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REP43914
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REP43914
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Last modified
8/25/2016 12:46:15 AM
Creation date
11/27/2007 10:04:55 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Report
Doc Name
GEOTECHNICAL INVESTIGATION WEST PIT EXCESS SPOIL DISPOSAL SITE COLOWYO COAL MINE MOFFAT CNTY COLO
Permit Index Doc Type
Waste Pile/Fill Report
Media Type
D
Archive
No
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~', <br />TABLE C - 1 <br />SUMMARY OF STABILITY ANALYSES <br />SECTION AA <br />JOB NO 16516 <br />TRIAL AAt AA2 AA3 AA4 AA5 AA6 AA7 AAB AA9 AA10 AA11 AA12 AA13 AA74 AA15 AA16 AA17 AA18 <br />SPOIL <br />Moist Wt.(pc1) <br />125 <br />125 <br />125 <br />125 <br />125 <br />130 <br />115 <br />125 <br />125 <br />125 <br />125 <br />125 <br />125 <br />125 <br />125 <br />125 <br />125 <br />125 <br />Sat. Wt.(pcf) 135 135 135 135 135 140 125 135 135 135 135 135 135 135 135 135 135 135 <br />Cohesion (psf) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 <br />Phi (degrees) 35 37 39 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 <br />CLAY <br />Moist Wt.(pcf) <br />110 <br />110 <br />110 <br />t10 <br />110 <br />110 <br />110 <br />120 <br />100 <br />110 <br />110 <br />110 <br />110 <br />110 <br />125 <br />125 <br />125 <br />125 <br />Sat. Wt.(pc1) 120 t20 120 t20 120 120 120 130 110 120 120 120 120 120 135 135 135 135 <br />Cohesion (psf) 500 500 500 0 250 500 500 500 500 500 0 0 500 500 0 0 0 0 <br />Phi (degrees) t5 15 15 75 15 15 t5 75 15 15 15 15 15 15 35 35 35 35 <br />BEDROCK <br />Morsl Wt. (pct) <br />t30 <br />130 <br />130 <br />130 <br />130 <br />130 <br />130 <br />730 <br />730 <br />130 <br />130 <br />130 <br />130 <br />130 <br />130 <br />t30 <br />130 <br />130 <br />Sal. Wt.(pCl) 140 740 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 <br />Cohesron (psl) 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 <br />Phi (degrees) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 <br />WATER SURFACE <br />Top of Clay <br />x <br />X <br />X <br />x <br />X <br />x <br />x <br />x <br />x <br />X <br />x <br />x <br />X <br />X <br />20 Feet Above Clay X X <br />40 Feet Above Clay X X <br />FACTOR OF SAFETY 1.5 1.5 1.5 0.7 7.1 1.5 1.5 1.5 1.5 1.7 1.1 0.9 1.4 1.0 1.0 1.5 1.8 •1:3 <br />NOTES: <br />1 TRIALS 7-3 TOE FAILURE, CIRCULAR SEARCH, CHANGING PHI IN SPOIL <br />2. TRIALS 1,4,5 TOE FAILURE. CIRCULAR SEARCH, CHANGING C IN CLAY <br />3 TRIALS 1,6,7 TOE FAILURE. CIRCULAR SEARCH, CHANGING WT IN SPOIL <br />4. TRIALS 1,8,9 TOE FAILURE, CIRCULAR SEARCH, CHANGING WT IN CLAY <br />5. TRIAL 10, RANDOM SEARCH <br />6. TRIALS 11-12 RANDOM SEARCH, C=0 IN CLAY (CONFIRMS CIRCULAR SURFACE IS LOW, TRIAL 4) <br />7 TRIALS 1.13.74 WATER SURFACE RISE, CIRCULAR SEARCH <br />8 TRIALS 15,16 WATER SURFACE RISE, CIRCULAR SEARCH, REPLACE CLAY <br />g TRIAL 17, CIRCULAR SEARCH, REPLACE CLAY <br />10.TRIAL 18, CIRCULAR SEARCH, REPLACE CLAY, EARTHQUAKE (0.07 FACTOR H 8 V) <br />
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