2014-08-19_PERMIT FILE - C1980007 ‎(10)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Haul Road Geotechnical Design Method
• Section_Exhibit Name: Exhibit 82 Appendix H
• Media Type: D
• Archive: No

1.25
Horizontal Distance (ft) (x 1000)
Mountain Coal Company RPE East HR -1:
Seepage & Stability Analysis
Figure 12
OSSA, Static
File Name: RPE Haul Road Stability_ FinalSurvey.gsz Name: Shale
6.55
- - -
Model: Shear/Normal Fn.
6.55
Last Saved Date: 5/10/2012
Name: Colluvium (Undrained) Unit Weight: 142.5 pcf
6.50
Factor of Safety: 1.25
Model: Mohr -Coulomb Unit Wt. Above Water Table: 135 pcf
6.50
Unit Weight: 135.4 pcf Strength Function: Shale (Halfway: FS/Residual)
Unit Wt. Above Water Table: 130 pcf
6.45
Cohesion: 487 psf
6.45
Phi: 14.8 °
Vol. WC. Function: Colluvium
6.40
Name: Carbonaceous Shale
6.40
Model: Shear/Normal Fn.
Unit Weight: 142.5 pcf
Name: Drainage Blanket
6.35
6.35
Unit Wt. Above Water Table: 135 pcf
Model: Mohr -Coulomb
Strength Function: Shale (FS, Lab)
Unit Weight: 120 pcf
6.30
Cohesion: 0 psf
° Haul
--------_ -- -----' 6 30
Phi: 30
---------------------
Road
6.25
------------------------------------
Name: Coal
-
0
Model: Mohr -Coulomb
_
6.20
C
6.20
Unit Weight: 85 pcf 7.5 gpm/50' = 3.342e-004 cfs/ft -
O
Unit Wt. Above Water Table: 82.4 pcf
6.15
Cohesion: 5000 psf
6.15
Phi: 30 °
c
c
6.10
6.10
6.05
6.05
W
6.00
6.00
5.95
5.95
5.90
5.90
5.85
5.85
5.80
Name: Sandstone
5.80
Model: Bedrock (Impenetrable)
5.75
5.75
5.70
5.70
0.26
0.36 0.46 0.56 0.66 0.76
0.86 0.96 1.06 1.16 1.26 1.36 1.46
1.56 1.66 1.76
Horizontal Distance (ft) (x 1000)