哈尔滨工业大学学报（英文版）2008，Vol.15Issue(4)：455-458,4.
Hydraulic conductivity of GCLs in MSW landfills
Hydraulic conductivity of GCLs in MSW landfills
LI Guo-cheng 1YANG Wu-chao 2DAN Tang-hui1
作者信息
- 1. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
- 2. Hubei Key Laboratory of Control Structure, Huazhong University of Science and Technology, Wuhan 430074, China
- 折叠
摘要
Abstract
The state of the art of the study on the hydraulic conductivity of GCLs is presented in terms of the in-fluence of the effective stress, chemical interactions, freeze - thaw cycles and temperature gradients. The chan-ges of void ratio caused by changes of effective stress have a direct linear effect on the hydraulic conductivity, regardless of the cation concentration or the thickness of the adsorbed layer. The hydraulic conductivity is relat-ed to the relative abundance of monovalent and divalent cation(RMD), and RMD has a great effect on the hy-draulic conductivity in weak solution. The long-term susceptibility of GCLs to increased hydraulic conductivity as a response to repeated freeze-thaw cycling is minimal, which has been proved after 150 freeze-thaw cycles. The potential of desiccation cracking increases with the increasing temperature gradient and is related to the ini-tial subsoil water content, the applied overburden stress, etc. 关键词
soil mechanics/municipal solid waste/landfills/geosynthetic clay liners/hydraulic conductivityKey words
soil mechanics/municipal solid waste/landfills/geosynthetic clay liners/hydraulic conductivity分类
建筑与水利引用本文复制引用
LI Guo-cheng,YANG Wu-chao,DAN Tang-hui..Hydraulic conductivity of GCLs in MSW landfills[J].哈尔滨工业大学学报（英文版）,2008,15(4):455-458,4.
