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丘陵地区地下水资源不丰富,依赖于地下水的生态环境也比较脆弱,因此,在开采该地区的矿产资源过程中,采矿排水对周边地下水资源的影响应成为值得注意的问题。本文以安徽省庐江县某一铁矿为例,采用解析法和数值法分别对该矿矿坑涌水量进行预测,并将两种方法的预测结果进行了对比分析。结果表明:在-500m开采条件下,计算结果分别为41991.44m3/d和3150 m3/d,得出数值法更适合水文地质复杂条件下矿坑用水量的预测,且与实测结果较为吻合,具有一定实用性,可为矿山制定防排水方案提供依据。
Due to the low groundwater resources in hilly areas and the fragile ecological environment depending on groundwater, the impact of mining drainage on the surrounding groundwater resources should be an issue that should be paid attention to during the exploitation of mineral resources in the area. In this paper, an iron mine in Lujiang County, Anhui Province is taken as an example. The analytical results and the numerical methods are respectively used to predict the water inflow in the mine pit. The predictions of the two methods are compared and analyzed. The results show that under the condition of -500m mining, the calculated results are 41991.44m3 / d and 3150m3 / d, respectively, and the numerical method is more suitable for predicting the pit water consumption under the condition of complex hydrogeology. The results are in good agreement with the measured results, Practicality, can provide a basis for mine drainage planning.