Question

A single pile, 50 cm in diameter and 16 m long, in driven in clay having an average unconfined compressive strength of 100 kN/m${}^2$. The ultimate load carrying capacity of the pile, neglecting end bearing if any, and assuming shear mobilization of 0.75 around the pile, is nearly:

• A. 840 kN
• B. 900 kN
• C. 940 kN
• D. 1000 kN

Answer 1

The correct option is C 940 kN

$P=\alpha \left(\pi dL\right)C_u$

$=\left(0.75\right)\pi \left(0.5\right)16\left(\frac{100}{2}\right)$

$=942kN\underset{–}{\sim }940kN$