滑带土厚度及含水率对其强度参数的影响  

Study on the effect about interlayer thickness and water content to the strength parameters of landslide soil

作　　者：周永昆[1] 魏作安[1,2] 朱彬[1] 张千贵[1] 

机构地区：[1]重庆大学资源及环境科学学院,重庆400044 [2]重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400044

出　　处：《中国地质灾害与防治学报》2010年第2期25-29,共5页The Chinese Journal of Geological Hazard and Control

基　　金：国家自然科学基金资助项目(10772205);重庆市自然科学基金资助项目(CSTC;2007BB0136);中国博士后科学基金资助项目(20070420123);湖南省煤矿安全开采技术重点实验室开放基金(200806)

摘　　要：以红、黄两种不同颜色的滑带土为对象,采用室内试验,先对两种颜色的滑带土的基本物理力学性质进行测定,然后以力学性质较差的红色滑带土作为夹层,运用正交设计,研究夹层土的厚度、含水率等对滑带土强度参数内摩擦角()和粘聚力(c)的影响。实验结果显示,夹层土的含水率对滑带土强度参数内摩擦角()和粘聚力(c)影响最大,夹层土的厚度对强度参数也有一定的影响。In this paper there are two different color（red and yellow）soils from the slide zones as two samplers to be studied through libratory test.Firstly,the basic physical and mechanical properties about two soils were measured. Then the red soil which was poorer in shear strength was selected as an interlayer,through changing thickness of interlayer and its water content,based on orthogonal design,using triaxial shear tests,the shear strength（internal friction angleφand cohesion c）of the landslide mass were studied.The test results show that among factors the water content of interlayer soil is the greatest influence to the shear strength of landslide soil,then interlayer thickness also has a certain effect.

关 键 词：滑带土 滑坡研究 正交试验 剪切强度 方差分析 

分 类 号：TU411.7[建筑科学—岩土工程]