浅埋暗挖隧道富水砂层地层加固技术分析

Analysis on Reinforcement Technology of Shallow-buried Subsurface Excavated Water-rich Sand Stratum

暗挖施工在城市隧道建设中采用较多,实际施工中常遇到富水砂层的工况,砂层容易造成隧道管涌、坍塌等重大危险事故。本文通过对常用的砂层加固技术进行比较,以前进式注浆工艺对浅埋暗挖隧道富水砂层加固进行技术分析,以期为类似工程提供借鉴。

In the construction of urban tunnels in the construction of more use,the actual construction often encountered water-rich sand layer of the working conditions,sand layer is likely to cause tunneling,collapse and other major dangerous accidents.In this paper,through the comparison of the commonly used sand layer reinforcement technology,the advanced grouting technology is used to analyze the water-rich sand layer reinforcement of the shallow-buried tunnel,so as to provide reference for similar projects.