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)
-------------
-200.00 6200.00 50.00 6200.00 95.00 6185.00 115.00 6175.00 200.00 6175.00
Phreatic Surface (2 points)
----------------
0.00 6195.00 200.00 6195.00
Failure Surface (Critical, from previous analysis)
---------------
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 4 - Geotechnical Stability Exhibit
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: 2.886
There were: 9829 successful analyses from a total of 15625 trial surfaces
5796 analyses terminated due to unacceptable geometry
Critical (minimum) Factor of Safety: 2.41
Results Summary - Lowest 99 Factor of Safety circles
----------------------------------------------------
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 2.411 <-- Critical Surface
2 75.00 6191.67 115.00 6175.00 190.39 6412.27 248.96 2.411
3 75.00 6191.67 115.00 6175.00 189.58 6410.34 246.88 2.411
4 75.00 6191.67 115.00 6175.00 189.99 6411.30 247.92 2.411
5 75.00 6191.67 115.00 6175.00 189.18 6409.37 245.83 2.411
6 75.00 6191.67 115.00 6175.00 188.78 6408.41 244.79 2.411
7 75.00 6191.67 115.00 6175.00 188.38 6407.44 243.75 2.411
8 75.00 6191.67 115.00 6175.00 187.98 6406.48 242.71 2.412
9 75.00 6191.67 115.00 6175.00 187.57 6405.51 241.67 2.412
10 75.00 6191.67 115.00 6175.00 187.17 6404.55 240.62 2.412
11 75.00 6191.67 115.00 6175.00 186.77 6403.58 239.58 2.412
12 75.00 6191.67 115.00 6175.00 186.37 6402.62 238.54 2.412
13 75.00 6191.67 115.00 6175.00 185.96 6401.65 237.50 2.412
14 75.00 6191.67 115.00 6175.00 185.56 6400.68 236.46 2.412
15 75.00 6191.67 115.00 6175.00 185.16 6399.72 235.42 2.412
16 75.00 6191.67 115.00 6175.00 184.76 6398.75 234.38 2.412
17 75.00 6191.67 115.00 6175.00 184.36 6397.79 233.33 2.412
18 75.00 6191.67 115.00 6175.00 183.95 6396.82 232.29 2.412
19 75.00 6191.67 115.00 6175.00 183.55 6395.86 231.25 2.413
20 75.00 6191.67 115.00 6175.00 183.15 6394.89 230.21 2.413
21 75.00 6191.67 115.00 6175.00 182.75 6393.92 229.17 2.413
22 75.00 6191.67 115.00 6175.00 182.34 6392.96 228.12 2.413
23 75.00 6191.67 115.00 6175.00 181.94 6391.99 227.08 2.413
24 75.00 6191.67 115.00 6175.00 181.54 6391.03 226.04 2.413