2019-10-11_REVISION - M2008022

• Permit No: M2008022
• IBM Index Class Name: REVISION
• Doc Date: 10/11/2019
• Doc Name: Completeness Response
• From: Greg Lewicki & Assoc.
• To: DRMS
• Email Name: ACY
• Media Type: D
• Archive: No

Slope Surface (5 points)
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-200.00 6200.00 50.00 6200.00 95.00 6185.00 115.00 6175.00 200.00 6175.00
Piezometric Surfaces (1 surface)
--------------------
Surface within profile: 1 (5 points) - Sand and gravel, mixed grain size
-200.00 6195.00 65.00 6195.00 95.00 6185.00 115.00 6175.00 200.00 6175.00
Failure Surface (Critical, from previous analysis)
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Initial circular surface for critical search defined by: XL,XR,R
Intersects: XL: 37.50 YL: 6200.00 XR: 115.00 YR: 6175.00
Centre: XC: 148.08 YC: 6410.18 Radius: R: 237.50
Variable Restraints
-------------------
Parameter descriptor: XL XR R
Range of variation: 75.00 60.00 25.00
Trial positions within range: 25 25 25
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -
RESULTS: Analysis 2 - Geotechnical Stability Exhibit
Bishop Simplified Method of Analysis - Circular Failure Surface
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Critical Failure Surface Search using Multiple Circle Generation Techniques
Factor of Safety for initial failure surface approximation: 1.488
There were: 9829 successful analyses from a total of 15625 trial surfaces
5796 analyses terminated due to unacceptable geometry
Critical (minimum) Factor of Safety: 0.81
Results Summary - Lowest 99 Factor of Safety circles
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Circle X-Left Y-Left X-Right Y-Right X-Centre Y-Centre Radius FoS
1 75.00 6191.67 115.00 6175.00 190.79 6413.23 250.00 0.809 <-- Critical Surface
2 75.00 6191.67 115.00 6175.00 190.39 6412.27 248.96 0.809
3 75.00 6191.67 115.00 6175.00 189.99 6411.30 247.92 0.809
4 75.00 6191.67 115.00 6175.00 189.58 6410.34 246.88 0.809
5 75.00 6191.67 115.00 6175.00 189.18 6409.37 245.83 0.809
6 75.00 6191.67 115.00 6175.00 188.78 6408.41 244.79 0.809
7 75.00 6191.67 115.00 6175.00 188.38 6407.44 243.75 0.809
8 75.00 6191.67 115.00 6175.00 187.98 6406.48 242.71 0.809
9 75.00 6191.67 115.00 6175.00 187.57 6405.51 241.67 0.809
10 75.00 6191.67 115.00 6175.00 187.17 6404.55 240.62 0.809
11 75.00 6191.67 115.00 6175.00 186.77 6403.58 239.58 0.809
12 75.00 6191.67 115.00 6175.00 186.37 6402.62 238.54 0.809
13 75.00 6191.67 115.00 6175.00 185.96 6401.65 237.50 0.809
14 75.00 6191.67 115.00 6175.00 185.56 6400.68 236.46 0.809
15 75.00 6191.67 115.00 6175.00 185.16 6399.72 235.42 0.809
16 75.00 6191.67 115.00 6175.00 184.76 6398.75 234.38 0.809
17 75.00 6191.67 115.00 6175.00 184.36 6397.79 233.33 0.809
18 75.00 6191.67 115.00 6175.00 183.95 6396.82 232.29 0.810
19 75.00 6191.67 115.00 6175.00 183.55 6395.86 231.25 0.810
20 75.00 6191.67 115.00 6175.00 183.15 6394.89 230.21 0.810
21 75.00 6191.67 115.00 6175.00 182.75 6393.92 229.17 0.810
22 75.00 6191.67 115.00 6175.00 182.34 6392.96 228.12 0.810