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1 建设上海长江越江通道的必要性 2 规划选址 3 长江口自然条件 (以上见上期) 4 工程技术方案探讨 4.1 主要技术标准 设计行车速度:考虑到长江越江通道是高速公路的区段,因此设计行车速度拟定为100km/h。 设计荷载:越江通道建成以后,将成为跨(穿)越长江的南北交通走廊,因此设计荷载可以按汽一超20级计算,以挂车-120进行验算。考虑到洋山深水港航运中心的建成及今后崇明的开发和发展,集装箱等重车过江会有一定的数量,因此需要研究增加特-300进行验算的必要性。
1 Necessity of Building Shanghai Yangtze River Crossing 2 Planning Location 3 Natural Conditions of Changjiang Estuary (See above) 4 Discussion on Engineering Technology 4.1 Major Technical Standards Designing Speed: Considering that the Yangtze River Crossing is a section of expressway, the design Driving speed is formulated as 100km / h. Design Load: After the completion of the cross-river channel, it will become the north-south traffic corridor across the Yangtze River. Therefore, the designed load can be calculated according to the steam over one level 20 and checked by the trailer -120. Taking into account the completion of the Yangshan Deepwater Port Shipping Center and the development and development of Chongming in the future, there will be a certain amount of heavy vehicles across the river such as containers. Therefore, it is necessary to study the necessity of adding a special-300 for checking.