饱和黏土一维固结变形与无机污染物迁移过程耦合机理研究

项目名称： 饱和黏土一维固结变形与无机污染物迁移过程耦合机理研究

项目编号： No.41272311

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 刘志彬

作者单位： 东南大学

项目金额： 85万元

中文摘要： 土体固结变形与污染物迁移耦合问题是当前环境岩土工程研究领域的热点和难点课题之一，以往理论模型有时因对耦合机理做出不切实际的简化假设而产生较大的分析误差。本项目针对不同类型饱和黏土，系统研究其一维固结变形与无机污染物迁移的耦合机理。本项目主要围绕以下四方面内容进行研究：①饱和黏土一维固结变形对无机污染物迁移行为的影响；②无机污染物迁移对饱和黏土一维固结变形特性的影响；③耦合过程中无机污染物-黏土相互作用的微观结构与物理化学分析；④基于电阻率成像技术的饱和黏土一维固结与无机污染物迁移耦合过程定量分析与评价。项目研究成果将为饱和黏土固结变形与污染物迁移耦合过程的理论分析提供丰富的试验数据，为相关工程问题的设计与环境影响评价提供重要的科学依据和理论支撑。

中文关键词： 耦合机理；饱和黏土；一维固结；污染物运移；电阻率

英文摘要： The problem of coupled process between soil consolidation and contaminant transport has been a hot and difficult research subject in the research field of environmental geotechnical engineering recently. However, traditional theoretical models sometimes lead to relatively great analysis errors due to unreasonable simplification and hypothesis about the coupled mechanism. The project will systematically make research on the coupled mechanism of one-dimensional consolidation and inorganic transport for different type of saturated clay. In this research, the following four aspects will be mainly focused on. ① Effect of one-dimensional consolidation of saturated clay on the transport behavior of inorganic contaminant. ② Effect of inorganic contaminant transport on the one-dimensional consolidation property of saturated clay. ③ Microstructural and physico-chemical analysis of the interaction between inorganic contaminant and clay during the coupled process. ④ Quantitative analysis and evaluation of the coupled process between one-dimensional consolidation of saturated clay and inorganic contaminant transport on the basis of electrical resistivity tomography. Research achievements of the project will not only supply fruitful test data for theoretical analysis of the coupled process between consolidation deformation of

英文关键词： coupled mechanism；saturated clay；one-dimensional consolidation；contaminant transport；electrical resistivity