铁道科学与工程学报2016，Vol.13Issue(4)：662-668,7.
水泥土抗剪强度参数试验研究
Experimental study on shear strength para meters of cement-soil
摘要
Abstract
In this paper,a series of samples were prepared and subjected to the triaxial compression test in order to research the shear strength parameters of cement -soil when the cement ratio respectively were 10.7%, 13. 7% and 16.7%,and the age respectively were 14 d,28 d and 90 d.The results indicate that curves of stress versus strain of cement stabilized soil performance strain softening model.With the increase of curing age, the corresponding strain of peak intensity decreases and range between 1.56% ~5.31%.Peak intensity increa-ses,but the peak intensity corresponding strain have been continuously reduced.With the increase of cement mixing ratio and ages,cohesive force of cement-soil relatively increased by 9 .0 ~71 .0 times from 11 .2 kPa to 797.2 kPa as well as friction angle increased 1.1 ~1.7 times from 23.8°to 38.4°in comparing with the undis-turbed soil.The rearch result of this paper can provide reference for practical engineering of cement-soil mixing pile's design and construction.关键词
水泥土/三轴压缩试验/应力应变关系/粘聚力/内摩擦角/掺入比/龄期Key words
cement soil/triaxial compression test/relationship between stress and strain/cohesive/friction an-gle/mixing ratio/age分类
建筑与水利引用本文复制引用
阮波,彭学先,邓林飞..水泥土抗剪强度参数试验研究[J].铁道科学与工程学报,2016,13(4):662-668,7.基金项目
国家自然科学基金资助项目(50678175) （50678175）
