3D contaminant migration model with consolidation dependent transport coefficients  

作　　者：Lu Huang Cheng-Gang Zhao Yan Liu Guo-Qing Cai 

机构地区：[1]School of Civil Engineering&Architecture,Southwest Petroleum University,610500 Chengdu,China [2]Department of Civil Engineering&Architecture,Beijing Jiaotong University,100044 Beijing,China

出　　处：《Acta Mechanica Sinica》2012年第1期151-163,共13页力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (50778013);the National Basic Research Program (973) of China (2010CB732100)

摘　　要：Soil consolidation would induce variations of its transport coefficients such as hydraulic conductivity and diffusion coefficient. This paper presents a study of the influence of barrier consolidation on transport coefficients, and a 3D transport model based on mixture theory is proposed for describing the liners that involve circular defects in the geomembrane. The elastoplastic ALPHA model is revised by using the spatially mobilized plane （SMP） criterion for simulating the deformation of the soils. Then, the 3D model coupling the nonlinear consolidation and contaminant advection-diffusion is solved using the finite element software ABAQUS. The results show that the importance of reducing the defect size in the geomembrane and the liner porosity to control the contaminant concentration increaseSoil consolidation would induce variations of its transport coefficients such as hydraulic conductivity and diffusion coefficient. This paper presents a study of the influence of barrier consolidation on transport coefficients, and a 3D transport model based on mixture theory is proposed for describing the liners that involve circular defects in the geomembrane. The elastoplastic ALPHA model is revised by using the spatially mobilized plane （SMP） criterion for simulating the deformation of the soils. Then, the 3D model coupling the nonlinear consolidation and contaminant advection-diffusion is solved using the finite element software ABAQUS. The results show that the importance of reducing the defect size in the geomembrane and the liner porosity to control the contaminant concentration increase

关 键 词：Porosity Contaminant transport. Consolidation Nonlinearity Elastoplasticity 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] X53[自动化与计算机技术—计算机科学与技术]