A 15m precast concrete pile is to be lifted. If the unit weight of concrete is 23.54kN/m3 and the section of the pile measures 400mm by 400mm. Determine the location of two (2) pickup points from the ends for minimum shearing stress. A.2.93m B.4.39m C.3.75m D.3.11m

A 15m precast concrete pile is to be lifted. If the unit weight of concrete is 23.54kN/m3 and the section of the pile measures 400mm by 400mm. Determine the location of two (2) pickup points from the ends for minimum shearing stress. A.2.93m B.4.39m C.3.75m D.3.11m

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 18.4P: A 400-mm diameter and 15 m long concrete pile is driven into a sand where = 18.0 kN/m3 and = 31....

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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

SITUATION. A 15m precast concrete pile is to be lifted. If the unit weight of concrete is 23.54kN/m3 and the section of the pile measures 400mm by 400mm. Determine the location of two (2) pickup points from the ends for minimum shearing stress.

A.2.93m B.4.39m

C.3.75m D.3.11m

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