Experimental Study on Shear Behavior of Short-fill-age MSW

摘要：

Mechanical behavior of municipal solid waste (MSW) is important to geo-environment engineering,and it is necessary to properly understand it.Laboratory direct shear tests were conducted on MSW with 3 short fill ages,namely 1d,4d and 7d.Three different densities were taken into accounted in each fill age.Experimental data show that MSWs shear failure still satisfies the Mohr-Coulomb criterion.As to bigger density,shear strength of MSW increases within l-7d fill age.When density becomes smaller,its shear strength increases within l-4d fill age but decreases within 4-7d fill age.With fill-age developing,friction angle of MSW increase monotonously,but cohesion force of it first increases and then decreases.Experimented shear stress-displacement curve of MSW can not be well fitted by either hyperbolic model or exponential model.This experimental research is helpful for design and numerical simulation of corresponding MSW landfill.

关键词： municipal solid waste shear strength fill age density

作者: Ma Lisha Wang Huanli Wang Wei Zhang Zhengwen

作者单位: Department of Civil Engineering,Shaoxing University,Shaoxing 312000,China

会议类型: 国际会议

会议名称: 2010 International Conference of Environment Materials and Environment Management(2010年环境材料与环境管理国际学术会议 EMEM 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 479-483

在线出版日期: 2010-07-24（万方平台首次上网日期，不代表论文的发表时间）