2002-04-22_REVISION - M1982147

• Permit No: M1982147
• IBM Index Class Name: Revision
• Doc Date: 4/22/2002
• Doc Name: AdditionalSupport Information - Slope Stability
• From: Lafarge
• To: DMG
• Type & Sequence: TR1
• Media Type: D
• Archive: No

* * * * * DEFAULT SEGMENT LENGTH SELECTED BY XSTABL
9.0 ft line segments define each trial failure surface.
ANGULAR RESTRICTIONS
The first segment of each failure surface will be inclined
within the angular range defined by
Lower angular limit :_ -45.0 degrees
Upper angular limit :_ -5.0 degrees
Factors of safety have been calculated by the
* * * * * SIMPLIFIED BISHOP METHOD
The most critical circular failure surface
is specified by 39 coordinate points
Point x-surf y-surf
No. (ft) ~ (ft)
1 126.77 100.00
2 130.71 99.33
3 139.67 98.75
4 136.64 98.25
5 142.62 97.89
6 196.60 97.51
7 150.60 97.27
8 154.59 97.11
9 158.59 97.03
10 162.59 97.09
11 166.59 97.19
12 170.59 97.32
13 174.55 97.58
19 178.56 97.93
15 182.59 98.37
16 186.50 98.89
17 190.46 99.99
18 199.40 100.17
19 198.32 100.95
20 202.23 101.80
21 206.12 102.79
22 209.99 103.75
23 213.89 104.85
24 217.66 106.09
25 221.45 107.30
26 225.22 108.69
27 226.96 110.07