When an unconfined compression testwais conducted on a cylindrical soilsample, it failed under an xial stress of120 kN/m2. The failure plane makes andingle of 50° with theDetermine the cohesion and the angle ofinternal friction of the soil.horizontal.

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When an unconfined compression test was conducted on a cylindrical soil sample, it failed under an xial sitress of 120 kN/m2 The failure plane makes an angle of 50° with the horizontal. Determine the cohesion and the angle of internal friction of the soil.

When an unconfined compression test was conducted on a cylindrical soil sample, it failed under an xial sitress of 120 kN/m2 The failure plane makes an angle of 50° with the horizontal. Determine the cohesion and the angle of internal friction of the soil.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter15: Retaining Walls, Braced Cuts, And Sheet Pile Walls

Section: Chapter Questions

Problem 15.19P: Refer to Figure 15.27a. For the braced cut, H = 6 m, Hs = 2 m, s = 16.2 kN/m3, angle of friction of...

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Concept explainers

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

Question

When an unconfined compression test
wais conducted on a cylindrical soil
sample, it failed under an xial stress of
120 kN/m2. The failure plane makes an
dingle of 50° with the
Determine the cohesion and the angle of
internal friction of the soil.
horizontal.

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