中文摘要：

为研究高矿化度潜水地区典型包气带细粒土质毛细水上升规律,在室内开展不同矿化度潜水条件下（淡水、30g/L、100g/L和250g/L）,不同粒径分布粉质粘土毛细水上升监测试验。结果表明：同一粒径分布,高潜水矿化度对重力势的改变是控制毛细水上升的主要因素,但同时也改变了土壤结构;随砂粒含量增加,相同时段淡水毛细水上升高度趋于最大化;各处理毛细水上升历时曲线均可用幂函数描述,一阶求导显示毛细水上升速度随时长增加迅速衰减;不同矿化度处理各粒径组毛细水上升曲线之间的差异性,也进一步验证高矿化度潜水与淡水条件下的毛细水上升规律显著不同。

英文摘要：

In order to find out the law of capillary rise for typical vadose zone with fine soils in areas where the phreatic water has the high total dissolved solids （TDS）, experiments on capillary rise of silty clay soils with three particle size distributions were carried out, under four TDS conditions of phreatic water, fresh water, 30g/ L, 100g/L and 250g/L. For the same soil of particle size distribution, the results showed that although effect of high TDS on gravitational potential was the main factor of controlling capillary rise, soil structure was changed at the same time. With sand content increasing, the height of capillary rise tended to be maximum under the same time interval. Capillary rise of each treatment could be expressed by power function, and the derivative indicated a rapid decrease of velocity on capillary rise with the time duration increasing. The significant differences of capillary rise law for fresh and high TDS phreatic water were further validated by capillary rise discrepancies of these treatments with different TDS and particle size distributions.