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根据三门峡段村-雷沟铝土矿区地质构造及水文地质条件,对寒武-奥陶纪灰岩岩溶裂隙含水系统水文地质模型进行概化,建立地下水流数学模型,采用Visual Modflow有限差分方法模拟地下水位和涌水量,结合抽水试验地下水位观测资料对该模型进行校正和参数反演,利用校正后的数学模型和参数,预测井下采矿设计水平地下水疏干的水位和矿区涌水量变化,为铝土矿安全开采及地下水防治提供可靠依据。
According to the geological structure and hydrogeological conditions of the Sanmenxia section-Leigou bauxite mining area, the hydrogeological model of Cambrian-Ordovician limestone karst fissure aquifer is generalized, and the groundwater flow mathematical model is established. By using Visual Modflow finite difference method The simulated groundwater level and water inflow were combined with the groundwater level observation data of pumping test to calibrate the model and parameter inversion. The corrected mathematical model and parameters were used to predict the variation of groundwater level and mine water inflow in underground mining design level. Bauxite safe mining and groundwater prevention provide a reliable basis.