The results of a direct shear test on a specimen of dry sand are as follows: Normal stress = 96.6 kPa; shear stress at failure = 67.7 kPa. find the magnitude and directions of the principal stresses acting on a soil element within the zone of failure.

The results of a direct shear test on a specimen of dry sand are as follows: Normal stress = 96.6 kPa; shear stress at failure = 67.7 kPa. find the magnitude and directions of the principal stresses acting on a soil element within the zone of failure.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Shear Strength Of Soil

Section: Chapter Questions

Problem 10.10P

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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

Problem 4.4
The results of a direct shear test on a specimen of dry sand are as follows:
Normal stress = 96.6 kPa; shear stress at failure = 67.7 kPa.
find the magnitude and directions of the principal stresses acting on a soil
element within the zone of failure.

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