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~eam Longwall Subsidence Page 23• August 17, 1998
Table 5. 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,x/ 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 (flE)
Ratio Factor (ft)
Panel #1
Final No 640 1010 0.634 0.634 7.609 7529 0.73 5996 0.95 7153
E Side No 195m 1000 0.690 0.695 7.918 7418 0.72 5341 0.94 6973
E Side No 1500 0.927 0.385 5.390 3593 0.60 2879 1,65 5928
E Side Yes 2000 0.320 0.227 3.950 1981 0.73 1081 1.92 2849
E Side Yes 2500 0.256 0.165 1.782 713 0.65 963 2.11 1504
W Side No 1500 0.927 0.365 5.198 3965 0.80 2772 1,65 5717
W Side No 2000 0.320 0.227 3.450 1725 0.73 1259 1.92 3312
W Side No 2000 0.320 0.227 3.928 1719 0.73 1251 1,92 3291
W Side Yes 2500 0.256 0.165 1.782 713 0.65 463 2.11 1504
Start Yes 2510 0.255 0.163 1.760 701 0.63 992 2,12 1986
Panel #2
Final No 690 1305 0.990 0.455 6.193 4707 0.78 3671 1.38 6996
E Side No 195m 1500 0.927 0.385 5.540 3693 0.80 2955 1.65 6094
E Side No 2000 0.320 0.227 3.450 1725 0.73 1259 1.92 3312
E Side No 2000 0.320 0.227 3.428 1719 0.73 1251 1.92 3291
E Side Yes 2000 0.320 0.227 2.901 1450 0.73 1058 1.92 2784
E Side Yes 2500 0.256 0.165 1.782 713 0.65 463 2.11 1504
W Side No 1500 0.927 0.385 5.660 3773 0.80 3018 1.65 6225
W Side No 1500 0.927 0.385 5.891 3927 0.80 3142 1.65 6980
W Side No 1500 0.927 0.385 5.621 3797 0.80 2998 1.65 6183
W Side Yes 2000 0.320 0.227 2.901 1950 0.73 1058 1.92 2784
W Side Yes 2500 0.256 0.165 1.782 713 0.65 963 2.11 1509
Start Yes 2550 0.251 0.251 1.706 669 0.69 928 2.13 1425
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