College of Mining Engineering,Liaoning Technical University,Fuxin　 123000,China

系统研究了井田自然地质动力条件和开采工程效应对冲击地压的综合作用以及井下冲击地压监测预测方法。建立了冲击地压地质动力条件评价方法和指标体系;提出了应用锚索监测断层活动预测冲击地压的方法。阐明了自然地质动力条件是冲击地压发生的必要条件,开采工程效应是冲击地压发生的充分条件。矿井发生冲击地压必须具备相应的地质动力条件,开采等工程活动仅是诱发因素。测力锚索的应力变化与断层活动具有较大的相关性,当锚索测力计数值突变时,表明断层已经活动,据此可预测矿井近期将有冲击地压发生。研究成果在老虎台煤矿83003工作面进行了成功应用,提高了矿井安全生产水平。

This paper systematically studies the comprehensive effect of natural geological dynamic conditions and min- ing engineering effect on rock burst and rock burst monitoring forecast method in the mine field. The paper has devel- oped an evaluation method and index system of rock burst geological dynamic conditions and proposed a method of forecasting rock burst by monitoring fault activity in anchor cable. The paper finds that natural geological dynamic con- ditions is a necessary condition for the occurrence of rock burst and mining engineering effect is sufficient condition for the occurrence of rock burst. The mine rock burst must be corresponding to geological dynamic conditions,and mining engineering activities are just inducing factors. There is a correlation between anchor cable stress variation and fault activity. When there is a mutation of the anchor cable dynamometer value,it indicates that the fault has been active, which can forecast the mine rock burst in a few days. Research results have been successfully applied in the 83003 working face of Laohutai Mine in China,which improves the safety production level of the mine.

国家自然科学基金资助项目(51274117)；

Zhang Hongwei,Zhu Feng,Han Jun,et al. Geological dynamic conditions and forecast technology for rock bursts[J]. Journal of China Coal Society,2016,41(3):545-551.