中关铁矿堵水帷幕内外水位变化规律

中关铁矿位于水文地质条件复杂、透水性强的奥陶系石灰岩中，该矿在井建期间一直受到严重的水害威胁。在详细分析矿区含水层特征、富水性变化规律及地下水运动特征的基础上，对中关铁矿堵水帷幕内外的水位随季节及年份的动态变化规律进行了分析。结果表明：帷幕内外地下水的动态变化规律不仅受区域地下水径流条件和季节更替的影响，还受帷幕本身及帷幕区域内井巷工程施工及疏干排水作用的影响。根据对矿区水文地质条件及帷幕内外水位变化规律的宏观认识，提出了矿井建设过程中的突水防治对策：工作面超前探水、修建蓄水水仓、矿坑内进行超阶段疏干及对地下水水位和矿井涌水量的持续观测等。

Variation Law of Water Level Around the Grouting Curtain in Zhongguan Iron Mine

The Zhongguan iron ore is an Ordovician limestone karst mine which was eroded by water.And it has been threatened by serious flood during mine construction period.On the basis of detailed analysis of the character of the aquifer of the mining area，the law of water content change and the characteristics of groundwater movement，this study has analyzed the Zhongguan iron ore′s law of water level variation around the water blocking curtain and control strategy of water bursting in mine.It turns out that：the dynamic changes of groundwater around the curtain are not only affected by regional groundwater flow conditions and season alternating，but also by the curtain itself and mine tunnel construction inside the curtain region and sewer drainage.According to the macro understanding of mine hydrogeological conditions and law of water level variation around the water inrush，detecting water by pilot hole，construction of water storage sump，super stages drainage in mine and of groundwater level and continuous observation of mine water inflow of outburst mine and other control strategies of water bursting in mine during mine construction period have been put forward in this paper.