网纹红土剪切试验研究  

The shear experimental study of reticulated laterite

作　　者：唐喜青[1] 李建中[1] 晏露超[1] 

机构地区：[1]中南大学地学与环境工程学院勘察与基础工程研究所

出　　处：《山西建筑》2009年第22期3-5,共3页Shanxi Architecture

基　　金：湖南省自然科学基金(项目编号:07JJ6087);武汉岩土所国家重点实验室开发课题资助项目(项目编号:Z110702)

摘　　要：为研究洞庭湖地区网纹红土的力学特性,对其进行了直接剪切试验和三轴剪切试验,试验表明,网纹红土的抗剪强度随垂直荷载的增大而增大,存在使其发挥最大抗剪能力的最适宜剪切速率,它随垂直荷载的增大而减慢,围压越大,土体被剪坏的主应力差也越大。In order to study the mechanical characteristics of reticulated laterite in Dongting lake zone, the directed shear test and triaxial shear test were carried. The test indicated that the shear strength of reticulated laterite increased with vertical load enlargement. The most proper shear speed to display maximum shear property was existed, which reduced with vertical load enlargement, the confining pressure larger, the primary stress difference of soil sheared was larger.

关 键 词：网纹红土 剪切 抗剪强度 应力 

分 类 号：TU411[建筑科学—岩土工程]