Board Exam Reviewers with Random Questions

Civil Engineering Reviewers

Geo / Hydro

A concrete pile having a diameter of 0.30 m is to be driven into a loose sand having a unit weight of 20 kN/ cu m. The pile has a length of 12 m. The coefficient of friction between the sand and pile is 0.4. Bearing capacity factor Nq = 80. The shaft lateral pressure factor K is equal to 0.90. The allowable load of the pile is 170 kN.
Find the factor of safety.



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