重塑黄土的微观结构与土水特性关系研究  

Study on relationship between microstructure and soil-water characteristics of remolded clay

作　　者：冯望[1] 李顺群[1,2] 高凌霞[3] 张彦[1,2] 

机构地区：[1]天津城市建设学院土木工程学院,天津300384 [2]天津市软土特性与工程环境重点实验室,天津300384 [3]大连民族学院土木建筑工程学院,辽宁大连116600

出　　处：《广西大学学报（自然科学版）》2013年第1期170-175,共6页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51178290);天津市自然科学基金资助项目(11JCYBJC02900)

摘　　要：为了研究土体微观结构与其土水特性等水力学指标之间的关系,基于常规固结实验、土水特征曲线实验和扫描电镜观察,获得了不同密实度试样的微结构参数、排/吸水差异等宏微观指标。在此基础上,给出了平面孔隙比与土水特性指标之间的关系。研究表明,土样的排水能力和吸水能力获得最大值时,对应的平面孔隙比是不同的。In order to investigate the relationship teristies of remolded clay with different densities, between the microstructure and soil-water charac- the conventional consolidation test, the soil-water characteristic curve test and the scanning electron microscope observation were carried out, and mi- cro and macro parameters such as the microstructure parameters and the drainage and absorption pa- rameters of soil of different densities were determined. And the relationship between plane void ratio and soil-water characteristics was obtained. The results indicated that the plane void ratio of soil was different when its drainage or absorption capacity reached the maximum.

关 键 词：微观结构 非饱和土 固结 土水特征曲线 土水特性 

分 类 号：TU411.92[建筑科学—岩土工程]