Effect of Freeze-Thaw Cycling Concurrent with MSW Landfill Leachate on the Hydraulic Conductivity of Geosynthetic Clay Liner

摘要：

　　A study was conducted to determine the effect of freeze-thaw cycling concurrent with municipal solid waste(MSW)landfill leachate on the hydraulic conductivity of a geosynthetic clay liner(GCL).The GCL was hydrated with MSW landfill leachate and subsequently subjected to 5,10,15 and 20 freezethaw cycles.After the prescribed numbers of freeze-thaw cycles was met,the hydraulic conductivity of the GCL was tested in a flexible wall permeameter.Hydraulic conductivity of GCL experienced freeze-thaw cycles was slightly higher than those without frozen,with the hydraulic conductivity increased with increasing of number of freeze-thaw cycles.The increase in the hydraulic conductivity of GCL could be a result of the contraction of double-layer,resulting from the increases in the concentrations of cations in the pore water(i.e.,MSW landfill leachate)induced by freeze.

关键词： Geosynthetic clay liners Freeze-thaw MSW landfill leachate Hydraulic conductivity

作者: Bao Wang Bin Chen Dou Tongtong Lou Wang

作者单位: Department of Environmental and Municipal Engineering,Xian University of Architecture and Technolog Department of Civil Engineering,Xian University of Architecture and Technology,Xian 710055,Shaanxi Xian Branch of China Urban Construction Design and Research Institute Co.,Ltd.,Xian 710065,Shaanxi

会议类型: 国际会议

会议名称: The 8th International Congress on Environmental Geotechnics(第八届国际环境土工大会)

会议地点: 杭州

会议语种:英文

页码: 658-663

在线出版日期: 2018-10-28（万方平台首次上网日期，不代表论文的发表时间）