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

Seam Longwall Subsidence Page ~ 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 Hori zontal 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 (~E) -E (~E)
Ratio Factor (ft)

Panel #15
Final No 690 630 1.016 0.832 5.658 8981 0.52 4670 0.53 9760
E Side No 195m 1500 0.927 0.385 3.003 2002 0.80 1602 1.65 3303
E Side No 2000 0.320 0.227 2.247 1129 0.73 821 1.92 2158
E Side No 2000 0.320 0.227 2.611 1306 0.73 953 1.92 2508
E Side Yes 2000 0.320 0.227 2.297 1129 0.73 910 1.92 2392
W Side No 1000 0.690 0.695 9.451 9951 0.72 3205 0.99 9189
W Side No 1500 0.927 0.385 3.658 2439 0.80 1950 1.65 9029
W Side No 1500 0.927 0.385 9.081 2721 0.80 2177 1.65 9490
W Side No 1500 0.427 0.385 4.659 3106 0.80 2485 1.65 5125
W Side Yes 2000 0.320 0.227 2.023 1012 0.73 739 1.92 1993
Start Yes 2100 0.305 0.208 1.709 811 0.74 600 2.05 1663
Panel #16
Final No 690 320 2.000 0.882 5.968 17088 0.65 11107 0.51 8715
E Side Yes 195m 1000 0.640 0.695 6.128 6128 0.72 9412 0.94 5760
E Side Yes 1500 0.427 0.385 4.081 2721 0.80 2177 1.65 9490
E Side Yes 1500 0.427 0.385 4.659 3106 0.80 2985 1.65 5125
E Side Yes 1500 0.927 0.385 3.430 2287 0.80 1830 1.65 3779
W Side No 1000 0.690 0.695 4.451 9451 0.72 3205 0.99 9189
W Side No 1500 0.927 0.385 9.193 2968 0.80 2374 1.65 9897
W Side No 2000 0.320 0.227 1.961 980 0.73 715 1.92 1882
Start Yes 2080 0.308 0.215 1.664 800 0.75 600 2.00 1600
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