2011-09-30_PERMIT FILE - C1980007A ‎(7)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/30/2011
• Doc Name: Laboratory Test Data
• Section_Exhibit Name: Exhibit 82 Appendix B
• Media Type: D
• Archive: Yes

Void Ratio and % Settlement vs. Log of PressLM B -22 of 62
0.10 1.00 Pressure (tsf) 10.00 100.00
0.47
-2.5%
0.46
-1.5%
045
-05%
0.44
0.43
0.5%
0.42
0.41
0.40
2.5%
0.39
0.38
3.5%
_
v
o
E
0.37
4.5-2
a
0
U)
0.36
5.5%
0.35
0.34
6.5%
0.33
7.5%
0.32
8.5%
0.31
_
0.30
- -
9.5%
0.29
10.5%
0.28
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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