由于设计、施工、地质条件和隧道结构本身的原因,公路隧道在建成后需要进行养护管理,产生病害的隧道需要进行加固。公路隧道断面较大,运营繁忙,维修养护较困难,维修费用高,分析研究隧道运营过程产生的病因,科学合理确定养护方案,可减少维护加固难度和费用,延长隧道的使用寿命。本文针对安徽省早期公路隧道的断面特征,依托S215宜徽路维修加固项目,以蟠龙隧道为基本原型进行研究,对今后类似工程提供了指导。 Due to the design, construction, geological conditions and the reason of the tunnel structure itself, the highway tunnel needs to be conserved and managed after it is completed, and the tunnels that cause diseases need to be reinforced. The section of highway tunnel is large, the operation is busy, the maintenance is difficult, the maintenance cost is high, the etiology of tunnel operation process is analyzed and studied, and the maintenance plan is determined scientifically and rationally. The difficulty and cost of maintenance and reinforcement can be reduced and the service life of tunnel can be prolonged. In this paper, according to the characteristics of section of early highway tunnel in Anhui Province and relying on S215 Yicheng Road Maintenance and Reinforcement Project, Beaulieu Tunnel is taken as the basic prototype to provide guidance for similar projects in the future.