BEM analysis of laterally loaded pile groups in multi-layered transversely isotropic soils

Based on an analytical layer-element solution of multi-layered transversely isotropic soils, a boundary element method is adopted to analyze laterally loaded fixed-head pile groups. The pile–soil–pile interaction is considered directly by coupling the global stiffness matrix of pile groups and the soil׳s global flexibility matrix at the pile–soil interface. Good and reasonable agreement is obtained between the proposed and published solutions. A typical numerical example is presented to study the behavior of laterally loaded pile groups embedded in multi-layered transversely isotropic soils.