 59.99 549.21 2.96 495.19 214.25 218.09 4.469
12 341.05 59.99 551.55 2.31 502.34 235.68 238.50 4.478
13 341.04 59.99 546.78 3.62 494.17 115.27 218.09 4.571
14 313.29 60.24 559.64 0.10 490.91 212.21 226.25 4.607
15 312.84 60.24 559.75 0.07 480.91 213.23 227.27 4.600
16 312.3E 60.25 559.85 0.04 480.91 214.25 228.30 4.609
17 311.93 60.25 559.96 0.01 400.91 215.27 229.32 4.609
18 317.77 60.20 559.69 0.09 483.97 212.21 225.23 4.627
19 317.32 60.20 559.79 0.06 483.97 213.23 226.25 4.628
20 316.87 60.21 559.80 0.03 483.97 214.25 227.27 4.628
21 316.42 60.21 559.98 0.00 483.97 215.27 228.30 4.629
22 316.74 60.21 559.11 0.24 482.95 212.21 225.23 4.638
13 316.29 60.21 559.21 0.22 482.95 213.23 226.25 9.638
24 315.84 60.22 559.31 0.19 482.95 214.25 227.27 4.639
25 315.39 60.22 559.41 0.16 482.95 215.27 228.30 9.639
26 314.94 60.22 559.51 0.13 482.95 216.29 229.32 4.640
2� 314.49 60.23 559.61 0.11 482.95 217.31 230.34 4.641
28 314.04 60.23 559.10 0.08 482.95 218.33 231.36 4.641
29 313.60 60.24 559.80 0.05 482.95 219.35 232.38 4.642
30 313.15 60.24 559.90 0.03 482.95 220.38 233.40 4.643
31 312.71 60.24 560.00 0.00 482.95 221.40 234.42 4.644
32 341.06 59.98 546.74 3.63 497.24 226.50 228.30 4.647
33 313.91 60.23 558.93 0.29 481.93 216.29 229.32 4.651
34 313.46 60.24 559.03 0.27 481.93 217.31 230.34 4.652
35 313.01 60.24 559.13 0.24 481.93 218.33 231.36 4.653
36 312.57 60.25 559.23 0.21 481.93 219.35 232.38 4.654
37 312.12 60.25 559.33 0.18 481.93 220.38 233.40 4.655
38 311.68 60.25 559.42 0.16 481.93 221.40 234.42 4,656
39 311.24 60.26 559.52 0.13 481.93 222.42 235.44 4.657
40 310.80 60.26 559.62 0.10 481.93 223.44 236.46 4.659
41 320.91 60.17 559.95 0.01 487.03 215.27 227.27 4.660
42 310.36 60.26 559.71 0.08 481.93 224.46 237.48 4.660
43 321.35 60.17 559.86 0.04 487.03 214.25 226.25 4.660
44 321.80 60.17 559.76 0.06 487.03 213.23 225.23 4.660
45 322.25 60.16 559.67 0.09 487.03 112.21 224.21 4.660
46 309.92 60.27 559.81 0.05 481.93 225.48 238.50 4.661
47 309.48 60.27 559.91 0.03 481.93 226.50 239.52 4.662
48 314.36 60.23 558.83 0.32 481.93 215.27 228.30 4.664
49 309.04 60.28 560.00 0.00 481.93 227.52 240.54 4.664
50 314.81 60.23 558.73 0.35 481.93 214,25 227.27 4.664
51 315.26 60.22 558.63 0.38 481.93 213.23 226.25 4.664
52 315.71 60.22 558.53 0.40 481.93 212.21 225.23 4.665
53 320.32 60.18 559.29 0.19 486.01 214.25 226.25 4.668