陕西煤炭2026，Vol.45Issue(9)：83-89,7.DOI:10.20120/j.cnki.issn.1671-749x.2026.0913
不同采高条件下汶上矿区煤矿巷道围岩破坏特征及控制研究
Failure characteristics and control of surrounding rock in coal mine roadways of Wenshang mining area under different mining heights
徐恒 1岳跃宁1
作者信息
- 1. 山东济矿鲁能煤电股份有限公司阳城煤矿,山东 济宁 272502
- 折叠
摘要
Abstract
To obtain the failure characteristics of the surrounding rock of roadway under different mining heights,the transport roadway of the 2301 working face of Yangcheng Coal Mine is taken as the research background.Through on-site investigation,numerical simulation and theoretical calculation,the deformation characteristics of the surrounding rock of roadway under different mining heights were obtained,and the support design scheme was proposed.The results show the vertical stress between coal pillars,the vertical displacement of the overlying rock layer in the goaf of the working face,the area of the plastic failure zone and the failure area of the plastic zone of the surrounding rock of roadway increase with the increase of coal seam mining height,and there is a positive correlation.Based on the theory of the loosening circle of the surrounding rock of roadway,it is concluded that the range of the loosening circle of roadway roof is 3.25 m,and the range of the loosening circles on both sides is 2.5 m.According to the range of the loosening circle of the surrounding rock of roadway,the design of the surrounding rock support of roadway is proposed.Through on-site monitoring,the deformation of the surrounding rock of roadway is relatively small,and the load on anchor rods have not exceeded the ultimate values,further verifying the rationality of the support design.关键词
煤层采高/围岩变形/松动圈/支护设计Key words
coal seam mining height/deformation of surrounding rock/loose ring/support design分类
矿业与冶金引用本文复制引用
徐恒,岳跃宁..不同采高条件下汶上矿区煤矿巷道围岩破坏特征及控制研究[J].陕西煤炭,2026,45(9):83-89,7.
