A concrete pile of 45 cm diameter was driven into sand to medium density to a depth of 15m. The average unit weight of soil along the length of the pile is 17.5 kN/m' and the average angle of friction is 30°. Assume the water table is at great depth. Calculate the ultimate bearing capacity of the pile.

A concrete pile of 45 cm diameter was driven into sand to medium density to a depth of 15m. The average unit weight of soil along the length of the pile is 17.5 kN/m' and the average angle of friction is 30°. Assume the water table is at great depth. Calculate the ultimate bearing capacity of the pile.

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 18.18P

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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

41 7 l.
۱ ۱:۱ ۱
A concrete pile of 45 cm diameter was driven into sand to medium
density to a depth of 15m. The average unit weight of soil along the
length of the pile is 17.5 kN/m and the average angle of friction is
30°. Assume the water table is at great depth. Calculate the ultimate
bearing capacity of the pile.

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