马堡煤矿迎采巷道围岩综合控制技术

Comprehensive Control Technology for Surrounding Rock of Roadway in Marburg Coal Mine

随着煤矿开采强度的增大,迎采对掘巷道经常出现,此类巷道因受动压影响,围岩控制较困难。文章以马堡煤矿大断面巷道为背景,结合现场观测、理论分析等方法,提出了迎采巷道围岩综合控制技术,即:停掘避开掘采叠加扰动+煤柱帮锚索加强支护+顶板加强支护。研究成果对于改善大断面迎采巷道的围岩控制、缓解煤矿接替紧张、促进煤炭安全高效开采等具有重要的理论价值和现实意义。

With the increase of mining intensity in coal mine,roadway opening to mining often appears.Such roadway is affected by dynamic pressure,and surrounding rock control is difficult.Taking the large section roadway of Marburg coal mine as background,combined with field observation and theoretical analysis,this paper puts forward the comprehensive control technology of surrounding rock of roadway facing mining,that is,stop excavation to avoid superimposed disturbance of excavation and mining+reinforced support of anchor cable of pillar side+reinforced support of roof.The research results have important theoretical value and practical significance for improving the surrounding rock control large section roadway,relieving the tension of coal replacement,and promoting safe and efficient mining.