煤炭科技2025，Vol.46Issue(6)：218-223,6.DOI:10.19896/j.cnki.mtkj.2025.06.039
近距离煤层群切顶卸压护巷技术研究
Research on roof cutting and pressure relief roadway protection technology for close range coal seam group
刘金虎 1王冠赵1
作者信息
- 1. 徐州矿务集团有限公司,江苏 徐州 221000
- 折叠
摘要
Abstract
Addressing the severe deformation and maintenance challenges of roadways caused by repeated mining and intense dynamic pressure under the influence of hard roofs in close range coal seam group,a study on roof cutting and pressure relief technology was con-ducted based on the closely spaced coal seams of a certain mine.Through UDEC numerical simulation,the parameters of roof cutting height and angle were optimized,and the effects of roof cutting and pressure relief were comparatively analyzed.The research results in-dicate that a roof cutting angle of 15°and a roof cutting height of 19 m can significantly enhance the stability of surrounding rock in roadway.A reasonable roof cutting and pressure relief scheme was formulated,and the on-site application effect was good.The deforma-tion of roadway roof and floor,both sides,and coal pillar side was significantly reduced,and the stability of surrounding rock of roadway was effectively controlled.关键词
切顶卸压/近距离煤层群/数值模拟/切顶角度/切顶高度Key words
roof cutting and pressure relief/close range coal seam group/numerical simulation/roof cutting angle/roof cutting height分类
矿业与冶金引用本文复制引用
刘金虎,王冠赵..近距离煤层群切顶卸压护巷技术研究[J].煤炭科技,2025,46(6):218-223,6.
