2001-12-11_PERMIT FILE - C1980007A ‎(2)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: By TOC Deleted
• Section_Exhibit Name: Exhibit 40 Geotechnical Analysis B & F Seams
• Media Type: D
• Archive: Yes

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TABLE 3.4.A.15
PILLAR STRENGTH INPUT FOR EXPAREA ANALYSIS
April 1989

Pillar
Width x Lehgth
(ft x ft)
Peak
Strength
(psi)
Residual
Strength
(psi) Post
Failure
Slope
6
(psi x 10 )
15 x 100 1,150 700 2.14
30 x 100 2,7.10 700 .24
35 x 100 2,340 N/A N/A
40 X 100 2,430 700 .17
45 X 100 2,510 N/A N/A
20 X 100 1,700 700 .33
60 X 80 2,730 1,950 .12
60 X 100 2,790 1,950 .12
60 X 120 2,830 1,950 .12
65 X 100 2,830 2,060 .14
50 X 80 2,610 1,325 .14
' S0 X 100 2,680 1,325 .14
80 X 100 2,920 2,380 .19
90 X 100 2,970 2,600 .19
17,0 X 100 3,100 2,600 .07
80 ft barrier 3,130 2,600 .19
200 ft and
wider barriers
3,420
N/A
DI/A
•