南京大胜关长江大桥主桥8号墩钢吊箱围堰封底施工  

Construction of Steel Boxed Cofferdam Bottom Sealing for Pier No.8 of Main Bridge of Dashengguan Changjiang River Bridge in Nanjing

作　　者：董广文 

机构地区：[1]中铁大桥局股份有限公司,湖北武汉430050

出　　处：《桥梁建设》2009年第1期1-3,6,共4页Bridge Construction

摘　　要：南京大胜关长江大桥主桥8号墩基础采用吊箱围堰施工,吊箱围堰平面尺寸大,分仓多,结构复杂,水下混凝土封底难度大。介绍其封底施工技术。The foundation for Pier No. 8 of the main bridge of Dashengguan Changjiang River Bridge in Nanjing was constructed by means of the steel boxed cofferdam. The plan dimensions of the cofferdam were great, the compartments thereof were many, the cofferdam was structurally complicated and the bottom tremie concrete sealing for the cofferdam was therefore difficult. In this paper, the construction techniques for the bottom sealing are dealt with.

关 键 词：吊箱围堰 封底 施工方法 

分 类 号：U445.556[建筑科学—桥梁与隧道工程]