A pile of diameter 250 mm is installed in a soil strata with a recently filled layer of clay of 3 m depth. The unit cohesion of the material is 18 kN/m² and unit weight of soil is 15 kN/m². The negative skin friction on the pile is equal to. (assume adhesion factor = 0.4)

A pile of diameter 250 mm is installed in a soil strata with a recently filled layer of clay of 3 m depth. The unit cohesion of the material is 18 kN/m² and unit weight of soil is 15 kN/m². The negative skin friction on the pile is equal to. (assume adhesion factor = 0.4)

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Sheet-pile Walls

Section: Chapter Questions

Problem 18.2P

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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.

Question

A pile of diameter 250 mm is installed in
a soil strata with a recently filled layer of
clay of 3 m depth. The unit cohesion of the
material is 18 kN/m² and unit weight of soil
is 15 kN/m². The negative skin friction on
the pile is equal to. (assume adhesion factor
= 0.4)

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