复采煤巷掘进工作面注浆固化顶板技术应用

Application of Grouting Solidification Roof Technology in Multiple Mining Coal Roadway Heading Face

针对山东省兖州市大统矿业有限公司杨庄煤矿九采区复采掘进工作面F9305运输顺槽煤体破碎、漏顶的现状,通过超前注LFM轻型充填材料或水泥浆固化顶板,解决了工作面顶板破碎的难题,有效地保证了掘进工作面顶板安全,确保了安全掘进。

In view of the present situation of coal body breaking and roof leakage in the reming driving working face F9305 transportation trough of the No.9 mining area in Yangzhuang Coal Mine,Yanzhou Datong Mining Industry,Shandong Province,through advanced injection of LFM light filling material or cement slurry to solidify the roof,the difficult problem of roof breaking of the working face is solved,and the roof safety of the heading face is effectively ensured.