江西城门山铜矿裂隙喀斯特水的充水条件和疏干预测

THE RECHARGE CONDITION OF MINE WATER AND PREDICTION OF DKAINAGE OF FKACTURE-KARST WATER FOR CHENGMENSHAN COPPER MINE

城门山铜矿矿体存在于裂隙喀斯特（岩溶）化的灰岩中，并且有一部分矿体埋藏在九江县的赛湖底下，矿床的充水条件复杂，一直被认为是“大水矿床”，至今尚未开采。本文分析了该翼天矿充水的各种来说，用数学模型的有限元解计算了各种来源所占的份额。分析了产生湖底塌陷和湖水倒灌的可能性及防治措施。论证了城门山铜矿“水可治、矿可开”。

The orebody of the Chengmenshan Copper Mine is buried under the bottom of Sai Lakein Jiujiang County,Jiangxi Province,Its hydrogeological condition is very complicated.Thedifferent sources of water were analysed for mine drainage,A mathematic model for dewater-ing karst water in the complicated hydrogeological condition was established.The quantityand proportion of each source of mine drainage were calculated by use of numerical method.The possibilities of karst collapse by pumping and lake water rush into mine through collapsewere studied.It is demonstrated finally that the groundwater can be harnessed and the ore-body can be mined.