Laserfiche WebLink
"Seam Longwall Subsidence Page 2~ August 17, 1998 <br />Table 5 (Continued). Maximum surface subsidence and horizontal strain predictions for <br />single longwall panel mining. <br />Panel Virgin Panel Local Local Local Local Local Local Max Horizontal Strain <br />Loca- Ground Width Panel Panel Profile Max Sm,„/ Tens. Strain Comp. Strain <br />tion Yes or (ft) Depth Width/ Panel Sub Depth Factor Value Factor Value <br /> No (ft) Depth Corr. Smax x 106 +E (,llE) -E (flE) <br /> Ratio Factor (ft) <br />Panel #11 <br />Final No 640 1020 0.652 0.638 6.635 6505 0.72 4689 0.91 5920 <br />E Side Yes 195m 1500 0.927 0.385 9.366 2911 0.80 2329 1.65 4603 <br />E Side Yes. 2000 0.320 0.227 3.065 1532 0.73 1118 1.92 2991 <br />W Side No 1500 0.427 0.385 9.351 2901 0.80 2321 1.65 9787 <br />W Side No 1500 0.427 0.385 4.505 3003 0.80 2402 1.65 9955 <br />W Side Yes 1500 0.927 0.385 4.262 2841 0.80 2329 1.65 9803 <br />W Side Yes 2000 0.320 0.227 3.024 1512 0.73 1104 1.92 2903 <br />Start Yes 2075 0.308 0.218 1.668 809 0.79 595 1.99 1560 <br />Panel #12 <br />Final No 690 1150 0.557 0.555 5.717 9971 0.77 3828 1.20 5965 <br />E Side No 195m 1500 0.927 0.385 9.351 2901 0.80 2321 1.65 4787 <br />E Side Yes 1500 0.927 0.385 9.059 2703 0.80 2162 1.65 4960 <br />E Side Yes 2000 0.320 0.227 2.513 1256 0.73 917 1.92 2912 <br />W Side No 1500 0.927 0.385 4.004 2669 0.80 2135 1.65 9409 <br />W Side Yes 1500 0.927 0.385 4.089 2726 0.80 2181 1.65 9998 <br />W Side Yes 1500 0.427 0.385 3.985 2657 0.80 2126 1.65 4384 <br />W Side Yes 2000 0.320 0.227 2.962 1981 0.73 1081 1.92 2844 <br />Start Yes 2215 0.289 0.185 1.332 601 0.66 909 2.05 1232 <br />26 <br />