Abstract
Deep embedded and large diameter steel pipe piles have been popularly used in the port facilities nowadays for supporting large vertical load, because of growing size of port facility or changing structural types. Estimation of bearing capacity of large diameter and deep embedded piles is a complex problem such that bearing capacity is increased because of deep embedment and bearing capacity is decreased because of decrement of plugging effect by using large diameter piles. In this paper, factors which influence the method of estimating the inner frictional force of the open-ended pile were investigated. As a result, it was found that inner foil height greatly influenced the estimation of the inner frictional force.
