Abstract
This study presents a FEM-BEM coupled method to research the dynamic response of a fixed-head pile group in multi-layered transversely isotropic media subjected to transient horizontal loadings. Piles are discretized into finite elements on the basis of Euler-Bernoulli model. Fundamental transient solutions of the media derived by the analytical element method are taken as kernel boundary element functions. Then pile-soil interaction solutions are obtained using the FEM-BEM coupled method. Numerical examples are carried out to confirm the correctness of the theoretical derivation and to discuss further the influence of length-diameter ratio, transversely isotropic characteristics and stratification of the media on the transient horizontal response of the pile group.
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