摘要
针对山西寿阳段王煤矿090502仰采工作面仰采角度大,煤壁极易片帮的问题,对煤壁片帮机理及影响因素进行分析,通过对煤壁进行预注浆,改善支架应力状态,加快工作面进度等措施,有效控制了煤壁片帮现象,保证了工作面的安全生产。
Aiming at the problems of large angle and coal wall rib fall at 090502 overhand working face,the author analyzes the rib fall mechanism and influential factors and presents the measures of improving support stress state and fastening the working progress by pre-grouting reinforcement,which can effectively control the rib fall and guarantee the safety production.
出处
《江西煤炭科技》
2017年第4期17-19,共3页
Jiangxi Coal Science & Technology
关键词
仰采工作面
片帮
影响因素
控制措施
预注浆加固
overhand working face
rib fall
influential factor
control measures
pre-grouting reinforcement
