填埋场黏土垫层是近十几年发展起来的一种新型防渗材料。红黏土具有较高的天然含水量、液限、塑限及力学性能。红黏土同时具有吸附能力强和低透水性等特点。将其作为垃圾场防渗垫层材料具有可行性和现实意义。文章对红黏土应用于垃圾场防渗垫层的研究现状进行了分析,指出了国内外研究的不足,并提出将来的研究方向。 Landfill clay cushion is developed over the past decade a new type of impermeable material. Red clay has high natural water content, liquid limit, plastic limit and mechanical properties. Red clay also has the characteristics of strong adsorption capacity and low water permeability. It is feasible and practical significance to use it as a seepage-proof cushion material for landfills. This paper analyzes the research status of red clay used in the seepage-proof cushion of landfills, points out the deficiencies of the research at home and abroad, and proposes future research directions.