基于Visual Modflow方法的某矿井涌水量预测研究

Syudy on the prediction of Water Inflow in a Mine Based on Visual Modflow Method

矿井涌水量一直是制约矿井安全生产的重要因素,目前矿井涌水量的预测方法多种多样。本文在分析某铁矿区地质构造、岩性特征以及水文地质条件的基础上,利用可视化软件Visual Modflow对研究区地下水进行数值模拟。重点分析了模型边界条件、含水层水文地质参数。通过多次调整模型参数,实现模拟计算结果与观测值较好地拟合,模拟结果表明:5 a和10 a后随着随开采面积的增大,模型水位降落漏斗明显扩大,矿井涌水量也明显增大,当地天然渗流场被破坏,影响矿区周围居民生活用水,应采取必要的防渗措施,减小周边水位的下降幅度,为矿区地质环境保护提供科学依据和理论指导。

Mine water inflow has always been an important factor that restricts mine safety production.At present,prediction methods of mine water inflow are various.Based on the analysis of geological structure,lithology and hydrogeological conditions in a certain iron ore district,this paper uses Visual Modflow visualization software to simulate the groundwater in the study area.Focusing on the model boundary conditions,aquifer hydrogeological parameters.By adjusting the model parameters several times,the simulation results are well fitted with the observed values.The simulation results show that with the increase of mining area after 5 years and 10 years,the model water level dropping funnel obviously expands and the mine water inflow is also The local natural seepage field is destroyed,affecting the domestic water consumption of residents around the mining area,should take the necessary anti-seepage measures to reduce the decline of the surrounding water level,to provide scientific basis and theoretical guidance for geological environment protection in the mining area.