煤炭与化工2026，Vol.49Issue(4)：1-7,26,8.DOI:10.19286/j.cnki.cci.2026.04.001
上下煤层协同采动对巷道超前补强技术研究
Research on advanced reinforcement technology for roadways under coordinated mining of upper and lower coal seams
摘要
Abstract
To investigate the influence of dynamic pressure generated by coordinated mining of upper and lower coal seams on roadways of lower working faces and advanced reinforcement technologies,No.2 and No.5 coal seams in Jiaojiazhai Mine were taken as the engineering background.A combination of numerical simulation and theoretical calculation was adopted to analyze the disturbance law of the surrounding rock stress field in the lower coal seam induced by upper coal seam mining.An advanced reinforcement support scheme for roadways in the lower coal seam was proposed and optimized.The results showed that the mining of No.2 coal seam formed stress reduction zones and stress elevation zones in No.5 coal seam.The disturbance impact on No.5 coal seam roadways intensified as the mining distance increased.The original support strength was only 1.13 times the rated value.After the design of three reinforcement schemes,the support strength was improved to 1.2～1.4 times the rated value.Among them,Scheme Ⅲ reduced roof displacement by 16.7％～27.7％,which significantly improved the stability of roadway surrounding rock.The research findings provided theoretical and technical references for roadway support in coordinated coal seam mining under similar geological conditions.关键词
同采工作面/合理错距/支承压力/巷道补强/数值模拟/协同采动Key words
co-mining working face/reasonable offset distance/abutment pressure/roadway reinforcement/numerical simulation/synergistic mining disturbance分类
矿业与冶金引用本文复制引用
陈瑞锋,张永红,韩翔宇,刘增辉,江海龙,李浩南..上下煤层协同采动对巷道超前补强技术研究[J].煤炭与化工,2026,49(4):1-7,26,8.基金项目
国家自然科学基金面上项目(51974007) （51974007）
