摘要
某矿2603工作面出现支架支撑力异常、回采过程中支架异响的情况,现采用数值模拟和现场应力监测分析2603工作面支架异常的原因,并制定了治理措施。结果表明,采用千米定向钻机对断层区域进行注浆作业,注浆凝固后工作面支架压力基本趋于平稳,未出现波动较大的现象。研究结果对其他矿井煤壁失稳控制具有一定指导意义。
The reasons for the abnormal supporting force and the abnormal sound from the support in the 2603 working face of a mine are analyzed by numerical simulation and field stress monitoring,and the treatment measures are formulated.The results show that after grouting solidification for fault area by using a 1000-meter directional drill,the support pressure of the working face basically tends to be stable without large fluctuation.The study results have guiding significance for the control of coal wall instability in other mines.
出处
《中国矿山工程》
2021年第6期69-73,共5页
China Mine Engineering
基金
山西省重点研发计划项目(社会发展)(201903D321080)。
关键词
煤壁失稳
数值模拟
应力监测
注浆加固
效果考察
coal wall instability
numerical simulation
stress monitoring
grouting reinforcement
effect investigation
