矿震冲击气浪与防冲密闭研究  

Research on the Mine Shock Air-bump and Anti-shock Bulkhead

作　　者：李大勇[1] 张开智[1] 俞海玲[2] 谢品洲[1] 

机构地区：[1]山东科技大学矿山灾害预防控制省部共建教育部重点实验室,山东青岛266510 [2]枣庄科技职业学院机械工程系,山东枣庄277500

出　　处：《山东科技大学学报（自然科学版）》2008年第2期14-18,共5页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：矿山灾害预防控制教育部重点实验室开放基金项目(MDPC0603)

摘　　要：运用矿山压力理论和流体力学理论,分析了冲击气浪形成过程的三个阶段,描述了每个阶段气体的始末状态。运用气体动力学理论,视采空区气体流动为无粘性可压缩状态下绝热流动,对采空区大面积顶板瞬时一次冒落进行分析计算,求出了冲击气浪涌入巷道瞬间的速度、冲击气浪沿程损失和冲击所产生的附加压强,最终得出作用在防冲密闭上的压强公式。通过分析作用在密闭上压强的影响因素,进行了防冲密闭设计,并提出了防冲措施。Based on underground pressure theory and hydrodynamic theory, the different three stages in the process of the air-bump formation were analyzed, and the initial and final states of the air at every stage were described. Based on air dynamic theory, viewed the flow of gob air as the heat-insulating flow under the non-viscosity and compressible state, the events of the instantaneous failure of roof with large area in gob were analyzed, finding the instantaneous speed with which the air-bump rushed into the roadways, the loss of air-bump along its advancing route and the additional pressure induced by air-bump. Finally, the formula of pressure acting on anti-shock bulkhead is obtained. Through analyzing the influence factors of pressure acting on anti-shock bulkhead, the anti-shock bulkhead is designed, and the anti-shock measures are proposed.

关 键 词：矿震 冲击气浪 防冲密闭 防冲措施 

分 类 号：TD325[矿业工程—矿井建设]