11. A prestressed concrete pile, 474 mm in diameter, is to be driven in a clayey soil. The pile has a design capacity of 446 kN. Use FS = 3, unconfined compressive strength = 157 kPa. Compute the length (in m.) of the pile if the frictional constant is 0.8.

11. A prestressed concrete pile, 474 mm in diameter, is to be driven in a clayey soil. The pile has a design capacity of 446 kN. Use FS = 3, unconfined compressive strength = 157 kPa. Compute the length (in m.) of the pile if the frictional constant is 0.8.

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 18.14P: A steel pile (H-section; HP 360 1.491; see Table 18.1) is driven into a layer of sandstone The...

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Concept explainers

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

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