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地下水数值模拟是矿坑疏干排水设计的基础。该文以江西武山铜矿为研究对象,根据矿区地质构造、地层分布及水文地质条件,对矿区的岩溶-裂隙含水系统进行概化,建立地下水流三维数学模型,结合现场抽水试验资料,采用MODFLOW有限差分法进行地下水模拟,预测矿井在不同设计疏干水平下,地下水流场分布及矿区涌水量大小,为矿山地下水有效防治和安全生产提供依据。
Groundwater numerical simulation is the foundation of mine drainage and drainage design. Based on the geological structure, stratigraphic distribution and hydrogeological conditions in the mining area, the article takes the Wushan copper deposit in Jiangxi Province as the research object. Based on the generalization of the karst-fractured aquifer system in the mining area, a three-dimensional mathematical model of groundwater flow is established. Combined with the field pumping test data, MODFLOW Finite difference method to simulate the groundwater, predict the distribution of groundwater flow field and the amount of water inflow in the mine under different design dredging levels, and provide the basis for the effective prevention and safety production of mine groundwater.