A singly under-reamed, 10 m long, RCC pile (as shown in the figurebelow) weighing 22 kN with 340 mm shaft diameter and 700 mmunder - ream diameter is installed within stiff saturated silty clay(undrained shear strength is 60 kPa, adhesion factor is 0.3 and theapplicable bearing capacity factor is 9) to counteract the impact ofsoil swelling on a structure constructed above. Neglect suction andthe contribution of the under - ream to the adhesive shaft capacity.What would be the estimated ultimate tensile capacity of the pile?420 mm340 mm700 mm10 m

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Engineering

Civil Engineering

What would be the estimated ultimate tensile 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 18.10P

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Foundation construction

Question

A singly under-reamed, 10 m long, RCC pile (as shown in the figure
below) weighing 22 kN with 340 mm shaft diameter and 700 mm
under - ream diameter is installed within stiff saturated silty clay
(undrained shear strength is 60 kPa, adhesion factor is 0.3 and the
applicable bearing capacity factor is 9) to counteract the impact of
soil swelling on a structure constructed above. Neglect suction and
the contribution of the under - ream to the adhesive shaft capacity.
What would be the estimated ultimate tensile capacity of the pile?
420 mm
340 mm
700 mm
10 m

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