2014-08-19_PERMIT FILE - C1980007

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Modeled Geotechnical Characteristics Material
• Section_Exhibit Name: Exhibit 82 Tables
• Media Type: D
• Archive: No

Table 1 - Modeled Geotechnical Characteristics
Notes
1. ESSA: Effective Stress Stability Analysis (long-term conditions)
2. The fully -softened shear strength is a peak drained strength envelope that simulates the swelling and softening of a
medium stiff or stiffer, fissured clay. These are initially modeled parameters.
3. The fully -softened strength was used for the refuse in all cases; material for lab test was pulverized by ball milling; fully -
softened strength envelope used because as -received material classified as "Silty Gravel with Sand" in the lab based on grain
size analysis
4. The residual shear strength is a large -strain drained strength envelope that applies to previously sheared clays. These are
initially modeled parameters.
5. Assumed
6. This material was assumed to be impenetrable in the slope stability analysis
7. Non-linear failure envelope used; halfway between fully -softened and residual, LL=51.1%, 25%<CF<45% from lab testing
ESSA'
Moist
Sat. Unit
Unit
Dry Unit
Friction
Weight
Weight
Weight
Cohesion Angle
Perm.
Material
[ cf]
[ cf]
cf]
Porosity
[ sf] [deg-]
[cm/s]
Refuse
101.0
93.7
82.5
0.30
228 2.3 33.8 2,3
4.21 E-06
330 24.9
Colluvium
135.4
130.0
--
0.30
1.00E-07
4
0 22.0
Buttress
150.0
145.0
--
0.25
0 5 40 5
1.00E-01
Coal
85.0
82.4
--
0.20
5,000 5 30 5
1.00E-03
Sandstone
152.6
147.0
143.2
0.15
20,000 6 406
1.00E-04
Non -
Shale
142.5
135.0
126.7
0.25
0 7 linear 7
1.00E-06
Notes
1. ESSA: Effective Stress Stability Analysis (long-term conditions)
2. The fully -softened shear strength is a peak drained strength envelope that simulates the swelling and softening of a
medium stiff or stiffer, fissured clay. These are initially modeled parameters.
3. The fully -softened strength was used for the refuse in all cases; material for lab test was pulverized by ball milling; fully -
softened strength envelope used because as -received material classified as "Silty Gravel with Sand" in the lab based on grain
size analysis
4. The residual shear strength is a large -strain drained strength envelope that applies to previously sheared clays. These are
initially modeled parameters.
5. Assumed
6. This material was assumed to be impenetrable in the slope stability analysis
7. Non-linear failure envelope used; halfway between fully -softened and residual, LL=51.1%, 25%<CF<45% from lab testing