水利学报Issue(12)：1433-1438,6.
黏性土的抗剪强度特性试验研究
Experimental study of shear strength of clay
摘要
Abstract
Systematic research of experiments were conducted on three different plasticity index clay in dif-ferent consolidated condition by a ring shear apparatus. The variation of shear strength in large deformation and the effect factors of residual strength have also been investigated by tests. Test results indicate that the ring shear apparatus used in this study has good stability and high precision for both silty clay and clay, thus can guarantee the accuraty of the test results;stress history has no significant impact on shear strength to silty clay of low plasticity index;residual strength of high plasticity index can’t be influenced by stress history, while peak strength increases with the increase of over-consolidation ratio, and finally close to the peak strength of silty clay; plasticity index is an important factor affecting the residual strength and residual strength is significantly reduced with the increase of the plasticity index;the type of shear settlement curve related to the plasticity index and over-consolidation ratio.关键词
环剪试验/峰值强度/残余强度/应力历史/塑性指数Key words
ring shear test/peak strength/residual strength/stress history/plasticity index分类
建筑与水利引用本文复制引用
许成顺,尹占巧,杜修力,刘海强..黏性土的抗剪强度特性试验研究[J].水利学报,2013,(12):1433-1438,6.基金项目
国家自然科学基金项目（51278015），北京市教委重点项目（KZ201210005010），国家973计划项目课题 （）
