长治盆地岩溶地下水合理开发利用

REASONABLE DEVELOPMENT AND EXPLOITATION ON KARST GROUNDWATER IN CHANGZHI BASIN

用历史的观点,研究了长治盆地奥陶系碳酸盐岩岩溶发育规律,系统地分析了岩溶水赋存及盆地岩溶水系统特征。研究表明,长治盆地属辛安泉岩溶水系统部分,是其西部一个相对独立的岩溶水子系统。该盆地岩溶水受不同类型和规模的蓄水构造控制。单斜蓄水构造及地垒蓄水构造是建设集中水源地的理想地段,各煤矿矿井用水可在背斜蓄水构造中就近解决。根据各蓄水构造的岩溶水文地质特征,合理布置水源地、科学确定取水量是岩溶水合理开发和经济可持续发展的关键。

From historical standpoints, the regulation of karst development in Ordovician Carbonate rocks is studied, the characteristics of karst groundwater storage, the characteristics of the karst groundwater basin are systematically analyzed in the paper. It is proved that the groundwater in Changzhi basin belongs to the karst groundwater system of Xin'an spring and is comparatively an independent subsystem of karst groundwater in the west of it. The karst groundwater in this basin is controlled by the different type and scale of groundwater storing geological structures. The monocline and horst groundwater storing karst groundwater structures are ideal areas for establishing concentrate groundwater supplyingsite. Water supply for each coalmine can be solved by exploiting the groundwater from the nearby anticline structures. The key for developing karst groundwater reasonably and realizing sustainable development for economy is to assign water supplyingsite reasonably and determining the extraction amount of groundwater scientifically according to the karst hydrogeologic characteristics in the groundwater storing structure.