深部软岩巷道变形破坏与支护技术应用分析  

Analysis of Deep-Soft-Rock Roadway Deformation Failure and Support Technology Application

作　　者：赵瑞雪 Zhao Ruixue(Tongfa Dongzhouyao Coal Industry Co.,Ltd.,Jinneng Holding Group.,Datong,Shanxi 037100)

机构地区：[1]晋能控股集团同发东周窑煤业有限公司,山西大同037100

出　　处：《江西煤炭科技》2025年第1期33-36,共4页Jiangxi Coal Science & Technology

摘　　要：在深部软岩巷道中,能否提供持久有效的支护直接影响煤矿的安全生产和可持续发展。本文以山西东周窑煤矿深部软岩巷道变形破坏及支护技术为实例,在详细的现场调查和前人研究经验的基础上,总结了巷道变形破坏的模式、影响因素、规律和特征,通过数值模拟和现场试验,分析“双层锚喷网喷混凝土+U型钢”组合支护方案;为弥补原支护的不足,拟定“双层长锚喷混凝土-钢管混凝土”组合改进支护方案;应用表明,新型支护能有效控制巷道变形,巷道收敛最大值仅为50 mm左右,且100天后处于稳定阶段,有效保持深部软岩巷道的稳定性。Based on the detailed field investigation and research experience,the paper probes into the deep-soft-rock roadway deformation pattern,influential factors,laws and characteristics in Shanxi Dongzhouyao Colliery,and proposes the improved support scheme with double-layer long anchor spraying concrete and concrete-filled steel tube instead of the original support with double-layer anchor and mesh spraying concrete and U-typed steel through numerical simulation and field testing,whose application shows that the new-type support can control the roadway deformation effectively with the maximum roadway convergence being about 50 mm,and maintain the stability of deep-soft-rock roadway after 100 days.

关 键 词：深部软岩 巷道变形 破坏特征 支护方案 

分 类 号：TD322[矿业工程—矿井建设] TD353