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The change in the pore pressure during an un-drained shear can be explained by ___________

(a) Lateral pressure

(b) Effective stress

(c) Pore pressure parameter

(d) Mohr’s circle

The question was asked by my school teacher while I was bunking the class.

Question is taken from Shear Strength of Cohesive Soil topic in chapter Shear Strength of Geotechnical Engineering I

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Correct choice is (c) Pore pressure parameter

Explanation: The change in the pore pressure due to change in the applied stress, during an un-drained, any be explained in terms of empirical coefficients called pore pressure parameters.

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