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作 者:朱伟 王瑞彬 Zhu Wei;Wang Ruibin(Shaanxi Binchang Xiaozhuang Mining Industry Co.,Ltd.,Xianyang 713500,China)
机构地区:[1]陕西彬长小庄矿业有限公司,陕西咸阳713500
出 处:《山东煤炭科技》2025年第4期137-140,146,共5页Shandong Coal Science and Technology
摘 要:针对小庄煤矿40208回风顺槽冲击地压显现的问题,采用理论分析的方式分析冲击地压主控因素,40208回风顺槽评价具有中等冲击危险,划分2处强冲击危险区域、2处中等冲击危险区,对划分的危险区采取大孔径钻孔卸压及爆破卸压。在掘进工作面迎头后方不小于200 m范围开展应力监测,监测结果表明卸压措施起到良好的效果。In view of the problem of rock burst manifestation in the 40208 return air crossheading of Xiaozhuang Coal Mine,method of theoretical analysis is adopted to analyze the main controlling factors of rock burst.The 40208 return air crossheading is evaluated to have moderate rock burst danger,and two strong rock burst danger areas and two moderate rock burst danger areas are divided.Large aperture borehole pressure and blasting pressure relief are adopted in the divided danger areas.Conduct stress monitoring within a range of not less than 200 m behind the head-on of the excavation working face,and the monitoring results show that the pressure relief measures have a good effect.
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