随着城市交通基础设施的快速发展,城市隧道的数量也在逐年增加,受地形及线形等诸多条件的限制,在设计修建过程中各种型式的隧道均大量出现,连拱隧道便是其中典型代表之一。本文通过对白石山连拱隧道的支护结构受力分析表明:围岩条件越差,结构尤其是中墙受力越不利,施工中应重点关注。 With the rapid development of urban transport infrastructure, the number of urban tunnels is also increasing year by year. Due to the limitations of topography and linearity, various types of tunnels are emerging during the design and construction. Even the multi-arch tunnels are typical One of the representatives. In this paper, the stress analysis of the supporting structure of the Baishishan multi-arch tunnel shows that the worse the surrounding rock conditions are, the more disadvantageous the structure, especially the midwall, and the more attention should be paid in the construction.