NUMERICAL SIMULATION OF ELECTRO-OSOMOSIS IN SOFT CLAY
Electro-osmosis consolidation seems to be a potential technique for improvement of soft clay. The traditional electro-osmosis theory cannot provide satisfied solution since the hypothesis of constant parameters of mechanical and electrical properties of soils. In this paper, FEM software is developed to couple the Lapalaces equation for electrical field with Biots consolidation equation, and the displacement of soil mass and pore-water pressure can be obtained during electro-osmosis process. The non-linear variety of hydraulic permeability of soil mass during consolidation is incorporated in the control equations. The boundary conditions for electrical field, seepage flow and displacement can be adequately simulated. The calculation results agree well with the monitoring data from analytical model. The software can predict the displacement behavior of soil mass and provide useful data for system design of electro-osmosis treatment.
electro-osmosis consolidation pore-water pressure FEM Biots theory
Liming HU Wei-Ling WU Zhao-Qun WU
Department of Hydraulic Engineering, State Key Laboratory of HydroScience and Engineering, Tsinghua University, China
国际会议
International Symposium on Geoenvironmental Engineering(国际环境岩土工程研讨会
杭州
英文
407-412
2009-09-08（万方平台首次上网日期，不代表论文的发表时间）