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在非饱和土多孔介质力学理论的基础上,根据电荷守恒原理、质量守恒原理、应力平衡方程、达西定律以及欧姆定律,推导了考虑电场、渗流场以及应力场相互耦合作用的电渗固结理论方程。采用Galerkin加权余量法对电渗固结理论方程进行空间离散,得到其有限元计算列式,编制了相应的计算程序,对室内电渗模型试验进行了数值模拟。结果表明,数值模拟与试验结果基本吻合,表明该电渗固结理论方程能够定量预测电渗固结过程中土体的孔隙水压力和位移发展规律。
Based on the mechanics theory of porous media in unsaturated soils, the electroosmotic consolidation considering the interaction of electric field, seepage field and stress field is deduced according to the principle of conservation of charge, principle of mass conservation, stress balance equation, Darcy’s law and Ohm’s law Theoretical equation. The Galerkin weighted residual method is used to discretize the theoretical equations of electroosmosis consolidation, and the finite element calculation formula is established. The corresponding calculation program is compiled and the indoor electroosmosis model test is numerically simulated. The results show that the numerical simulation is in good agreement with the experimental results, indicating that the theoretical equation of electroosmosis consolidation can quantitatively predict the pore water pressure and displacement in the process of electroosmosis consolidation.