摘要
以煤峪口矿孤岛工作面2605巷为工程背景,提出了以主动控制为技术核心、充分发挥巷道围岩承载能力为理念,采用锚杆、锚索、金属网和W钢带实现初期主动永久支护,超前工作面范围内采用具有一定初撑力的单体支柱π型顶梁实现临时加强支护,有效控制了孤岛工作面回采巷道大变形问题。
The paper introduces the application of mining effect control technology in 2605 gateway at island working face,in which the initial active permanent support with anchor-cable-wire mesh-W steel band and temporary support reinforcement withπ-typed single prop at advanced working face can effectively control large deformation of gateway at island mining face.
作者
杨大炳
Yang Dabing(Meiyukou Colliery,Datong Coal Mine Group Co.,Ltd.,Datong,Shanxi037041)
出处
《江西煤炭科技》
2021年第3期64-65,68,共3页
Jiangxi Coal Science & Technology
关键词
孤岛工作面
巷道变形
主动支护
采动应力
island working face
roadway deformation
active support
mining-induced stress
