根据重庆主城区龙家湾隧道病害的现场检测数据,选取其病害严重区段制订加固整治方案,并针对其二衬结构严重大面积脱空欠厚区段选取典型断面建立了带病害的隧道衬砌结构计算模型,计算分析了该隧道加固前和加固后的断面衬砌结构承载性能,并对隧道整体结构的安全性做出了评价,对同类工程有一定的参考价值。 According to the on-site detection data of Longjiawan tunnel in the main city of Chongqing, the serious section of the disease was selected to make the reinforcement and remediation plan. The tunnel lining with disease was selected for the typical section with serious large-area under- Structural calculation model, the bearing capacity of the section lining structure before and after the reinforcement of the tunnel is calculated and analyzed, and the safety of the overall structure of the tunnel is evaluated, which has certain reference value for similar projects.