摘要
弱透水层对地下水的运移过程具有不同于一般含水层的水力影响,开展弱透水层中的渗透试验是模拟该影响的直接手段。本文跟踪了国内外化学渗透的研究进展,当前室内模拟试验仍然是该领域的主要研究方法,对不同溶液的渗透试验发现弱透水层有半透膜的作用,可以过滤部分盐分。已经开展的原位试验主要针对泥岩、页岩的渗透特性,对黏性土的原位渗透研究较少。国外已经开展了化学渗透的数值模拟工作,建立了联合水力驱动和化学驱动的模型,进行了部分参数的模拟分析。未来,高精度原位化学渗透和反渗透试验研究将成为该领域的一个主要研究方向。
Hydraulic impact for migration process of groundwater imposed by aquitard is different from the general aquifer. In this paper, the research advances in chemical osmosis of aquitard was tracked. It was found that indoor test is still the main method for researching in this field,the permeability test of different solution confirmed that aquitard with semi permeable membrane function, and it can filter out some salt. In-situ tests have been carried out mainly in mudstone, shale＇s permeability, less on the permeability of clay. Foreign scholars have carried out numerical simulations study for chemical penetration, using of a joint hydraulic driver and chemically driver model, to analyze some indicators characteristics. In future, in-situ chemical osmosis and reverse osmosis test in high precision will become a main research direction in this field.
出处
《水文》
CSCD
北大核心
2014年第6期45-48,8,共5页
Journal of China Hydrology
基金
国家973计划项目(2010CB428800)华北平原地下水演变机制与调控
关键词
化学渗透
反渗透
弱含水层
粘性土
水资源
chemical osmosis
reverse osmosis
aquitard
clay
water resources
