Pile–soil–pile interaction in pile groups with batter piles under dynamic loads

A simple analytical solution is developed for computing the dynamic interaction tensor for floating pile groups with batter piles. For this purpose, the governing differential equations are derived for an unloaded batter floating pile closely spaced to another loaded pile with the same properties. The reaction of soil against pile deformation is modeled by the springs and dashpots along the length of the pile. The soil is assumed linear viscous elastic and the pile behavior is linear elastic. The closed form solutions of governing equations are obtained using appropriate boundary conditions. The results are verified and compared with rigorous and approximate analytical solutions for vertical piles. The proposed method can be readily applied by engineers in the design of pile groups with batter piles.

► In this research we develop a simple analytical approach for computing the dynamic interaction tensor for floating pile groups with batter piles.
► We assume the presence of unloaded pile (receiver pile) in order to determine interaction factors.
► We compare our results with those obtained by other researches and they are in acceptable agreement.
► We do parameter study of interaction factors for batter piles and we develop applied graphs in order to design pile groups with batter piles.