煤体水泥注浆在孤岛工作面煤壁加固中的研究与应用

Research and application of coal body cement injection in coal wall reinforcement of island mining face

新屯矿14259轻放工作面是孤岛工作面,受周围采空区的影响,工作面在回采过程中出现煤壁片帮严重、顶板极度破碎、流煤、流砟难以控制等情况,使工作面正常推进遇到了很大困难。针对以上问题,通过不断探索和实践,采用了煤体注水泥浆加固煤壁技术,工作面得以顺利推进,取得了较好的应用效果。研究结果对于类似地质条件下孤岛工作面的煤壁加固具有重要的指导意义,具有较强的推广价值。

Based on serious coal wall spalling, extremely broken roof and difficult controlling flow of coal and ballastoccurred in stoping process of 14259 light sublevel caving face in Xintun Mine, which was an island mining face andaffected by surrounding goaf, technology of coal wall strengthened with cement grouting was applied to promote working facesmoothly and achieve better application results. It made a difference in coal wall reinforcement of island mining face undersimilar geological conditions and had a strong promotional value.