a sand sample is subjected to direct shearing testing at its normal in (situ) water content. two test are performed . for one of the test the sample when the normal stress is 4000 psf. in the second the sample shears at a stress of 4500 psf when the normal stress is 6000 psf

a sand sample is subjected to direct shearing testing at its normal in (situ) water content. two test are performed . for one of the test the sample when the normal stress is 4000 psf. in the second the sample shears at a stress of 4500 psf when the normal stress is 6000 psf

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

3. A sand sample is subjected to direct shear testing at its normal (in situ) water content. Two tests are
performed. For one of the test, the sample when the normal stress is 4000 psf. In the second test,
the sample shears at a stress of 4000 psf when the normal stress is 6000 psf. From these data,
Determine the:
a. Angle of internal friction. (10pts)
b.
Shear stress at a depth of 12 ft. If the unit weight of soil is 150 pcf. (10pts)

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