Vertical vibration of a partially embedded pile group in transversely isotropic soils

The dynamic response of transversely isotropic soils is simulated by the analytical layer-element method, and each pile in the partially embedded pile group is modeled as a 1D vibration bar. Based on the displacement compatibility and force equilibrium at the pile-soil interface, the pile group-soil interaction equations are established and solved. The accuracy of the proposed method is confirmed by comparing with existing solutions. Finally, some representative results are presented to investigate the influence of embedment ratio, pile spacing and pile-soil modulus ratio on the dynamic impedances of partially embedded pile groups. (C) 2016 Elsevier Ltd. All rights reserved.