A 10 m prestressed concrete pile 300 mm square is installed in clay with a water table at 5 m depth. The upper clay layer is 5 m thick, with a unit weight (y) of 16.5 kN/m³ and cohesion of, c’ = 50 kPa. The lower clay layer has a unit weight (y) of 18.3 kN/m³ and cohesion of, c’ = 80 kPa. Design the allowable pile capacity (Qall) with factor of safety of 2.

A 10 m prestressed concrete pile 300 mm square is installed in clay with a water table at 5 m depth. The upper clay layer is 5 m thick, with a unit weight (y) of 16.5 kN/m³ and cohesion of, c’ = 50 kPa. The lower clay layer has a unit weight (y) of 18.3 kN/m³ and cohesion of, c’ = 80 kPa. Design the allowable pile capacity (Qall) with factor of safety of 2.

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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