湘江特大桥钢围堰施工技术

Construction Technology of Steel Cofferdam of Xiangjiang Large Bridge

石长铁路湘江大桥桩基施工中,受到河床地质、地貌以及水文约束,同时因施工工期紧迫以及湘江通航等因素的干扰,施工难度较大,技术要求较高。本文从施工工艺的比选与施工工艺方面着手,重点介绍利用浮龙门与浮平台下沉双壁钢围堰施工方法。

Difficuh construction and high technology was applied in the pile foundation construction of Xiangjiang bridge, due to river geomorphology and hydrology geology, constraints, interference construction urgent, Xiangjiang navigation and other factors. Focusing on the use of floating and sinking of floating gantry, this article mainly introduces the platform of double wall steel cofferdam construction method from the construction scheme selection and construction technology aspects.