通过康家楼隧道1号斜井反坡排水的施工,1号斜井掌子面为反坡开挖,掌子面局部涌水量大,在放炮、出渣过程中掌子面会出现大量囤积水,反坡排水需采用施工机械排水,设置多级泵站接力排水,介绍了反坡排水在施工过程中的应用和效果。 Through the construction of No. 1 Inclined Shaft Backhole Drainage at Kangjialou Tunnel, the face of No. 1 incline well is of reverse slope excavation, and the local gushing water of the face of the palm is large. During the shooting and drossing process, there will be a large amount of accumulated water In addition, drainage of construction machinery should be adopted for reverse slope drainage, and the relay drainage of multistage pump stations should be set up. The application and effect of reverse slope drainage in the construction process are introduced.