土体饱和度确定的两个问题  

Discussion on degree of saturation determination of soils

作　　者：汤连生[1] 张鹏程[2] 刘增贤[1] 王洋[1] 

机构地区：[1]中山大学地球与环境科学学院地球科学系,岩土工程研究所,广州510275 [2]广州市城市规划勘测设计研究院,广州510060

出　　处：《水文地质工程地质》2002年第5期1-3,共3页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金项目 ( 5 97790 19);广东省自然科学基金项目 ( 970 12 7)资助

摘　　要：本文探讨了有关土体饱和度确定的两个问题。由于试验技术手段的限制 ,土体饱和度只能通过其它物理性质指标之间的关系来求取 ,这样换算得到的饱和度往往偏大。并且 ,根据实验分析 ,地下水位以下的粘性土并不都是饱和的。因此 ,在岩土工程中 。Two questions on degree of saturation determination of soils are discussed. Owing to testing conditions, the degree of saturation of soils is evaluated by the relationship between degree of saturation and other indexes of physical properties, and this degree of saturation is on the high side. By analyzing on testing results, when we speak of that soils are under groundwater level, it does not mean the soils are saturated. So, soil mechanics for unsaturated soils is studied urgently in geotechnical engineering.

关 键 词：土体 饱和度 含水量 非饱和土 土力学 粘性土 

分 类 号：TU441.3[建筑科学—岩土工程]