城市发展推动了沿江、沿海城市各种形式、不同规模的过江/跨海水下隧道的工程建设。高铁、高速公路建设,助推我国中西部广大腹地长大公路、铁路隧道工程蓬勃兴建。而在修建过江/跨海交通连接线工程时,选择桥梁还是隧道是工程设计者们时常面对的一道选择题。早年,由于我国缺乏水下建隧的实际经验,在桥隧方案比选中,隧道方案多处于下风。 Urban development has promoted the construction of over-river / cross-sea tunnels of various forms and sizes along the coast and coastal cities. The construction of high-speed railways and expressways has boosted the vast roads in the vast hinterland of central and western China and the construction of railway tunnels has flourished. In the construction of cross-sea / cross-sea traffic cable project, the choice of bridges or tunnels is often faced by engineering designers a multiple choice. In the early years, due to the lack of practical experience of underwater tunnel construction in our country, the tunnel scheme was at a disadvantage under the comparison of the bridge and tunnel schemes.