Question: Consider the clay sample in Problem 12.10. A consolidated-undrained triaxial test was conducted on the same clay with a chamber pressure of 103 k N/m2.

Consider the clay sample in Problem 12.10. A consolidated-undrained triaxial test was conducted on the same clay with a chamber pressure of 103 k N/m2. The pore pressure at failure (Δud)f = 33 kN/m2. What would be the major principal stress, σ'1, at failure?

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