建下多煤层复采超高水材料充填开采技术应用

Under Building Multiple Coal Seam Second Mining High Water Material Filling Mining Technology Application

随着矿井开采,众多衰老报废矿井,但由于过去开采工艺落后,采出率低,造成煤炭资源的浪费,尤其是厚煤层高落法矿井,采出率更低,又处于建筑压煤。针对这一情况,推广和应用"建下"多煤层复采超高水材料充填,对资源枯竭矿井以及开采工艺采煤方法落后、矿井采出率低的类似矿井具有较好的借鉴示范作用。

With the mine exploitation,causing many aging wasted pit,due to the mining process,low production rate,caused the waste of coal resources,especially the thick coal seam mine high fall method,extraction rate was lower,with coal under construction.Aimed at this situation,promotion and application of 'building down' ultra-high water filling materials was made,which had good exemplary role and reference for many coal seam mining,resources exhausted mines,miningt echnology back wardness and low production rate mines.