大水矿山倾斜帷幕下采矿方法实践

为了实现大水矿山特殊条件下安全采矿，谷家台铁矿采用近矿体顶板灰岩帷幕注浆堵水技术成功解决了地下水难题，在倾斜帷幕保护下应用预控顶中深孔分段充填采矿法进行矿房回采，对该采矿方法的采场结构参数、回采工艺等做了介绍，生产实践证实该采矿方法较好地满足了水下采矿要求。

Practice Of Mining for Inclined Curtain in Large Waterflow Mines

To realize a safe mining in the specific conditions of large waterflow mine, Gujiatai Iron Mine has successfully solved the underground water problem by adopting a limestone curtain grouting of near-orebody roof, which uses sublevel fill stoping with pre-control roof and medium-long hole under the protection of inclined curtain for room stoping.The stope structure parameters and extraction process of this mining method are presented.The production practice has verified that it can well adapt the mining under water.