摘要
试样取自南昌非饱和红土层,室内配制了64组非饱和击实试样分别进行直接剪切试验,以研究非饱和红土含水率、干密度对抗剪强度影响规律。试验结果表明,含水率、干密度对抗剪强度及c和φ影响不呈简单的线性关系。相同干密度下,抗剪强度随着含水率的增大而减小;而在相同的含水率下,粘聚力c随着干密度的增大而增大,内摩擦角φ与干密度的关系较复杂。
The 64 unsaturated compacted soil specimens from laterite in Nanchang were experimented according to direct shear test method. The influence of water content and dry density of the unsaturated laterite on shear strength is researched. The results shows that the influential relations of the water content or the dry density on the shear strength and the values of c, φ are not linearity. Under the same dry density, the shear strength decreases with the water content increase. Under the same water content, the value of c increases with the dry density increase and the relation between φ and the dry density is complex.
出处
《建筑科学》
北大核心
2009年第1期70-72,共3页
Building Science
关键词
非饱和红土
抗剪强度
试验
unsaturated laterate
shear strength
experiment
