| 冲击地压危险性预评价与实践 |
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| 引用本文： | 潘俊锋,秦子晗,夏永学,王书文.冲击地压危险性预评价与实践[J].煤炭工程,2011,0(10):83-86. |
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| 作者姓名： | 潘俊锋 秦子晗 夏永学 王书文 |
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| 作者单位： | 煤炭科学研究总院开采设计研究分院,北京100013;天地科技股份有限公司开采设计事业部,北京100013 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(2010CB226806) |
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| 摘 要： | 基于采动高集中应力对冲击地压的显著影响作用，采用有限差分数值方法对开采区域分采区、工作面以及巷道，进行了冲击危险区域划分，认为千秋煤矿21141及21161始终在高集中应力带中开采，21141下巷冲击危险程度最大；利用弹性基础梁“见方”理论划分得出，21141工作面回采过程中将经历七个危险时期，其中五次为工作面与邻近已采工作面见方时期；一次为工作面顶板初次来压时期；一次为工作面过F3-9断层时期。第六危险期为特别危险期。在危险区域、危险时期划分基础上，进行了冲击地压监测与防治实践，实践表明，对冲击地压煤层预先进行冲击危险区域、危险时期划分，有效指导了回采期间冲击地压监测与防治工作，使得回采期间冲击地压监测与防治工作效率化、节约化的同时，杜绝了灾害性冲击地压的发生。
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| 关 键 词： | 冲击地压 孤岛开采 冲击危险区域 划分 “见方” 应力集中 |
Pre-Assessment and Practices on Danger of Mine Pressure Bumping |
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| PAN Jun-feng,QIN Zi-han,XIA Yong-xue,WANG Shu-wen.Pre-Assessment and Practices on Danger of Mine Pressure Bumping[J].Coal Engineering,2011,0(10):83-86. |
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| Authors: | PAN Jun-feng QIN Zi-han XIA Yong-xue WANG Shu-wen |
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| Affiliation: | PAN Jun-feng1,2,QIN Zi-han1,XIA Yong-xue1,WANG Shu-wen1,2(1.Mining and Design Branch,China Coal Research Institute,Beijing 100013,China,2.Mining and Design Department,Tiandi Science and Technology Company Ltd.,China) |
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| Abstract: | Base on the mining dynamic high concentrated stress obviously affected to the mine pressure bumping,the finite difference numerical method was applied to divide the mine pressure bumping dangerous area for the mining area,coal mining face and gateway in the mining region.The plastic basic beam square theory was applied to divide and obtain the seven dangerous periods occurred during No.21141 coal mining process and the sixth dangerous period would be special dangerous period.Base on the dividing of the dang... |
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| Keywords: | mine pressure bumping pre-assessment of danger mine pressure bumping dangerous area danger period stress concentration |
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