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快速诊断和修复震损隧道是打通地震灾区救援与重建交通线的必要环节。该文以汶川地震灾区某一震损隧道为例,阐述了震损隧道的震害诊断方法和内容,总结了汶川强震作用下该隧道表现出的震损破坏形式,论述了该隧道震损病害产生的3方面原因。在此基础上,进一步探讨了在保证交通通畅的条件下恢复震损隧道通行功能的二阶段修复技术,即以防治隧道短期内发生垮塌和破坏为目的的第一阶段应急修复和以保证隧道的长期安全使用为目的的第二阶段病害根治。
Rapid diagnosis and repair of damaged tunnels are necessary links to rescue and rebuild the traffic line in the earthquake stricken areas. Taking a certain earthquake-damaged tunnel in Wenchuan earthquake-stricken area as an example, this paper expounds the method and content of seismic damage diagnosis of the earthquake-damaged tunnel, summarizes the damage damage modes of the tunnel under the action of Wenchuan strong earthquake, discusses the tunnel damage Three reasons for the disease. On this basis, the second-stage repair technology to restore the passage function of earthquake-damaged tunnel under the condition of ensuring smooth traffic flow is further discussed, that is, the first-stage emergency repair and the second-stage repair with the purpose of preventing tunnel collapse and destruction Long-term safe use for the purpose of the second phase of disease cure.