SIMPLE QUASI-DYNAMIC METHOD FOR IMPEDANCES OF PILE GROUP FOUNDATION

Abstract

A simple quasi-dynamic method is presented for computing the impedances of pile groups installed in a homogeneous surface stratum lying on rigid bedrock. This method for not only axial and lateral but also rotational and coupling impedances of pile groups is considered in the simple expression with exponents from stiff and short piles to flexible and long piles. This method is easily executed without much computaional effort by the simple expression. The verification of this method is performed from comparison with the results of the rigorous solution. This method is sufficiently accurate and readily useful in practical application.