采用SOS微震系统对砚北煤矿250204工作面回采至褶曲区域及250203运输巷掘进至褶曲区域的矿震活动进行监测,分析了矿震活动规律和褶曲附近的应力分布情况,以及褶曲对采掘过程的影响,在此基础上提出了切实有效的防冲技术措施。实践表明,该措施能够有效降低在褶曲附近作业时的冲击矿压危险。
The SOS micro-system is used to monitor the mine seismicity in Yanbei Mine, when its 250204 mining face reaches the folded area and the 250203 haulage roadway drives there. The paper analyses the mine seismicity regularity, the stress distribution near the folds and the impact of folds on the excavating process. Based on them, the paper puts forward the practicable and effective anti-shock technology measures, which can effectively reduce the risk of rock burst when working near the folded area.