Question

A group of 20 by 10 piles will be constructed at 1.2 m on centre using 450 mm diameter, 15 m long closed pipe piles. If the formation that they pile group is constructed in consists of a firm clay (su=110 kPa), what is the limiting capacity of the pile group (kN)? (hint you have to check the failure mechanisms; Assume that there is NO frost zone - ie depth of embedment is L)

Answer 1