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PERMFILE108426
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PERMFILE108426
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Last modified
8/24/2016 10:00:54 PM
Creation date
11/24/2007 4:49:02 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981018
IBM Index Class Name
Permit File
Doc Date
5/13/2002
Doc Name
Geotechnical Investigation Deserado Coal Mine Waste Banks
Section_Exhibit Name
Illustration 21
Media Type
D
Archive
No
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F.S,=1.6 <br />F,S,=2,7 NOTES: <br />-Method of Analysts <br />Simplified Bishop's <br />I ~ -No piezometric Surface <br />-Static Analysis <br />-Pseudp-Static Analysts Indicated <br />As (E) <br />-Pseudo Static Force Equal to <br />0.05 g <br />3 - f -~ <br />I ~ 5 f ~ ~eal <br />~r~ ~ ~ Waste <br />~ / ~ Bank <br />~ ~ <br />TABLE <br />SUMMARY OF MINIMUM FACTORS OF SAFETY FOR <br />VARIOUS SLOPE GEOMETRIES AND COAL WASTE PROPERTIES <br /> i <br />Coal lJaste <br />Factor <br /> Geometry Material Properties' of <br />Height, Ft, Slope Angle ~,° C, psf Safety <br />30 3:1 22 200 1,6 <br /> 200 1.3E <br /> 600 2,1 <br /> 600 1,8E <br /> 5:1 22 200 2,5 <br /> 200 2,0E <br /> 600 3.5 <br /> 600 2,8E <br />60 3:t 22 200 1,6 <br /> 200 1,3E <br /> 600 2,1 <br /> 600 1.3E <br /> 5:1 22 200 2,5 <br /> 200 2,0E <br /> 600 3,4 <br /> 600 2,7E <br />l00 3:1 22 200 1,5 <br /> 200 1.3E <br /> 600 2,0 <br /> 600 1 , 7E <br /> 5:1 22 200 2,4 <br /> 200 1,9E <br /> 600 3.1 <br /> 600 2,5E <br />} Mater_fal Properties I <br />I X'95 pcf <br />60' ~=200 sf '•'•'Foundat~on Soils <br />P All Cases <br />Foundation Soil <br />Typical Critical Failure Surfaces <br />Coal Waste Bank Geometry <br />Scale: 1"=60' <br />~=115 pcf y <br />0=26° I <br />C=0 <br />X=115 pcf <br />m=26° <br />C=0 <br /> <br />GEOTECHNICAL INVESTIGATION <br />STABILITY ANALYSIS <br />DESERADO -COAL WASTE AREA <br />then and associate s, inc. <br />CONSULTING ENGINEERS <br />96 S 2UM1 DENVER, CO !0227 <br />.inD Number ODre~ F V ~ <br />21,358 Dec 1980 <br />
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