2020-06-30_REVISION - M1974086 ‎(6)‎

• Permit No: M1974086
• IBM Index Class Name: REVISION
• Doc Date: 6/30/2020
• Doc Name: Request for Technical Revision
• From: Asphalt Paving Co.
• To: DRMS
• Type & Sequence: TR4
• Email Name: ECS
• Email Name: MAC
• Email Name: AWA
• Media Type: D
• Archive: No

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Surface within profile: 1 (5 points) - Tailings
1.00 6148.00 200.00 6180.00 280.00 6183.00 438.00 6235.30 743.00
6386.00
Surface within profile: 2 (5 points) - Colluvium
1.00 6148.00 200.00 6180.00 280.00 6183.00 438.00 6235.30 743.00
6386.00
Failure Surface
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Initial circular surface for critical search defined by: XL,XR,R
Intersects: XL: 214.00 YL: 6198.66 XR: 540.00 YR: 6314.06
Centre: XC: 238.36 YC: 6648.00 Radius: R: 450.00
Variable Restraints
-------------------
Parameter descriptor: XL XR R
Range of variation: 268.00 371.00 25.00
Trial positions within range: 20 20 18
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -
RESULTS: Analysis 1 - Zone 3B
Bishop Simplified Method of Analysis - Circular Failure Surface
---------------------------------------------------------------
Critical Failure Surface Search using Multiple Circle Generation Techniques
Factor of Safety for initial failure surface approximation: 1.875
There were: 6321 successful analyses from a total of 7201 trial surfaces
880 analyses terminated due to unacceptable geometry
Critical (minimum) Factor of Safety: 1.30
Results Summary - Lowest 99 Factor of Safety circles
----------------------------------------------------
Circle X-Left Y-Left X-Right Y-Right X-Centre Y-Centre Radius FoS
1 333.89 6230.87 647.39 6369.61 325.16 6674.16 443.38 1.304 <-- Critical
Surface
2 333.89 6230.87 647.39 6369.61 324.51 6675.62 444.85 1.307
3 333.89 6230.87 647.39 6369.61 323.87 6677.08 446.32 1.310
4 333.89 6230.87 647.39 6369.61 323.23 6678.54 447.79 1.312
5 333.89 6230.87 647.39 6369.61 322.58 6679.99 449.26 1.313
6 348.00 6234.66 647.39 6369.61 331.06 6671.83 437.50 1.313
7 348.00 6234.66 647.39 6369.61 330.40 6673.28 438.97 1.318
8 333.89 6230.87 647.39 6369.61 321.94 6681.44 450.74 1.319
9 291.58 6219.50 627.87 6360.79 300.69 6668.67 449.26 1.322
10 348.00 6234.66 647.39 6369.61 329.75 6674.72 440.44 1.322
11 333.89 6230.87 647.39 6369.61 321.29 6682.90 452.21 1.322
12 291.58 6219.50 627.87 6360.79 300.06 6670.16 450.74 1.325
13 333.89 6230.87 647.39 6369.61 320.65 6684.35 453.68 1.326
14 348.00 6234.66 647.39 6369.61 329.10 6676.17 441.91 1.327
15 291.58 6219.50 627.87 6360.79 299.44 6671.64 452.21 1.328
16 333.89 6230.87 647.39 6369.61 320.01 6685.80 455.15 1.329
17 348.00 6234.66 647.39 6369.61 328.45 6677.61 443.38 1.331