矿井快速施工大断面支架回撤通道技术研究

Study on Mine Rapid Construction Large Section Support Withdraw Passageway Technology

以井下重型支架回撤通道施工常面临铺网困难,供回撤时预留的小断面及煤壁滚帮严重,预留的小断面受回采超前压力影响严重等问题为研究对象,在施工前,采用固安特配合柔性网对工作面煤壁、预留的小断面回撤通道及顶板进行加固,减少煤壁滚帮及顶板下沉,确保整体收尾回撤工序安全可靠。

Underground Heavy support withdraw passage way construction facing support net difficulty, the little section and coal wall reserved for withdraw with serious rolling rib spalling, little section reserved influenced by advanced pressure problems, etc were taken as the study object, before the construction, the guante combined with flexible mesh was used to reinforce the working face coal wall, little section reserved withdraw passage way to reduce the coal wall roiling and roof convergence and ensure the whole withdraw working safe.