基于Visual Modflow的矿山地下水流场分析及预测

Analysis and Prediction of Mine Groundwater Flow Field Based on Visual Modflow

针对中金岭南凡口铅锌矿地下水害防治帷幕注浆工程实际,根据矿区的水文地质调查数据,在Visual Modflow中建立了该矿的地下水数值模拟模型。运用该模型分析该矿山地下水流场,从而揭示了矿区的地下水动态特征。在此基础上,模拟预测帷幕建立后的地下水流场,对比帷幕建立前后矿区地下水位的变化,分析了帷幕对矿区水文地质的影响,并评价帷幕注浆工程堵水的效果。这可为有效防治凡口铅锌矿地下水害、保证井下作业安全提供技术支持。

A curtain grouting project for controlling groundwater disaster has been implemented in Fankou Lead-zinc Mine. Based on the hydrogeologic survey resources, a numerical simulation model was established for Fankou Lead-zinc Mine with 3D groundwater simulation software Visual Modflow. This model was used to analyze the groundwater flow field in the mine so as to get the dynamic characteristics of groundwater. Then, the groundwater flow field after curtain grouting project was also predicted. Based on the comparison of groundwater level before and after curtain grouting project, effect of curtain grouting project on the hydrogeology of mine and management of groundwater disaster has been analyzed and evaluated. The research results can provide technical support for the management of groundwater disaster and ensure production safety underground.