我国第一条越江双层隧道——上海复兴东路隧道北线于 2 0 0 3年 8月 1 3日正式贯通。上海复兴东路隧道北线越江段隧道全长 1 1 2 0 m,隧道内径 1 0 .0 4 m,设计为上下两层单向三车道。与常规隧道相比 ,双层隧道对衬砌管片有特殊要求。施工单位在管片制作过程中研制了全新的钢模 The first cross-river tunnel in China, the north line of Fuxing East Road Tunnel in Shanghai, officially went into effect on August 13, 2003. The tunnel of the north section of Shanghai Fuxing East Road Tunnel covers a total length of 1120 m with a tunnel diameter of 1.04 m and is designed as a two-way one-way three-lane lane. Compared with conventional tunnels, double tunnels have special requirements for lining segments. Construction unit in the production process of the tablet has developed a new steel mold