局部变形量测的平面应变仪及其对粘性土的试验研究  

A PLANE STRAIN APPARATUS CAPABLE OF MEASURING LOCAL STRAIN AND ITS APPLICATION TO EXPERIMENTAL STUDY ON CLAY

作　　者：李蓓 赵锡宏[1] 董建国[1] 

机构地区：[1]同济大学地下建筑与工程系,上海市200092

出　　处：《勘察科学技术》2002年第6期21-26,共6页Site Investigation Science and Technology

基　　金：国家自然科学基金资助项目 (No 5 97790 12 )

摘　　要：对上海两层主要粘性土层的原状土样在研制的平面应变仪上进行固结不排水平面应变压缩试验 ,量测土样的局部变形 ,研究局部化应变的发展规律 ,为研究土体剪切带的形成提供有益的试验资料。With new developed plane strain apparatus, a series of consolidated undrained plane strain compression tests were carried out on undisturbed clay samples of two main clayey layers. The local deformation of samples was measured and the regularity of localized strain evolution was studied. The study supplied useful information for the research of shear band formation in soil mass.

关 键 词：局部化变形 平面应变仪 粘性土原状土样 剪切带 

分 类 号：TU411[建筑科学—岩土工程]