A circular pile is to be driven upto a depth of 10 m at a constructionsite. The average surface area of the pile is 2 m2 per meter length.The soil at the site is homogeneous sand, having effective frictionangle of 30°. The ground water table (GWT) is at a depth of 4 m belowthe ground surface. The unit weights of the soil above and below theGWT are 18 kN/m3 and 20 kN/m3 respectively. Takek = 0.9 and theangle of wall friction (6) = 28°. The total axial frictional resistancemobilized on the pile against the driving is%3DkN.(Y= 9.81 kN/m³)%3D

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A circular pile is to be driven upto a depth of 10 m at a construction site. The average surface area of the pile is 2 m2 per meter length.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter15: Retaining Walls, Braced Cuts, And Sheet Pile Walls

Section: Chapter Questions

Problem 15.22P

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Concept explainers

Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.

Question

A circular pile is to be driven upto a depth of 10 m at a construction
site. The average surface area of the pile is 2 m2 per meter length.
The soil at the site is homogeneous sand, having effective friction
angle of 30°. The ground water table (GWT) is at a depth of 4 m below
the ground surface. The unit weights of the soil above and below the
GWT are 18 kN/m3 and 20 kN/m3 respectively. Takek = 0.9 and the
angle of wall friction (6) = 28°. The total axial frictional resistance
mobilized on the pile against the driving is
%3D
kN.
(Y
= 9.81 kN/m³)
%3D

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