A LARGE-SCALE RAMP MODEL TEST ON COMPOSITE LINER SYSTEMS

摘要：

Composite liner systems comprising geosynthetics are widely used in landfills. In this paper, a large-scale ramp model test was carried out to simulate the sliding along the interface of GT/GM liner. The simulation test was performed by using a purposely-design set-up in the Zhejiang University large model box for foundation and slope engineering. The composite liner laid on a sloping foundation was loaded to a vertical stress level of 75 kPa, and a sliding along the GT/GM interface was successfully simulated by removing the lateral support. The softening behavior of the GT/GM interface during the sliding process was revealed. The experimental results of GT/GM liner system show that when the shear stress induced by the vertical loading exceeds the peak shear strength of the GT/GM interface, the GT/GM interface quickly fell into a residual shearing condition, and the tension stress in GT would increase sharply.

关键词： composite liner systems a large-scale ramp model test GT GM

作者: Wei-An LIN Tony L.T.ZHAN Yun-Min CHEN Sheng HE

作者单位: Department of Civil Engineering, Zhejiang University, China Suzhou Bureau of Urban Environment and Sanitary, China

会议类型: 国际会议

会议名称: International Symposium on Geoenvironmental Engineering(国际环境岩土工程研讨会

会议地点: 杭州

会议语种:英文

页码: 846-849

在线出版日期: 2009-09-08（万方平台首次上网日期，不代表论文的发表时间）