School of Resources and Environment Engineering, Shandong University of Science and Technology Jining No.2
Mine, Yanzhou Coal Mining Corporation Limited

为了解决济宁二号煤矿十一采区大采深、多煤层开采相互影响的冲击地压防治问题,通过研究采区的煤岩冲击倾向性、地应力值、开采深度、煤层顶底板性质、地质构造及岩浆岩侵入等冲击地压影响因素,应用综合指数法预测冲击地压危险,并进一步分析了发生冲击的应力条件、能量条件和扰动条件。在此基础上综合预测了十一采区工作面的冲击地压危险,并划分了冲击危险区域。预测结果比较符合现场实际,根据预测结果可成功进行冲击地压防治工作。

In order to solve the prevention and control problems of the deep mining depth and the mutual influences of rock burst to the multi seam mining in No. 11 Mining Block of Jining No.2 Mine, with the study on the coal and rock burst tendency, ground stress value, mining depth, roof and floor strata properties of the seam, g eological structure, magmatite intrusion and other rock burst influence factors of the mining block, the comprehensive index method was applied to predict the danger of rock burst and to further analyze the stress condition, energy condition and turbulence condition of the mine strata bumping occurred. Based on the circumstances, rock burst danger of the coal mining face in No.11 mining block was comprehensively predicted and the bumping danger areas were divided. The predicted results were alm ost met the site reality and with the predicted results, the prevention and control of rock burst were successfully conducted.