Dynamic analysis of a single pile in time domain considering frequency dependence of soil resistance

In this paper, a method to estimate the deformation and load distribution of a single pile subjected to dynamic vertical load as well as horizontal load is proposed. The pile is modelled as beams and the soil is treated as springs and dashpots, in both vertical and horizontal directions. Considering frequency dependence of soil resistance three springs, three dashpots and lump soil mass proposed by Nogami and Konagai (1986, 1988) are employed for the soil model at each pile node in each direction. The proposed method is also able to analyse the static vertical and horizontal responses of the pile. The validity of the method is verified through wave matching analysis of the dynamic horizontal load test on an actual constructed pile.