A concrete pile 458 mm by 458mm square cross section is embedded in a saturated clay. The length of the embedment is 16 m. The undrained cohesion, Cu of clay is 60 kN/m2, and the unit weight of clay is 18 kN/m2. Use a factor of safety of 5 to determine the allowable load the pile can carry

Given data Cohesion, C=60kN/m2 unit weight of clay=18kN/m2 Factor of safety=5

Answered: ndrained cohesion, Cu of clay is 60…

ndrained cohesion, Cu of clay is 60 kN/m2, and the unit weight of clay is 18 kN/m2. Use a factor of safety of 5 to determine the allow

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Pile Foundation

Section: Chapter Questions

Problem 18.10P

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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.

Question

A concrete pile 458 mm by 458mm square cross section is embedded in a saturated clay. The length of the embedment is 16 m. The undrained cohesion, C_u of clay is 60 kN/m², and the unit weight of clay is 18 kN/m². Use a factor of safety of 5 to determine the allowable load the pile can carry

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