山东煤炭科技2025，Vol.43Issue(1)：32-35,40,5.DOI:10.3969/j.issn.1005-2801.2025.01.007
燕子山煤矿煤岩互层巷道失稳分析及支护加固技术
Instability Analysis and Support Reinforcement Technology of Coal Rock Interbedded Roadway in Yanzishan Coal Mine
解鹏1
作者信息
- 1. 晋能控股煤业集团燕子山矿,山西 大同 037037
- 折叠
摘要
Abstract
Adopting multiple research methods such as theoretical analysis,numerical simulation,on-site practical testing and others to study the instability phenomenon of the coal rock interbedded roadway in Yanzishan Coal Mine.Based on the classical Mohr strength envelope theory,horizontal stress is the main force causing large-scale shear displacement,connectivity cracks,and surrounding rock failure occur in such roadway roofs;Finite element numerical simulation is used to simulate and analyze the deformation and failure process of surrounding rock in coal rock interbedded roadway;A coupled reinforcement support scheme combining prestressed anchor cables and anchor rods is proposed.The application results show that the support scheme significantly enhances the stability of the surrounding rock of the interbedded roadway,with a deformation amount of 5.34 mm in the roadway surrounding rock after 6 months,confirming the effectiveness and reliability of the support scheme.关键词
煤岩互层/巷道/变形/支护Key words
coal rock interbedded/roadway/deformation/support分类
矿业与冶金引用本文复制引用
解鹏..燕子山煤矿煤岩互层巷道失稳分析及支护加固技术[J].山东煤炭科技,2025,43(1):32-35,40,5.
