A group of nine piles 300 mm in diameter is driven into a clay layer 16 m thick with rock below the clay layer. The pile is 9 m long and spaced 500 mm centres. The clay has the following properties: - an undrained shear strength of 100 kN/m2, adhesion coefficient α=0.5, Eu =40 MN/m2 and mv = 0.09 m2/MN. The pore water coefficient A= 0.38. The dead load carried by the pile group is 2300 kN and the live load is 500 kN. Verify if the ultimate and serviceability limit states for an allowable settlement of 30 mm are satisfied.

A group of nine piles 300 mm in diameter is driven into a clay layer 16 m thick with rock below the clay layer. The pile is 9 m long and spaced 500 mm centres. The clay has the following properties: - an undrained shear strength of 100 kN/m2, adhesion coefficient α=0.5, Eu =40 MN/m2 and mv = 0.09 m2/MN. The pore water coefficient A= 0.38. The dead load carried by the pile group is 2300 kN and the live load is 500 kN. Verify if the ultimate and serviceability limit states for an allowable settlement of 30 mm are satisfied.

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 18.21P: Refer to Figure 18.26b. Let L = 15.24 m, fill = 17.29 kN/m3, sat(clay) = 19.49 kN/m3, clay = 20, Hf...

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