千米深井强冲击倾向煤层的冲击地压防治技术
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摘要
为防治冲击地压的发生,分析了华丰煤矿四煤层发生冲击地压的内因、外因,采用深孔爆破、煤层钻孔等措施对煤层进行卸压,结合1410工作面的情况介绍了卸压参数及施工工艺,并根据微震监测结果对卸压效果进行了评价。微震监测结果及实际应用效果表明,采用深孔爆破、煤层钻孔等综合卸压技术能够从根本上改变煤岩体的应力分布状态,使应力峰值远离煤壁,减少能量的积聚,有效防治冲击地压的发生。
In order to prevent and control the seam bumping occurred,the paper analyzed the inner cause and outer cause of the seam bumping from No.4 seam in Huafeng Mine.The deep borehole blasting,seam borehole and other measures were applied to the seam for the pressure releasing.In combination with the conditions of No.1410 coal mining face,the paper introduced the pressure releasing parameters and the operation technique.The pressure releasing effect was evaluated based on the micro seismic monitoring and measuring results.The micro seismic monitoring and measuring results and the actual application effect showed that the deep borehole blasting,seam borehole and other comprehensive pressure releasing technology could be fundamentally to exchange the stress distribution status of the coal and rock mass,to keep the stress peak far from the coal wall,to reduce the energy accumulation and to effectively prevent and control the seam bumping occurred.
In order to prevent and control the seam bumping occurred,the paper analyzed the inner cause and outer cause of the seam bumping from No.4 seam in Huafeng Mine.The deep borehole blasting,seam borehole and other measures were applied to the seam for the pressure releasing.In combination with the conditions of No.1410 coal mining face,the paper introduced the pressure releasing parameters and the operation technique.The pressure releasing effect was evaluated based on the micro seismic monitoring and measuring results.The micro seismic monitoring and measuring results and the actual application effect showed that the deep borehole blasting,seam borehole and other comprehensive pressure releasing technology could be fundamentally to exchange the stress distribution status of the coal and rock mass,to keep the stress peak far from the coal wall,to reduce the energy accumulation and to effectively prevent and control the seam bumping occurred.
引文
[1]Lippmann H.关于煤矿中“突出”的理论[J].力学进展,1990,24(4):452-466.
[2]姜福兴,王同旭,潘立友,等.矿山压力与岩层控制[M].北京:煤炭工业出版社,2004.
[3]齐庆新,史元伟,刘天泉.冲击地压粘滑失稳理论的研究[J].煤炭学报,1997,22(2):144-148.
[4]潘一山,李忠华,章梦涛.我国冲击地压分布、类型、机理及防治研究[J].岩石力学与工程学报,2003,22(11):1844-1851.
[5]蒋金泉,毛仲玉,潘立友.长壁工作面冲击地压发生区域性与时间性[J].岩石力学与工程学报,1998(S):922-927.
[6]姜福兴,杨淑华,XUN Luo.微地震监测揭示的采场围岩空间破裂形态[J].煤炭学报,2003,28(4):356-360.
[7]谭云亮,李芳成,周辉,等.冲击地压声发射前兆模式初步研究[J].岩石力学与工程学报,2000,19(4):425-428.
[8]窦林名,何学秋.冲击矿压防治理论与技术[M].徐州:中国矿业大学出版社,2001.
[2]姜福兴,王同旭,潘立友,等.矿山压力与岩层控制[M].北京:煤炭工业出版社,2004.
[3]齐庆新,史元伟,刘天泉.冲击地压粘滑失稳理论的研究[J].煤炭学报,1997,22(2):144-148.
[4]潘一山,李忠华,章梦涛.我国冲击地压分布、类型、机理及防治研究[J].岩石力学与工程学报,2003,22(11):1844-1851.
[5]蒋金泉,毛仲玉,潘立友.长壁工作面冲击地压发生区域性与时间性[J].岩石力学与工程学报,1998(S):922-927.
[6]姜福兴,杨淑华,XUN Luo.微地震监测揭示的采场围岩空间破裂形态[J].煤炭学报,2003,28(4):356-360.
[7]谭云亮,李芳成,周辉,等.冲击地压声发射前兆模式初步研究[J].岩石力学与工程学报,2000,19(4):425-428.
[8]窦林名,何学秋.冲击矿压防治理论与技术[M].徐州:中国矿业大学出版社,2001.
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