城门山铜矿地下水数学模型和疏干预测

城门山铜矿是一个大型的铜矿，矿体埋藏在江西省九江市的赛湖的湖底，水文地质条件复杂．该矿床从５０年代发现以来直到现在尚未开采，其中一个主要原因就是“湖水能否倒灌，地下水能否疏干？没有查清．本文建立了复杂的水文地质条件下岩溶水流下的数学模型，计算了各种充水来源所占的份额，分析了产生湖底圳陷和湖水倒灌的呵能性及其对露天采矿场疏干的影响．论证了城门山铜矿“水可治，矿可开”．

MATHEMATIC MODEL OF GROUNDWATER AND DRAINAGE PREDICTION FOR CHENGMENSHAN COPPER MINE

Chengmenshan Copper Mine is one of the largest copper mines in China.The orebody is buried under the bottom of Sal Lake in Jiujiang County, Jiangxi Province,The hydrogeoloogical condition is very complicated. The main problem is that" is it possible to cause karst collapse in the bottom of the lake by pumping and to pour lake water into underground as well as to dewater the open mine?" In order to solve the problem, a mathematic model for dewatering karst water in the complicated hydrogeological condition was established. The quantity and percentage of each source of mine drainage were calculated by numerical computation. The possibilities of happening of karst collapses caused by pumping and pouring lake water into mine through collapses were studied. At last it is demonstrated that "groundwater can be harnessed, the orebody can be mined.