武山铜矿深部矿坑涌水量预测

武山铜矿位于九江——瑞昌褶皱带北部,横立山——黄桥向斜北翼东段,属于长江南岸丘陵～湖泊过渡地带,矿床分为南、北两个矿带,主要矿体埋均藏于当地侵蚀基准面以下,三叠系至石炭系灰岩溶洞裂隙水为矿床直接充水水源,富水性中等～强,断裂构造较发育,部分断裂导水性较好,水文地质条件属于复杂类型。在分析矿区含隔水层、矿区断裂构造及矿区补、排水文地质特征的基础上,进一步总结大气降水与坑道涌水量动态变化规律,分别采用水文地质比拟法与数值模型法进行了涌水量预测,预测结果误差小,能满足预测精度要求,可为矿山排水设施设计及深部防治水工作提供帮助。

Prediction of Water Inflow in Deep Pit of Wushan Copper Mine

Wushan copper mine is located in the north of Jiujiang to Ruichang fold belt, the east segment of the north syncline of Hengli Mountain to Huangqiao, where belongs to the transition zone between hills and lake at the southern bank of the Yangtze River.The ore deposit is divided into two parts: the south ore belt and the north ore belt. The main orebody is hidden under the local base level of erosion. The fissure water of limestone karst cave from Triassic to carboniferous system is the direct filling water source of the deposit, with medium-strong water content. The fault structure is well developed, part of which has good hydraulic conductivity under complex hydrogeological conditions. Based on the analysis of aquifer barrier of mining area, the fault structure and the hydrogeological characteristics of water recharge and discharge in mining area further summarize the dynamic change rules of atmospheric precipitation and water inflow in tunnel. The hydrogeological comparison method and the numerical model method are used to predict the water inflow respectively. The error of the prediction results is small, which can meet the requirements of the prediction accuracy and provide assistance for the design of mine drainage facilities and the work of deep water control.