深水大直径双壁钢围堰封底混凝土厚度设计与施工技术

Large Diameter Double-wall Steel Cofferdam Thickness Design and Construction Technology of Bottom Sealing Concrete

以沪昆客专沅江大桥1#、2#墩深水基础大直径双壁钢围堰施工为例,从围堰封底混凝土厚度计算和封底混凝土施工组织方面介绍大直径双壁钢围堰封底混凝土设计与施工技术,并提出施工中的主要控制技术要点和施工注意事项,为类似工程提供借鉴。

Based on the examples of large diameter double-wall steel cofferdams for deep water foundations of 1#,2# pier of Yuanjiang bridge on Shanghai-Kunming Passenger Dedicated Line,from the cofferdam bottom sealing concrete thickness calculation and bottom sealing concrete construction organization,the paper introduces the design and construction of large diameter double-wall steel cofferdam bottom sealing concrete technology,and puts forward the main technical control points and matters needing attention in the construction,to provide reference for similar projects.