Multiple choice

A group of 16 piles of 10 m length and 0.5 diameter is installed in a 10 m thick stiff clay layer underlain by rock. The pile-soil adhesion factor is 0.4; average shear strength of soil on the side on the sides is 100 kPa; undrained shear strength of the soil at the base is also 100 kPa.

Assuming 100% efficiency, the group side resistance is

  1. 5026.5 kN

  2. 10000.0 kN

  3. 10053.1 kN

  4. 20106.0 kN
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Group side resistance = Perimeter * Length * Adhesion * Shear Strength. Perimeter of group = 4 * (n*d + (n-1)*s). Assuming standard spacing, the calculation yields 10053.1 kN.

Keep practicing — related questions