深水低桩承台双壁钢围堰施工技术

Construction Technology of Double-wall Steel Cofferdam for Deep-water Low-pile Platform

文章结合八步至昭平二级公路昭平县绕城公路马滩大桥工程实例,介绍了深水低桩承台双壁钢围堰的制作、下沉、封底施工工艺,总结了在深水条件下采取先桩后围堰法进行双壁钢围堰施工的技术要点,对于采用双壁钢围堰施工深水低桩承台基础的类似工程具有一定的借鉴意义。

Combined with Matan Bridge engineering practice of Zhaoping County Ring Highway in Ma- bu-Zhaoping Secondary Highway, this article introduced the production, sinking and bottom sealing construction technology of double-wall steel cofferdam of deep-water low-pile bearing platform, and summarized the technical key-points of double-wall steel cofferdam construction under deep water sit- uation by the method of pile first then cofferdam,which has some reference significance for the similar double-wall steel cofferdam construction for deep-water low-pile platform foundation.