摘要
切顶卸压是有效缓解沿空巷道围岩变形量大的重要手段。为探究切顶卸压沿空巷道围岩变形规律,以鹿台山矿2203轨道顺槽切顶卸压沿空留巷为背景,通过数值模拟与现场实测的方法,探究了切顶卸压沿空留巷巷道的围岩变形规律,分析了切顶卸压沿空留巷围岩变形特征随工作面超前距离的变化规律,得到了工作面对切顶卸压沿空巷道的影响范围约为工作面后方15m之内。
Roof cutting and pressure relief is an important means to effectively alleviate the large deformation of surrounding rock of goaf roadway.In order to explore the surrounding rock deformation law of roof cutting and pressure relief roadway along goaf,the surrounding rock deformation law of roof cutting and pressure relief roadway along goaf was explored by numerical simulation and field measurement with the background of 2203 track gate roof cutting and pressure relief roadway along goaf in Lutaishan Mine,the variation of surrounding rock deformation characteristics with the advance distance of the working face was analyzed,and it was found that the influence range of the working face on the roadway along the goaf is about 15 m behind the working face.
作者
刘明亮
LIU Mingliang(Shuozhou Pinglu District Lanhua Yongsheng Coal Industry Co.,Ltd.of Shanxi,Shuozhou 036800,Shanxi,China)
出处
《能源与节能》
2023年第5期54-57,共4页
Energy and Energy Conservation
关键词
切顶卸压
沿空留巷
围岩变形规律
roof cutting and pressure relief
gob-side entry retaining
deformation law of surrounding rock
