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矿山的开采大多需要进行疏干排水,而在疏干排水时持续的地下抽水势必导致区内含水层中地下水流场的变化,对周边地下水的开发利用造成影响。为了分析矿山开采中地下水流场的变化特征,本文通过对兴隆县某金、铁矿水文地质条件分析建立研究区地下水系统的数值模拟模型,并通过对已知地下水动态水位的拟合与检验,确定模型的可靠性,然后利用识别后的模型预测兴隆县某金、铁矿运行投产含水层水位的变化特征,探讨矿山开采对地下水系统的影响。
Most mining requires the drainage and drainage, and continuous drainage in the drainage of underground water will inevitably lead to changes in the aquifer groundwater flow field, the impact on the development and utilization of the surrounding groundwater. In order to analyze the variation characteristics of groundwater flow field in mining, this paper establishes the numerical simulation model of groundwater system in Xinglong by analyzing the hydrogeological conditions of some gold and iron ore in Xinglong County. By fitting and testing the known groundwater dynamic water level, Then the reliability of the model is determined. Then, the identified model is used to predict the variation of aquifer water level in a certain gold and iron mine in Xinglong County and the influence of mining on groundwater system.