龙泉煤矿大断面留顶煤回风巷道支护技术探讨  

Exploration of Support Technology for Large-scale Coal Roof Ventilation Roadway in Longquan Colliery

作　　者：李俊星[1] Li Junxing(Taiyuan Coal Gasification(Group)Co.,Ltd.,Taiyuan,Shanxi 030032)

机构地区：[1]太原煤炭气化(集团)有限责任公司,山西太原030032

出　　处：《江西煤炭科技》2024年第3期158-161,共4页Jiangxi Coal Science & Technology

摘　　要：针对龙泉煤矿4号煤层4110回风巷大断面巷道布置及巷道支护问题,采用理论分析、数值模拟、井下试验等手段,对比分析大断面煤巷与以往小断面巷道围岩应力分布、破坏规律,探讨大断面留顶煤巷道围岩稳定性、围岩变形与破坏特征,并针对性优化大断面巷道支护方案。通过井下试验,验证优化后的巷道支护方案满足现场安全生产的需要,具有推广价值。In response to the layout and support issues of the 4110 ventilation roadway in the 4th coal seam of Longquan Colliery,the paper uses theoretical analysis,numerical simulation,underground testing and other methods to compare and analyze the stress distribution and failure law of the surrounding rock of the large-scale roadway with previous small ones,discusses the stability,deformation and failure characteristics of the surrounding rock of the large section roof coal roadway,and accordingly optimizes the support scheme for the large-scale roadway,which meets the needs of on-site safety production and has promotional value.

关 键 词：厚煤层 大断面巷道 支护技术 数值模拟 注浆锚索 

分 类 号：TD353[矿业工程—矿井建设]