PERMFILE45400

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: PREDICTED D SEAM LONGWALL SUBSIDENCE /ELK CREEK MINE ABEL 1998
• From: Old Exhibit 2.05-E2 Part 6
• Section_Exhibit Name: Exhibit 2.05-E8 Part 4
• Media Type: D
• Archive: No

~~D~Seam Longwall Subsidence Page 25~ August 17, 1998
Table 5 (Continued). Maximum surface subsidence and horizontal strain predictions for
single longwall panel mining.
Panel Virgin Panel Local Local Local Local Local Local Max Horizontal Strain
Loca- Ground Width Panel Panel Profile Max Sm„/ Tens. Strain Comp. Strain
tion Yes or (ft) Depth Width/ Panel Sub Depth Factor Value Factor Value
No (ft) Depth Corr. Sm,x x 106 +E (flE) -E (~[E)
Ratio Factor (ft)
Panel #5
Final No 690 1160 0.552 0.550 8.855 7634 0.76 5802 1.29 9898
E Side Yes 195m 1500 0.427 0.385 4.782 3188 0.80 2550 1.65 5260
E Side Yes 2000 0.320 0.227 2.758 1379 0.73 1007 1.92 2698
E Side Yes 2500 0.256 0.165 1.782 713 0.65 463 2.11 1509
W Side Yes 1500 0.427 0.385 9.747 3165 0.80 2532 1.65 5222
W Side Yes 2000 0.320 0.227 2.738 1369 0.73 999 1.92 2628
W Side Yes 2500 0.256 0.165 1.782 713 0.65 963 2.11 1504
Start Yes 2530 0.253 0.166 1.706 709 0.69 454 2.12 1509
Panel #6
Final No 640 1000 0.690 0.695 9.869 9869 0.72 7105 0.94 9276
E Side Yes 195m 1500 0.427 0.385 9.747 3165 0.80 2532 1.65 5222
E Side Yes 2000 0.320 0.227 2.738 1369 0.73 999 1.92 2628
E Side Yes 2500 0.256 0.165 1.782 713 0.65 963 2.11 1509
W Side No 500 1.280 0.858 12.789 25568 0.65 16619 0.52 13295
W Side No 1000 0.690 0.695 9.809 9809 0.72 7059 0.94 9216
W Side No 1000 0.640 0.645 9.869 9869 0.72 7106 0.99 9277
W Side Yes 1000 0.690 0.695 8.591 8591 0.72 6186 0.94 8076
W Side Yes 1500 0.427 0.385 4.782 3188 0.80 2550 1.65 5260
W Side Yes 2000 0.320 0.227 2.778 1389 0.73 1014 1.92 2667
W Side Yes 2500 0.256 0.165 1.782 713 0.65 463 2.11 1504
Start Yes 2520 0.259 0.166 1.793 711 0.64 955 2.12 1507
25