矿震冲击气浪与防冲密闭研究
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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.
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.
引文
[1]张文江,宋振骐,杨增夫,等.煤矿重大事故控制研究的现状和方向[J].山东科技大学学报:自然科学版,2006,25(1):5-8.ZHANG Wen-jiang,SONG Zhen-qi,YANG Zeng-fu,et al.Present situation and direction of the study on severe disastersin coalmines[J].Journal of Shandong University of Science and Technology:Natural Science,2006,25(1):5-8.
[2]张少泉,关杰.矿山地震研究进展[J].地球物理学进展,1993,8(3):341-345.ZHANG Shao-quan,GUAN Jie.Progress in research on mine earthquakes[J].Geophysical Progress,1993,8(3):341-345.
[3]肖和平.煤矿构造矿震机理[J].湖南地质,1999,18(2):57-59.XIAO He-ping.Mechanism of the tectonic mine earthquake in coal district[J].Hunan Geology,1999,18(2):57-59.
[4]史红,姜福兴.采场上覆岩层结构理论及其新进展[J].山东科技大学学报:自然科学版,2005,24(1):21-25.SHI Hong,JIANG Fu-xing.Structural theories of overlying strata in longwall faces and their new development[J].Journalof Shandong University of Science and Technology:Natural Science,2005,24(1):21-25.
[5]蒋金泉,张开智.综放开采矿震的成因及防治对策[J].岩石力学与工程学报,2006,25(1):3276-3282.JIANG Jin-quan,ZHANG Kai-zhi.Cause and control method of mine earthquake in fully mechanized top coal caving mining[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(1):3276-3282.
[6]赵文.地下巨型采空区顶板岩石的破坏与冒落[J].辽宁工程技术大学学报:自然科学版,2001,20(4):507-509.ZHAO Wen.The rock failure and fall of the large underground mined-out area[J].Journal of Liaoning Technical Universi-ty:Natural Science,2001,20(4):507-509.
[7]萨文科,古林,马雷.井下空气冲击波[M].龙维祺,于亚伦,译.北京:冶金工业出版社,1979:92-112.
[8]李少刚.综放采场覆岩大结构运动规律及失稳冲击灾害研究[D].青岛:山东科技大学,2006:12-14.
[9]魏亚东,闻德荪.工程流体力学[M].北京:中国建筑工业出版社,1989:60-61,336-338.
[10]王晓方.液压与气动技术[M].北京:中国轻工业出版社,2006:16-34.
[11]姜继海,宋锦春,高常识.液压与气压传动[M].北京:高等教育出版社,2003:23-53.
[2]张少泉,关杰.矿山地震研究进展[J].地球物理学进展,1993,8(3):341-345.ZHANG Shao-quan,GUAN Jie.Progress in research on mine earthquakes[J].Geophysical Progress,1993,8(3):341-345.
[3]肖和平.煤矿构造矿震机理[J].湖南地质,1999,18(2):57-59.XIAO He-ping.Mechanism of the tectonic mine earthquake in coal district[J].Hunan Geology,1999,18(2):57-59.
[4]史红,姜福兴.采场上覆岩层结构理论及其新进展[J].山东科技大学学报:自然科学版,2005,24(1):21-25.SHI Hong,JIANG Fu-xing.Structural theories of overlying strata in longwall faces and their new development[J].Journalof Shandong University of Science and Technology:Natural Science,2005,24(1):21-25.
[5]蒋金泉,张开智.综放开采矿震的成因及防治对策[J].岩石力学与工程学报,2006,25(1):3276-3282.JIANG Jin-quan,ZHANG Kai-zhi.Cause and control method of mine earthquake in fully mechanized top coal caving mining[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(1):3276-3282.
[6]赵文.地下巨型采空区顶板岩石的破坏与冒落[J].辽宁工程技术大学学报:自然科学版,2001,20(4):507-509.ZHAO Wen.The rock failure and fall of the large underground mined-out area[J].Journal of Liaoning Technical Universi-ty:Natural Science,2001,20(4):507-509.
[7]萨文科,古林,马雷.井下空气冲击波[M].龙维祺,于亚伦,译.北京:冶金工业出版社,1979:92-112.
[8]李少刚.综放采场覆岩大结构运动规律及失稳冲击灾害研究[D].青岛:山东科技大学,2006:12-14.
[9]魏亚东,闻德荪.工程流体力学[M].北京:中国建筑工业出版社,1989:60-61,336-338.
[10]王晓方.液压与气动技术[M].北京:中国轻工业出版社,2006:16-34.
[11]姜继海,宋锦春,高常识.液压与气压传动[M].北京:高等教育出版社,2003:23-53.
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