孟村煤矿回采工作面过断层注浆加固施工应用

Application of Grouting Reinforcement Construction Through Fault in Mining Working Face of Mengcun Coal Mine

彬长矿区孟村煤矿401101综放工作面过DF29正断层时,采用注浆加固施工技术,加固工作面断层附近破碎区域的松软煤岩体,提高煤壁的强度和稳定性,保证割煤过程中顶板完好,煤帮无片帮垮落和冒顶。

When the 401101 fully mechanized top coal caving working face of Mengcun Coal Mine in Binchang mining area passes through the DF29 normal fault,the grouting reinforcement construction technology is adopted to strengthen the soft coal rock mass in the broken area near the fault,improve the strength and stability of the coal wall,ensure that the roof is intact in the process of coal cutting,and there is no sheet collapse and roof fall of the coal gang.