岩溶水动态、矿物饱和指数与水源地选择

KARST WATER REGIME,MINERAL SATURATION INDEX AND THE SELECTION OF WATER RESOURCE SITE

在分析区域地下水动态特征的基础上，用化学热力学方法计算出每个钻孔岩溶水的碳酸盐岩矿物饱和指数，结合二者之间的关系，找到了富水分布规律。通过勘探证实，在碳酸盐岩分布区，供水水源地应选择在地下水动态变化不大、滞后期不长、碳酸盐岩矿物馆和指数βｃ＞１～βｄ＜１的灰岩浅埋区。

n the basis of analysing the groundwater regime characteristics in the researched region,the saturation indexof carbonater mineral in each bore-hole's karst water was calculated by using chemical thermodynamics method. After researches on the relation between the saturation indexes of minerals in water and the groundwater regime types,the distribution laws of rich water were discovered. The exploration showed that in karst region,the water resource site should be selectedin shallowly buried limestone zones where the groundwater regime varies less,the retardation time of water is short and thesaturation index of carbonate mineral in water ge is more than one and ac less than one.