In a triaxial test for a cohesive soil sample, when the principal stresses are 4698.58 kPa and 69.28 kPa, the soil fails along a plane making an angle of 65.54° with the horizontal. What is the cohesion of the soil in kPa? Show your solution.

In a triaxial test for a cohesive soil sample, when the principal stresses are 4698.58 kPa and 69.28 kPa, the soil fails along a plane making an angle of 65.54° with the horizontal. What is the cohesion of the soil in kPa? Show your solution.

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter15: Foundations On Difficult Soil

Section: Chapter Questions

Problem 15.2P

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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

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