PERMFILE68502

• Permit No: C1981033
• IBM Index Class Name: Permit File
• Doc Date: 6/4/1986
• Section_Exhibit Name: INTERACTION OF SUBSIDENCE APPENDIX A
• Media Type: D
• Archive: No

n
lJ
TABLE A15
COAL SEAM PROPERTIES
SEAM/ SAMPLE/ COMPRESSIVE ELASTIC
FORM- HOLE # STRENGTH MODOLUS
ATION (psi) (PSI x 10 )
-------
F/9 -----------
73SOM56 --------------
2290 -----------
0.36
F/9 72SOM56 1970 0.26
F/9 71SOM56 2880 0.34
F/9 70SOM56 3650 0.42
E/11 65SOM63 1716 0.37
E/11 61SOM63 3600 0.35
E/11 69SOM56 3480 0.45
E/11 68SOM56 3680 0.50
D/13 64SOM63 2460 0.37
C/17 60MG10 1010 1.43
C/17 67MG9 3550 0.41
C/17 66MG9 2760 0.83
TENSILE UNIT
STRENGTH WEIGHT DEPTH
(psi) (pcf) (ft)
35 78.6 1053.0
217 78.3 1054.3
78.2 1055.6
160 85.2 1057.0
83.8 827.0
230 76.3 832.6
310 80.7 1147.0
440 82.6 1148.0
210 80.0 900.0
83.4 747.0
220 80.0 986.6
230 82.2 987.6
•