双塔斜拉桥主桥承台钢围堰施工技术

Construction Technology of Steel Cofferdam for Cushion Caps of Main Bridge of Double-Tower Cable-Stayed Bridge

主要研究了某双塔斜拉桥水文地质情况,结合项目建设条件,对双塔斜拉桥主桥承台钢围堰施工过程中的重难点和应对措施进行了分析,并针对钢围堰大体积问题,采用节段划分、拼装封底和混凝土分层浇筑等方式解决钢围堰大体积施工问题。

This paper mainly studies the hydrogeology of a double-tower cable-stayed bridge,and combined with the construction conditions,analyzes the key difficulties and countermeasures in the construction process of steel cofferdam for the cap of the main bridge of the double-tower cable-stayed bridge,and solves the large-scale construction problem of steel cofferdam by segmenting,assembling and sealing the bottom and layering concrete.