大口径矸石投料钻孔施工技术

Construction technology of large-caliber gangue feeding borehole

大口径矸石投料孔是指从煤矿矸石仓附近打一口到巷道的大口径钻孔,用于将煤矿生产的煤矸石回填至煤矿开采采空区,不仅解决了煤矸石地面倾倒带来的环境破坏和污染问题,同时对煤矿采空区塌陷治理有一定的积极意义。通过对彬长矿区亭南煤矿大口径矸石投料孔的施工实践,探索出对于此类钻孔的施工工艺技术,其成熟的施工方案对于类似工程具有一定的指导意义。

The large-caliber gangue feeding borehole refers to the large borehole drilled from the vicinity of the gangue bunker to the roadway,which is used to fill the coal gangue produced by coal mining back into the mined-out area of the coal mine.It not only solves the environmental damage and pollution caused by the stacking of the coal gangue,but also has a certain positive significance for the collapse control of coal mine.Through the construction practice of large-caliber gangue feeding borehole in Tingnan coal mine of Binchang mining area,the construction technology for such boreholes was explored,which has a certain guiding significance for the similar projects.