For a soil, the effective angle of internal friction φ′ was found to be 14° and the cohesion component c′ was 46 kPa. The soil was tested in consolidated drained triaxial condition when the failure stress (σ1 – σ3) was found to be 132 kPa. (a) What was the confining pressure σ3 for this test? (b) Estimate the direction of potential failure planes in the specimen relative to the major principal stress plane. (c) What is the normal stress σf and the shear stress τfon the failure plane in (b)
For a soil, the effective angle of internal friction φ′ was found to be 14° and the cohesion component c′ was 46 kPa. The soil was tested in consolidated drained triaxial condition when the failure stress (σ1 – σ3) was found to be 132 kPa. (a) What was the confining pressure σ3 for this test? (b) Estimate the direction of potential failure planes in the specimen relative to the major principal stress plane. (c) What is the normal stress σf and the shear stress τfon the failure plane in (b)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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For a soil, the effective angle of internal friction φ′ was found to be 14° and the cohesion component c′ was 46 kPa. The soil was tested in consolidated drained triaxial condition when the failure stress (σ1 – σ3) was found to be 132 kPa.
(a) What was the confining pressure σ3 for this test?
(b) Estimate the direction of potential failure planes in the specimen relative to the major principal stress plane.
(c) What is the normal stress σf and the shear stress τfon the failure plane in (b)?
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