Laserfiche WebLink
Sanborn Creek Subsidence Page 26 September 2, 1997 <br /> Table 6. Maximu m surface subsidence predictions over gateroad <br /> pillars between longwall panels as the results of crushing and <br /> failure. <br /> Panel Local Gateroad Local Average Local <br /> Ident Panel Area Percent Pillar Maximum <br /> Depth Support Extraction Stress Surface <br />,_ width Lm,x Subsidence <br /> (ft) (m) (ft) (MPa) ($) (ft) <br /> <br /> #2 & 2210 674 695 90.9$ 165 98.3 9.11 <br /> #3 23900psi <br /> 2000 610 199 97.1 4.00 <br /> 21600psi <br /> 1525 965 114 93.9 3.73 <br /> 16500psi <br /> #3 & 2255 687 660 89.9$ 195 46.8 3.98 <br /> #9 21000psi <br />, 2000 610 129 95.9 3.86 <br />_ 18700psi <br /> 1500 457 106 43.0 3.66 <br /> 15900psi <br /> 1375 419 89 90.9 3.48 <br />`- 12900psi <br />! <br />~- #5 6 2160 658 700 90.5$ 163 48.2 4.09 <br /> #6 23600psi <br />_ 2000 610 151 97.2 9.02 <br /> 21900psi <br />~ <br />L_ 1500 957 113 93.7 3.72 <br /> 16900psi <br />C 1430 935 108 93.2 3.67 <br /> 15600psi <br />L <br />• 26 <br />