填埋场不同深度垃圾土反复直剪实验研究  

Experimental study on repeated direct shear of municipal solid waste from different depth of landfill

作　　者：高文银[1,2] 涂帆[1] 肖朝郓[1] 柯秋菊 谢仲明[1] 

机构地区：[1]华侨大学土木工程学院,泉州362021 [2]石家庄铁源工程咨询有限公司成都分公司,成都610101

出　　处：《环境工程学报》2010年第5期1171-1176,共6页Chinese Journal of Environmental Engineering

基　　金：福建省自然科学基金资助项目(E0710019);建设部研究开发项目(06-k1-07)

摘　　要：根据垃圾土颗粒大、纤维质多等性质,自行研发了适合垃圾土的反复直剪仪,进行了垃圾土的反复剪切实验。通过对比3组不同深度垃圾土样的反复剪切实验数据,总结出垃圾土的反复剪切性质,得出反复剪切的破环强度、峰值强度和残余强度,并根据破环强度值得出垃圾土的c、φ参数。对比国外填埋场失稳反演得出的垃圾土强度,得出以剪切应变ε=10%作为垃圾土强度的取值。According to the characters of municipal solid waste（MSW）,such as large particles and much fiber,experimental equipment for the repeated shear of MSW was designed and made by ourselves.Through the comparison of the repeated shear experimental data of three soil samples from different depths of a landfill,the shear properties of MSW,the damage strength,peak strength and residual strength of the repeated shear were obtained.The strength parameters（c,φ）of the soil were acquired.Comparing the results from domestic and foreign scholars,the stress strength（ε=10%）similiar to the value abtained from the landfill failure.

关 键 词：垃圾土 剪切强度 峰值强度 残余强度 

分 类 号：X705[环境科学与工程—环境工程]