7.2 A specimen of normally consolidated clay (= 28°) was consolidated under achamber-confining pressure of 280 kN/m². For a drained test, by how much docsthe axial stress have to be reduced to cause failure by axial extension?17.3 A normally consolidated clay specimen (= 31°) was consolidated under achamber-confining pressure of 132 kN/m². Failure of the specimen was caused byan added axial stress of 158.1 kN/m in an undrained condition. Determine &u, Afand the pore water pressure in the specimen at failure.>

For pore water pressure we have the concept of effective stress

2 7.3 A normally consolidated clay specimen (d=31°) was consolidated under a chamber-confining pressure of 132 kN/m². Failure of the specimen was caused by an added axial stress of 158.1 kN/m² in an undrained condition. Determine , A and the pore water pressure in the specimen at failure.

2 7.3 A normally consolidated clay specimen (d=31°) was consolidated under a chamber-confining pressure of 132 kN/m². Failure of the specimen was caused by an added axial stress of 158.1 kN/m² in an undrained condition. Determine , A and the pore water pressure in the specimen at failure.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.

Question

7.2 A specimen of normally consolidated clay (= 28°) was consolidated under a
chamber-confining pressure of 280 kN/m². For a drained test, by how much docs
the axial stress have to be reduced to cause failure by axial extension?
1
7.3 A normally consolidated clay specimen (= 31°) was consolidated under a
chamber-confining pressure of 132 kN/m². Failure of the specimen was caused by
an added axial stress of 158.1 kN/m in an undrained condition. Determine &u, Af
and the pore water pressure in the specimen at failure.
>

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