基于弹塑性本构模型的非饱和膨胀土变形研究  

Study on deformation of unsaturated expansive soils based on elastoplastic constitutive model

作　　者：崔树琴[1] 戴志成[1] 

机构地区：[1]铜陵学院土木建筑系

出　　处：《山西建筑》2009年第31期1-2,共2页Shanxi Architecture

基　　金：安徽省2008年度高校省级自然科学研究项目(项目编号:KJ2008B24ZC)

摘　　要：研究了初始含水量一定的条件下,有荷膨胀率与竖向压力半对数成线性关系,与干密度、初始含水量成线性关系,推导出了简单的本构模型,指出该模型是利用室内常规试验可以得到的,能反映研究地区岩土体主要性状的应用型本构模型。It the condition of certain initial water content, research that the linear relation between loaded swelling ratio and semi-logarithm of vertical pressure, and dry density, and initial moisture. A simple constitutive model was deduced. It points out the model can be got by laboratory normal experiment and is a applied constitutive model which can reflect main property of soil in research area.

关 键 词：膨胀土 有荷膨胀试验 本构模型 

分 类 号：TU443[建筑科学—岩土工程]