南京大胜关长江大桥主桥4号墩双壁钢吊箱围堰整体吊装设计与施工  

Design and Construction of Integral Lifting and Installation of Double-Wall Steel Boxed Cofferdam for Main Pier No.4 of Dashengguan Changjiang River Bridge in Nanjing

作　　者：程晨[1] 

机构地区：[1]中铁大桥局集团第四工程有限公司,江苏南京210031

出　　处：《桥梁建设》2008年第4期20-23,共4页Bridge Construction

摘　　要：南京大胜关长江大桥主桥4号墩基础施工采用先平台后围堰的方法。介绍该墩855t双壁钢吊箱围堰在岸上整体制造、气囊法下水、浮运至墩位、采用大型水上浮吊进行整体吊装的施工技术。The construction of the foundation {or Pier No, 4 of the main bridge of Dashengguan Changjiang River Bridge in Nanjing was implemented by way of installing the working plat-form first and the cofferdam late. This paper presents the construction techniques for the integral fabrication of the 855 t double-wall steel boxed cofferdam on land for the pier foundation, launching of the cofferdam down to river by the air bag method, floating of the cofferdam to pier site and integral lifting and installation of the cofferdam to position by large capacity floating crane.

关 键 词：桥梁基础 吊箱围堰 施工方法 

分 类 号：U445.556[建筑科学—桥梁与隧道工程]