开滦矿区深部煤层冲击地压监测与防治体系研究
发布时间:2018-06-20 23:34
本文选题:深部 + 冲击地压 ; 参考:《中国矿业大学(北京)》2015年博士论文
【摘要】:本文基于分析开滦矿区冲击地压事故发生特征,在掌握开滦矿区发生冲击地压显现规律的基础上确定了开滦矿区深部发生冲击地压的主要因素;重点研究了包括埋深和侧压系数等因素对开滦矿区深部复杂地质构造工作面发生冲击地压的影响;总结了开滦矿区在冲击地压防治过程中所积累的一些经验并参考国内外先进的冲击地压防治技术,构建了具有信息互馈和持续优化机制的全矿井-采区-工作面-局部的多级冲击地压监测和防治系统;基于开滦的实际地质构造和实际开采情况,,提出了适用于开滦矿区深部煤层的冲击地压防治技术,包括开采方法的合理选择和开采保护层等区域性技术措施,以及局部卸压措施和强化巷道支护;并针对这些技术措施开展了优化,主要包括了开采方法的优选、卸压巷道布设位置以及动压巷道支护措施的优选,进一步削弱或消除冲击地压发生所需要的动力源及改善局部围岩应力环境。
[Abstract]:Based on the analysis of the characteristics of the impact ground pressure accident in Kailuan mining area, the main factors of the impact ground pressure in the deep part of the Kailuan mining area are determined on the basis of mastering the law of the occurrence of the impact ground pressure in the Kailuan mining area. The influence of the factors such as buried depth and lateral pressure coefficient on the impact ground pressure in the working face of complex geological structure in Kailuan mining area is mainly studied. This paper summarizes some experiences accumulated in the process of prevention and treatment of impact ground pressure in Kailuan mining area, and refers to the advanced technology of impact ground pressure prevention and control at home and abroad. Based on the actual geological structure and actual mining situation of Kailuan, a multi-stage monitoring and prevention system of impact ground pressure in whole mine, mining area, working face and local area with mutual information feed and continuous optimization mechanism is constructed. The paper puts forward the prevention and treatment technology of impact ground pressure suitable for deep coal seam in Kailuan mining area, including reasonable selection of mining methods and regional technical measures such as mining protective layer, local pressure relief measures and strengthened roadway support. In view of these technical measures, the optimization is carried out, which mainly includes the optimal selection of mining methods, the placement of pressure relief roadways and the optimal selection of supporting measures for dynamic pressure roadways. Further weaken or eliminate the power source needed for the occurrence of rock burst and improve the local surrounding rock stress environment.
【学位授予单位】:中国矿业大学(北京)
【学位级别】:博士
【学位授予年份】:2015
【分类号】:TD324
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