顶板破坏区下巷道综合控制技术研究

Research on Comprehensive Control Technology of Roadway Under Damaged Zone in Roof

文章以回坡底煤矿破碎顶板条件下巷道控制为研究背景,研究了实体煤柱下与破碎采空区下巷道应力变形情况,破碎采空区下顶板完整性差,裂隙较发育,设计采用锚杆索与高泡水泥充填的综合控制技术,现场实践表明,破碎采空区下巷道采用综合控制技术后,顶板完整性增强,巷道围岩变形量可控,完整性提高,满足工作面生产接续需要。

Taking the roadway control under the broken roof of the Huipodi coal mine as the research background,the stress and deformation of the roadway under the solid coal pillar and the broken goaf is studied.The integrity of the lower roof of the broken mined out area is poor and the fracture is more developed.The combined control technology of the bolt cable and the super high water material filling is designed.The field practice shows that the fracture is broken.After the comprehensive control technology is adopted in the roadway under the broken goaf,the integrity of the roof is enhanced,the deformation of the roadway surrounding rock is controllable,the integrity is improved,and the production continuity needs of the working face are met.