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近年来,沿海地区高速铁路网进入快速发展时期,桥梁施工技术也在不断创新,特别是为适应沿海地区众多江、河、湖泊及软弱土层的特殊地层构造而采用复杂的桥梁设计,尤其是潮汐环境下的深水基础施工方面,对围堰技术要求也越来越高。以新沂河特大桥跨北六塘河深水基础钢板桩围堰的成功实施为例,针对该桥墩深水基础施工特点,介绍钢板桩围堰在潮汐环境下深水河道中的设计和应用,为今后类似深水基础钢板桩围堰的施工和发展提供一定的参考依据。
In recent years, the high-speed railway network in coastal areas has entered a period of rapid development, and bridge construction technology is constantly innovating. In particular, complicated bridge designs are adopted to meet the special stratigraphic structures of many rivers, rivers, lakes and soft soil in the coastal areas. In particular, In the tidal environment of deep-water infrastructure construction, technical requirements for cofferies are also getting higher and higher. Taking the successful implementation of the deep-water basic steel sheet pile cofferdam crossing the north Liutang River Bridge as an example, this paper introduces the design and application of the steel sheet pile cofferdam in the deepwater channel under the tidal environment according to the construction characteristics of the deep-water foundation of the pier. Similar to the construction of deep foundation steel sheet pile cofferdam and development provide some reference.