INTERFACE FRICTIONAL PROPERTY BETWEEN SAND AND GEOMEMBRANE
Interface instability between HDPE geomembrane and sand is a main reason for landfill structural failure on lining interface. Though frictional coefficient of textured geomembrane is large, it is easy to be splited by the huge tension force accumulated on the landfill lined slope. A novel concept of reinforced HDPE geomembrane is proposed in this paper. A series of direct shear tests were carried out to investigate interfacial characteristics between sand/geomembranes (reinforcement and unreinforcement) and sand/textured geomembrane. The results show that the peak shear strength of the reinforced HDPE geomembrane is larger than that of smooth HDPE geomembrane under the same normal stress, and reinforced HDPE geomembranes have advantages over textured geomembranes on rupture strength.
direct shear test geomembrane shear stress reinforcement
Jun-Li GAO Meng-Xi ZHANG Wen-Jie ZHANG
Department of Civil Engineering, Shanghai 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
822-827
2009-09-08（万方平台首次上网日期，不代表论文的发表时间）