PERMFILE138031

• Permit No: C1981010A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: WEST HORSE GULCH HYDROLOGIC MODEL
• Section_Exhibit Name: APPENDIX Q SECTION XXXV
• Media Type: D
• Archive: Yes

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Consolidated Undrained Triaxial Lab Data
From COLDER ASSOC/AYES !NG
Project: MONTGOMERY WATSON/LAB TEST/CO
Project Number: 003-21 ] 1-1
Explination of Terminology
Mohr-Coulomb Failure Criteria:
T1r = c'+as'tatt ~'
Tg=c+vgtatt~
Where:
c', c = effective and total cohesive intercept
~', ~ =effective and total friction angle
Ter = Shear Strength on the failwe swfxe at failure
6~~ 6^- effective and total normal stress on the failwe swfxe at failwe
Stress Path Suace:
6t-6s ~ dt+C~:
9= 2 P= 2
ere'
q = shear stres,
p', p = mean e$~eclive and total stress
6'' ~ 6' =Effective and Total Axial Stress
6~' ~ 6' = Effective and Total Confining Stress
y=n+ptanW
4 = a+ ~P - uo)tan W
6~+6.:
P 2
Where:
a', a =intercept of the q-axis in effective stres, of total strew space
~' l~ =angle of the failure line in effective stress of total stress space
p' = mean effective stye„
p-Uo = mean total minus the initial pore pressure
u~th the relationship bebveen Vt and ~ and a and c are as follows:
tan(yl) = sm(~)

Prb,ird nn O!i/1111
Uoldei Assocmtes Inc.
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