Development and verification of a soil–water coupled finite deformation analysis based on u–w–p formulation with fluid convective nonlinearity

摘要: Abstract Most soil–water coupled analyses of saturated soil are based on the u–p formulation, where a set equations is reduced by assuming that acceleration fluid phase relative to solid less than phase. Therefore, this analysis cannot be used for with dynamic water flow in highly permeable soil. This study aims present finite deformation method full or u–w–p formulation. differs from conventional methods following ways: (1) governing explicitly include equation motion phase, (2) convective term describe change configuration between two phases, and (3) moving/inclined discharge boundary directly implemented discretized equations. Herein, one/two dimensional seepage plane-strain results reported. In analysis, accelerating permeation pore obtained undrained constraint condition verified. migration high specimen, i.e., wave propagation rotational water, observed.