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REP18833
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REP18833
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Last modified
8/24/2016 11:47:39 PM
Creation date
11/27/2007 2:29:30 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Report
Doc Date
9/2/1997
Doc Name
PREDICTED LONGWALL SUBSIDENCE FOR THE SANBORN CRK MINE OXBOW CARBON MINERALS INC SOMERSET CO
Permit Index Doc Type
SUBSIDENCE REPORT
Media Type
D
Archive
No
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Sanborn Creek Subsidence Paqe 27 September 2, 1997 <br />Table 6 (Continu ed). Maximum surface subsidence predictions over <br />gateroad pillars between longwall panels as the results of crushing <br />and fail ure. <br />Panel Local Gateroad Local Average Local <br />Ident Panel Area Percent Pillar Maximum <br /> Depth Support Extraction Stress Surface <br /> Width Lm,,, Subsidence <br /> (ft) (m) (ft) MPa (~) (ft) <br /> <br />#6 ~ 2220 676 700 90.5$ 167 98.5 4.12 <br />#7 29300psi <br /> 2000 610 151 47.2 9.02 <br /> 21900psi <br /> 1500 457 113 93.B 3.72 <br /> 16900psi <br /> 1565 9'7'7 116 99.3 3.77 <br /> 17100psi <br />#8 & 2960 751 615 89.2$ 164 48.7 4.19 <br />#9 23700psi <br /> 2000 610 133 95.7 3.88 <br /> 19300psi <br /> 1500 457 100 42.3 3.60 <br /> 19500psi <br /> 1000 305 66 37.4 3.18 <br /> 9690psi <br /> 850 259 56 36.0 3.06 <br /> 8190psi <br />#9 6 2520 768 615 89.2$ 167 48.4 4.12 <br />#10 24300psi <br /> 2500 762 166 48.8 4.15 <br /> 29100psi <br /> 2000 610 133 96.2 3.93 <br /> 19300psi <br /> 1500 457 100 92.7 3.63 <br /> 14500psi <br /> 1060 323 70 38.6 3.28 <br /> 10200psi <br />27 <br />
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