膨胀土工程性质的研究现状与展望  

Studies on existing and prospect of engineering properties of expansive clay

作　　者：贾东亮[1] 丁述理[1] 杜海金[1] 郭忠玉[2] 

机构地区：[1]河北建筑科技学院建筑工程系,河北邯郸056038 [2]邯郸县国土资源局,河北邯郸056003

出　　处：《河北建筑科技学院学报》2003年第1期33-39,共7页Journal of Hebei Institute of Architectural Science & Technology

基　　金：国家自然科学基金 (4 0 0 72 0 18);河北省自然科学基金 (4 993 3 0 );煤炭基金(97地 110 10 )资助项目

摘　　要：对膨胀土的成分与结构、膨胀机理、判别分类、膨胀土改良处理、强度特性和变形特性等的研究历史与现状进行了回顾与分析。对未来膨胀土工程性质研究的主要问题进行了展望 ,认为今后研究的主要方向是膨胀土矿物成分及化学成分与其强度和变形关系的研究 ;裂隙组和软弱结构面的空间分布规律及形成机理研究 ;结构面充填物性质及其力学效应研究 ;膨胀土的微结构及其与强度和变形关系的研究 ;非饱和土理论中关于荷载 -含水量 -吸力关系的研究 ;Through reviewing and analyzing existing studies of expansive clay on ingredient and structure, expansive mechanism, identification and classification, improvement and handling, strength and deformation characteristic,it is believed that the future studies of expansive clay engineering properties are the following: the relationship of its mineralogical component and chemical composition between its strength and deformation, the space distribution law and formation mechanism of crack group and weak structural level, the properties and mechanics effect of structural level, the microstructure, the relationship between microstructure and its strength and deformation, the relationship of load―water content―suction about the unsaturated soil theory, the engineering improvement technology of expansive clay etc.

关 键 词：膨胀土 成分 膨胀机理 结构 强度 变形特性 工程性质 

分 类 号：TU443[建筑科学—岩土工程]