摘要
为了定量分析矿区矿井涌水量,通过建立矿区的地下水流三维数值模型,模拟了各开采时段的矿坑涌水量及地下水渗流场。计算表明:矿井总涌水量中位数、第三四分位数、最大值分别为2408 m~3/d、2618 m~3/d、3244 m~3/d,矿区1片区降落漏斗带无敏感点分布,而2片区降落漏斗带存在敏感点(约60 m),尤其下部巷道开采期间,敏感点处地下水位降可达30 m左右,故该区域应加强地下水动态监测,防止环境水文地质问题发生。
In order to quantitatively analyze the mine water inflow, a three-dimensional numerical model of groundwater flow was established to simulate the mine water inflow and seepage field of groundwater in each mining period. The calculation shows that the median of the total mine water inflow is 2408 m3/d, the third quartile is 2618 m3/d, the maximum value is 3244 m3/d. There are no sensitive points in the falling funnel zone of one mining area, while there are sensitive points in the two areas(about 60 m), especially in the mining period of the lower roadway. It can reach about 30 m, so the monitoring of groundwater regime should be strengthened to prevent the occurrence of adverse environmental hydrogeological problems.
引文
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