Problems and countermeasures concerning engineering geological study on the liner system of municipal solid waste sanitary landfill in China

The practice of the engineering geological researches on the liner system of municipal solid waste sanitary landfill was commented from views of the material and structure of horizontal seepage liner, the coupling between leachate and rock-soil, and the regulation of leachate migration. Based on the above argumentation, the current main problems were analyzed. Then the countermeasures of engineering geological researches on the liner system were proposed and reported, and the importance to study the liner system on the basis of cross-study among environmental science, engineering geology and biochemistry was stressed.