基于Visual Modflow的矿井涌水量数值模拟预测研究

Prediction of Numerical Simulation for Mine Water Inflow Based on Visual Modflow

为了准确预测陕北某矿2煤顶板的矿井涌水量,在综合分析矿井地质条件、水文地质条件的基础上,结合采掘计划,考虑采掘先后顺序对地下水系统的影响,运用Visual Modflow软件建立数值模型,预测在地下水干扰流场下的矿井涌水量。并将模拟预测结果与矿井现有实测涌水量进行对比,结果表明:基于Visual Modflow并考虑采掘顺序的矿井涌水量数值模拟结果比较接近实测涌水量,验证了方法的准确性。

In order to accurately predict the mine water inflow of 2 coal roof in a mine in northern Shaanxi province, Visual Modflow was used to establish the numerical model to predict mine water inflow. On the basis of comprehensive analysis of mine geological conditions and hydrogeological conditions, combined with mining plan, the influence of mining sequence on groundwater system was considered. Then matched the results to the existing mine water inflow. The results show that the numerical simulation results of mine water inflow based on mining sequence are close to the actual water inflow and the accuracy of the method is verified.