2014-08-19_PERMIT FILE - C1980007 ‎(4)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Laboratory Test Data
• Section_Exhibit Name: Exhibit 82 Appendix B
• Media Type: D
• Archive: No

Void Ratio and % Settlement vs. Log of Pressure
0.10 1.00 Pressure (tsq 10.00 100.00
0.47
-2.5%
0.46
0.45
0.44
-0.5%
0.43
0.42
0.41
0.40
2.5%
0.39
3.5%
m 0.38
M
�
Q
0.37
'v
4.5
>° 0.36
5.5%
0.35-
6.5%
0.34
f
0.33
7.5%
0.32
8.5
0.31
0.30-
--9.5%
0.29-
0.28-
10.5%
0.27
Project: West Elk Mine RPE Expansion - #06261003
Date: 8/14/09
Sample #: 3
Boring #: East End
Depth ft:
Job #: 7110
Soil Type: Coal
Initial W/C (%): 13.5
Dry Density (pcf): 72.3
LL: 31.5 PL: 22.2 PI: 9.3
Gs: 1.66
Organic Content (%): 36.7
Initial Height (in.): 0.900
Diameter (in.): 2.506
e°= 0.434
Preconsolidation Pressure (Pc): 2.8 tsf
Compression Index (Cc): 0.15
Recompression Index (Cr): --0.02
Remarks: Specimen compacted to approximately 90% of maximum standard proctor density.
OIL
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