地基土液化机理的研究  

Study on the Mechanism of Liquefaction of Foundation Soil

作　　者：牛琪瑛[1] 张素姣[1] 

机构地区：[1]太原理工大学建筑与环境工程学院

出　　处：《太原理工大学学报》2002年第3期246-248,256,共4页Journal of Taiyuan University of Technology

基　　金：山西省自然科学基金资助项目 (2 0 0 0 10 48)

摘　　要：通过室内动三轴试验和扫描电镜试验对不同级配、不同黏土矿物成分、不同黏粒质量分数、不同干重度的重塑土进行了系统的试验研究与微观分析 ,得出不论所含何种黏土矿物、也不论干重度及粗颗粒级配如何 ,黏粒质量分数为 9%左右抗液化强度最低的原因。In this paper, it were systematically studied by series of tests that the liquefaction mechanism of the remolding silt with different gradations and clay mineral components, variant clay particle contents and dry unit weight. One of the laboratory tests was run on remolded silt by using cyclic dynamic triaxial device, the other was carried on Scan Electronic Microscope (SEM). The results drawn why the lowest dynamic shear strength is at 9% of clay particle contents, which is found here and under various regulations of cyclic stress.

关 键 词：地基土 液化 液化机理 黏粒质量分数 干重度 微观分析 试验研究 

分 类 号：TU411[建筑科学—岩土工程] TU44[建筑科学—土工工程]