长江上游卵石覆盖层钢围堰施工技术  

Construction Technology of Steel Cofferdam in Gravel Overburden Layer in the Upper Yangtze River

作　　者：丁正全[1] 

机构地区：[1]中国铁建股份有限公司,北京100855

出　　处：《施工技术》2016年第23期147-150,共4页Construction Technology

摘　　要：白居寺长江大桥工程是重庆市规划的快速五横线的重要控制性节点工程,本桥主塔基础工程施工围堰形式采用与承台形状相同的哑铃形双壁钢围堰。针对现场复杂的地质环境和水文条件,结合白居寺长江大桥基础承台的施工,总结了双壁钢围堰的设计、加工制作、运输、吊装下放、拼装接高、隔舱及封底混凝土等施工技术。Baiju Temple Yangtze River Bridge is a important control node of planning line in Chongqing, dumbbell-shaped double-wall steel cofferdam is used in foundation construction of the main tower of the bridge. According to complex geological environment and hydrologic condition on site, combined with foundation pile cap construction of Baiju Temple Yangtze River Bridge,this paper introduces the design,manufacture, transportation, hoisting, assembly of double-wall steel cofferdam, construction of compartment and bottom concrete and so on.

关 键 词：桥梁工程 斜拉桥 钢围堰 拼装 锁口对接 施工技术 

分 类 号：U445.556[建筑科学—桥梁与隧道工程]