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Sanborn Creek Subsidence Page 28 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 Lam, Subsidence <br /> (ft) (m) (ft) (MPa) ($) (ft) <br /> <br />#11 ~ 2360 719 615 89.2$ 157 47.7 9.06 <br />#12 22800psi <br /> 2000 610 133 95.7 3.89 <br /> 19300psi <br /> 1500 957 100 92.3 3.60 <br /> 19500psi <br /> 1000 305 66 37.4 3.18 <br /> 9690psi <br /> 1390 408 89 90.9 3.98 <br /> 12900psi <br />#12 & 2360 719 590 86.7$ 150 97.2 4.01 <br />#13 21700psi <br /> 2000 610 127 45.2 3.89 <br /> 18900psi <br /> 1500 457 95 41.7 3.55 <br /> 13800psi <br /> 1000 305 63 36.9 3.17 <br /> 9210psi <br /> 1510 460 96 91.8 3.56 <br /> 13900psi <br />28 <br />