中文摘要：

用滤纸法和压力板法对Kunigel—V1和高庙子两种膨润土进行试验研究，量测不同孔隙比情况下的土-水特征曲线，研究土-水特征曲线与孔隙比之间的关系以及两种膨润土的土-水特性。试验结果表明：用吸力与含水率的关系表示土-水特征曲线时，在吸力较大的情况下，孔隙比对土-水特征曲线的影响不大；用吸力与饱和度的关系表示土-水特征曲线时，土-水特征曲线随着孔隙比的减小向右上方移动，即在吸力一定的情况下，饱和度随着孔隙比的减小而增加，并且此变化接近于线性变化。另外，孔隙比相同时，Kunigel—V1和高庙了膨润土的土-水特征曲线比较接近，即两种膨润土的持水特性比较相近。

英文摘要：

The filter paper method and the pressure plate method are used for measuring the soil-water characteristic of Kunigel-V1 and Gaomiaozi （GMZ） bentonites. The soil-water characteristic curves （SWCC） obtained from the tests at different void ratios are compared. Relation between SWCC and void ratio and the effects of void ratio on the soil-water characteristic of bentonite are also analyzed. The results show that when the SWCC is expressed by the relation between suction and water content, the effect of void ratio on the SWCC is rather small at the range of higher suction; when the SWCC is expressed by the relation between suction and the saturation degree, the SWCC moves up and right with the decreasing of void ratio. That＇s to say, the saturation degree increases with the decreasing of void ratio at a constant suction; and the change is nearly linear. On the other hand, when the void ratios are the same, the SWCCs of Kunigel-V1 bentonite and GMZ bentonite are almost the same. In other words, the soil-water characteristics of the two bentonites are quite similar.