边界条件对土体强度的影响  

The Influence of Boundary Conditions to the Strength of Soil

作　　者：叶朝汉[1] 袁聚云[2] 

机构地区：[1]上海市岩土工程勘察设计研究院有限公司,上海200002 [2]同济大学地下建筑与工程系,上海200092

出　　处：《土工基础》2009年第2期77-79,共3页Soil Engineering and Foundation

摘　　要：对上海原状淤泥质粉质粘土进行了不同围压下的固结不排水平面应变试验和常规三轴试验;记录了整个试验过程中土体的应力～应变关系、孔隙水压力的变化以及侧向变形的发展情况。得出以下结论:(1)在常规三轴试验条件下土体的强度要小于平面应变试验条件下土体的强度;(2)不同边界条件下土体的强度有一定的关系。In order to research the relationship between soil intensity and boundary conditon, a series of plane strain compression tests and triaxial tests of Shanghai muddy slity clay were carried on. Most of the sample＇s response was recorded during the shearing procedure, such as the stress-strain response, the development of pore water pressure, and the evolution of local lateral deformation. Based on the experimental results analysis, conclusions were gotten： （1） the soil intensity in s triaxial tests was smaller than that in plane strain condition; （2） the soil intensity in different boundary conditions has some relationship.

关 键 词：边界条件 强度 平面应变 三轴试验 

分 类 号：TU455[建筑科学—岩土工程]