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REV04523
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REV04523
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Entry Properties
Last modified
8/25/2016 1:02:41 AM
Creation date
11/21/2007 9:18:26 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Revision
Doc Date
11/21/1996
Doc Name
SYLVESTER GULCH STABILITY ANALYSIS FOR RECLAMATION
From
GOLDER ASSOCIATES
To
MOUNTAIN COAL CO
Type & Sequence
PR7
Media Type
D
Archive
No
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cases, this effect can only be eliminated by reducing the "c" value. <br />------------------------------------------------------------ <br />USER SELECTED option to maintain strength greater than zero <br />------------------------------------------------------------ <br />Factors of safety have been calculated by the <br />* * * * * SIMPLIFIED BISHOP METHOD <br />The most critical circular failure surface <br />is specified by 13 coordinate points <br />Point x-surf y-surf <br />No. (ft) (f t) <br />1 182.05 6912.82 <br />2 213.69 6917.59 <br />3 245.00 6924.19 <br />4 275.88 6932.61 <br />5 306.21 6942.80 <br />6 335.90 6954.74 <br />7 364.84 6968.39 <br />8 392.95 6983.70 <br />9 420.11 7000.61 <br />10 446.24 7019.08 <br />11 471.26 7039.03 <br />12 495.07 7060.41 <br />13 510.88 7076.35 <br />**** Simplified BISHOP FOS = 1.574 **** <br /> <br />The following is a summary of the TEN most critical surfaces <br />Problem Description SYLVESTER GULCH-Tank Area Sec C-C <br /> FOS Circle Center Radius Initial Terminal Resisting <br /> (BISHOP) x-coord y-coord x-coord x-coord Moment <br /> (f t) (ft) (ft) (ft) (ft) (ft-lb) <br />1. 1.574 115.90 7458.86 550.04 182.05 510.88 3.918E+08 <br />2. 1.578 62.95 7652.22 744.40 202.56 571.34 5.606E+08 <br />3. 1.580 72.40 7520.50 622.31 161.54 506.18 4.268E+08 <br />4. 1.585 63.23 7608.55 715.38 141.03 578.88 8.319E+08 <br />5. 1.587 171.61 7456.42 529.70 223.08 570.37 4.896E+08 <br />6. 1.587 120.37 7615.94 699.76 202.56 620.71 8.550E+08 <br />7. 1.587 165.83 7489.97 563.65 223.08 586.12 5.640E+08 <br />8. 1.587 64.88 7572.51 674.85 161.54 539.51 5.424E+08 <br />9. 1.588 127.52 7517.49 593.66 233.33 548.00 3.756E+08 <br />10. 1.588 -13.68 7864.90 965.68 212.82 603.76 7.409E+OB <br />
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