水资源保护Issue(3)：88-93,6.DOI:10.3880/j.issn.10046933.2015.03.017
咸水在黏性土中迁移转化的试验研究
Experimental study on migration and transformation in cohesive soil of salt water
摘要
Abstract
we took an indoor one-dimensional soil column seepage experiment based on the soil sample in the shallow layer drilling of Hengshui groundwater science test field, and tried to probe the control mechanism of cohesive soil to saltwater migration and transformation by means of geochemical simulation.The results show that the cohesive soil has some barrier effects on the salt water migration;the blocking effect of soil column No.1 on the Na+is dominated by adsorption, while that of soil column No.2 on the Na+is mutual influenced by adsorption and cation exchange.The salt rejection rates of soil column No.1 and No.2, R1 and R2, are 49.8% and 54.5%respectively.The retardation factors of two soils columns are 1.54 and 3.78 respectively; In the process of salt water migration, the main factors to control water-rock interaction are salt precipitation, the dissolution of gypsum and calcite, and the ion-exchange among Mg2+, Ca2+and Na+.关键词
黏性土/一维土柱渗流试验/地球化学模拟/水岩相互作用Key words
cohesive soil/one-dimensional soil column seepage experiment/geochemical simulation/water-rock interaction分类
天文与地球科学引用本文复制引用
李亚美,成建梅,李敏敏,崔莉红..咸水在黏性土中迁移转化的试验研究[J].水资源保护,2015,(3):88-93,6.基金项目
国家重点基础研究发展计划（973计划） （）
