山东煤炭科技2025，Vol.43Issue(5)：143-146,155,5.DOI:10.3969/j.issn.1005-2801.2025.05.027
小庄煤矿40207回风顺槽冲击危险性综合评价及防治
Comprehensive Evaluation and Prevention and Control of Impact Dangerousness in the 40207 Working Face of Xiaozhuang Coal Mine
王瑞彬 1朱伟 1房百利1
作者信息
- 1. 陕西彬长小庄矿业有限公司,陕西 咸阳 713500
- 折叠
摘要
Abstract
In response to the problem of monitoring and prevention and control of rock burst in the 40207 return air crossheading of Xiaozhuang Coal Mine,a comprehensive evaluation of impact dangerousness is adopted to assess the impact dangerousness of Xiaozhuang Coal Mine.Pressure relief and danger relieving measures with corresponding rock burst levels are adopted.The 40207 return air crossheading is divided into three areas with strong impact risk and the rest are areas with moderate impact risk.The"regional monitoring+local monitoring"rock burst monitoring method is proposed.The stoping side wall of the 40207 return air crossheading adopts blasting and pressure relief,with a hole depth of 12 m for the blasting and pressure relief hole and a vertical layout of the wall.The elevation angle is 0-5°,and the hole opening height is 1.0-2.0 m from the floor.After taking pressure relief measures,the maximum microseismic value decreases by 87％.After using large-diameter drilling or blasting for pressure relief,the stress value at 9 m decreases by 26％,and the stress value at 15 m decreases by 24％.The pressure relief plays a good effect.关键词
煤巷/冲击地压/防治Key words
coal roadway/rock burst/prevention and control分类
矿业与冶金引用本文复制引用
王瑞彬,朱伟,房百利..小庄煤矿40207回风顺槽冲击危险性综合评价及防治[J].山东煤炭科技,2025,43(5):143-146,155,5.
