在海上滩涂区或者浅海区采用钢板桩围堰结构进行深水基础施工,除充分考虑特殊的气候、水文、地质条件外,还需分析海上钢板桩围堰设计及施工特点,利用现有结构的优点,突破现有计算方法和设计理念。文中提及的混合钢板桩围堰就是利用现有U型钢板桩和组合钢板桩各自的优点,通过某种组合形成一种新型的混合钢板桩围堰结构。同时通过改变边界条件,充分利用钢板桩平面内的刚度,即满足设计和施工要求,同时也节约了成本。
Steel plate pile cofferdam is adopted for the deepwater foundation construction in the tidal-flat area or neritic region,except for fully considering special climate,hydrology and geological conditions,design and construction characteristics of steel plate pile cofferdam on the sea are also need to be analyzed,and the existing computing methods and design ideas will be broken through by the use of the advantages of the existing structure. Mixed steel plate pile cofferdam mentioned in this article is a new type of mixed steel plate pile cofferdam structure,which makes use of the respective advantage of the existing U-pattern steel plate piles and combined steel plate piles. Meanwhile,it is satisfied with design and construction requirements,and reducing the cost,through changing the boundary conditions and making full use of the stiffness of steel sheet pile plane.