For a normally consolidated clay, these are the results of a drained triaxial test: confining pressure = 112 kPa deviator stress at failure = 175 kPa a) Find the angle of internal friction, ø’. b) Determine the angle θ that the failure plane makes with the major principal plane. c) Find the normal stress σ’ and the shear stress τf on the failure plane.

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Chapter2: Loads On Structures
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For a normally consolidated clay, these are the results of a drained triaxial test: confining pressure = 112 kPa deviator stress at failure = 175 kPa
a) Find the angle of internal friction, ø’.
b) Determine the angle θ that the failure plane makes with the major principal plane.
c) Find the normal stress σ’ and the shear stress τf on the failure plane.
d) Determine the effective normal stress on the plane of maximum shear stress.

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