针对煤矿生产中高应力区动压沿空巷道围岩控制难题,提出了高应力区动压沿空巷道新型三维支护技术,经潞安矿业集团王庄煤矿5218回风巷进行的工业试验表明:新型三维锚索支护技术在控制巷道围岩变形方面具有整体性和均匀性,能很好地控制高应力区动压沿空巷道的围岩变形。
To solve the tough problem of the control of surrounding rock of gob-side roadway subjected to dynamic pressure in high in-situ stress in coal mining,a new-style 3D anchor-cable support is put forward.Its support principle is elaborated as well.A real-size experiment is carried out in the air-return roadway #5218 located in Wangzhuang coal mine of Lu'an Mining Group.It shows that the new-style 3D anchor-cable support is fairly effective in controlling the deformation of surrounding rock of gob-side entry subjected to dynamic pressure in high in-situ stress zone.