山东福山铜矿岩溶裂隙水充水矿井涌水量预测

发布时间：2018-04-27 12:53

本文选题：福山铜矿 + 岩溶裂隙水　；参考：《中国岩溶》2017年03期

【摘要】：福山铜矿位于山东省烟台市,围岩主要是大理岩,岩溶裂隙水为矿床直接充水水源。在分析研究区水文地质条件、岩溶发育特征和地下水流态的基础上,建立了地下水三维渗流模型,模型考虑了地下水在三个主渗流方向上的各向异性,将疏干巷道概化为排水沟,针对金属矿床开采水位降深大,边界流量随着降深的增大而增加,采用通用水头边界,随着降深的变化边界流入量依据水位值计算得到。利用群孔抽水试验资料和长期观测资料对模型进行识别和验证,最终对矿井疏干排水量和不同年份的正常涌水量进行预报,模拟结果为-80m、-200m、-300m、-400 m和-450 m水平平水年正常涌水量分别为7 500 m~3/d、14 060 m~3/d、28 070m~3/d、37 200m~3/d和41 600m~3/d。从岩溶发育特征和地下水流动特征看,在这类岩溶地区建立地下水三维渗流模型是可行的。
[Abstract]:Fushan Copper Mine is located in Yantai City, Shandong Province. The surrounding rock is mainly marble, and karst fissure water is the direct water source for the deposit. Based on the analysis of hydrogeological conditions, karst development characteristics and groundwater flow patterns in the study area, a three-dimensional seepage model of groundwater is established, which considers the anisotropy of groundwater in three main seepage directions. The dredging roadway is generalized as drainage ditch. In view of the large depth of mining water level in metal deposit and the increase of boundary discharge with the increase of depth, the general head boundary and the inflow amount of the boundary with decreasing depth are calculated according to the water level value. The model is identified and verified by using the pumping test data and long-term observation data. Finally, the drainage of the mine and the normal discharge in different years are forecasted. The simulation results show that the average annual normal water inflow at -80mU -200mU -400m and -450m level is 7 500 mv / 3 / d ~ (14 060) m/ d ~ (3 / d) ~ (28 070) m / d ~ (3 / d) ~ (37 200m~3/d) and 41 ~ 600 mv / 3 / d ~ (3 / d), respectively. From the characteristics of karst development and groundwater flow, it is feasible to establish a three-dimensional seepage model of groundwater in this kind of karst area.
【作者单位】：河北地质大学水资源与环境学院;河北省水资源可持续利用与开发重点实验室;河北省水资源可持续利用与产业结构优化协同创新中心;
【基金】：河北省自然科学基金项目(D2016403044;E2016403060) 河北省教育厅科研项目(QN2015053)
【分类号】：P641.463

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