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Unformatted text preview: measurements (CUPP) are conducted on samples of remolded clay. The consolidation pressures are 1440 and 2880 psf. Using the axial strain, deviator, and pore pressure data in the attached spreadsheet file, determine the following for each test: a. The maximum principal stress difference (i.e., peak deviator stress) b. The maximum principal effective stress ratio ( σ 1 ’/ σ 3 ’) [also referred to as maximum obliquity] c. The maximum shear stress ( τ max ) [note that this is not the shear stress on the failure plane ( τ ff )] Also, using Mohr’s circles in σ-τ space (not p-q space), graphically determine Mohr-Coulomb shear strength parameters in terms of both total and effective stresses. (Note that this will require that the two axes be plotted to the same scale). Discuss how the results from Parts a and b contribute to your answer....
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- Fall '10
- Shear Stress, Triaxial shear test, shear strength parameters, consolidated-undrained triaxial shear