中文摘要：

建立了饱和多孔介质大变形分析的一种有限元-有限体积混合计算方法。将饱和多孔介质视为由固体骨架和孔隙水组成的两相体，其基本方程包括动力平衡方程和渗流连续方程。基于u-p假定和更新的Lagrange方法．饱和多孔介质的动力平衡方程在空间域内采用有限元方法进行离散，而渗流连续方程在空间域内则采用有限体积法进行离散。通过两个数值算例，一维有限弹性固结和动力荷载作用下堤坝动力响应的计算．验证了该方法的有效性。

英文摘要：

A finite element-finite volume hybrid method for large deformation analysis of porous media is proposed. The porous media is eonsideredas two-phase material with a solid skeleton and a pore fluid phase. Governing equations for the porous media consist of an equilibrium equation and a continuity equation. Based on the u-p formulation and updated Lagrangian method, the equilibrium equation is discretized in the space domain by finite element method, and the continuity equation by finite volume method. Two numerical examples including one-dimensional finite elastic consolidation and dynamic analysis of an embankment are used to illustrate the performance of the proposed method.