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E <br />E <br />TABLE III -1 <br />SUBSIDENCE PREDICTIONS <br />MINING <br />METHOD <br />LONGWALL <br />AVG. <br />DEPTH (FT) <br />AVG. SEAM <br />HEIGHT (FT) <br />MAX. VERT. <br />SUBSIDENCE <br />(FT) <br />MAX. HORIZ. <br />TENSILE <br />STRAIN* <br />LONGWALL <br />LW1 <br />550 <br />8.5 <br />6.4 <br />7550 <br />D -SEAM <br />LW2 <br />700 <br />8.3 <br />5.9 <br />5500 <br />LW3 <br />765 <br />8.3 <br />5.6 <br />4800 <br />LW4 <br />925 <br />8.6 <br />5.2 <br />4100 <br />LW5 <br />990 <br />8.8 <br />5.1 <br />3850 <br />LW6 <br />1090 <br />9.2 <br />5.9 <br />3790 <br />LW7 <br />1210 <br />9.0 <br />5.2 <br />3000 <br />LW8 <br />1290 <br />8.5 <br />4.6 <br />2670 <br />LW9 <br />1400 <br />8.5 <br />4.2 <br />2400 <br />LW10 <br />650 <br />7.6 <br />6.6 <br />6600 <br />LW11 <br />500 <br />7.9 <br />7.0 <br />9100 <br />LW12 <br />400 <br />8.5 <br />7.7 <br />12400 <br />LW13 <br />1000 <br />6.5 <br />5.0 <br />3300 <br />LW14 <br />900 <br />6.8 <br />5.6 <br />4000 <br />LW15 <br />850 <br />6.4 <br />5.4 <br />4100 <br />LONGWALL <br />LW1B <br />280 <br />7.6 <br />6.8 <br />15900 <br />B -SEAM <br />LW213 <br />400 <br />7.7 <br />6.9 <br />11300 <br />LW36 <br />450 <br />7.8 <br />7.0 <br />10100 <br />LW413 <br />500 <br />7.9 <br />7.0 <br />9100 <br />LWSB <br />500 <br />7.9 <br />7.0 <br />9100 <br />LW66 <br />600 <br />7.8 <br />6.9 <br />7400 <br />LW713 <br />700 <br />8.0 <br />6.7 <br />6200 <br />LW86 <br />650 <br />7.1 1 <br />6.2 <br />6200 <br />* Micro - strain <br />Midterm Review (8/2002) III -12 <br />