超大型陆上沉井封底施工技术  

Bottom sealing construction technology for extra-large on-land caisson

作　　者：杜洪池 杨宁[2] 

机构地区：[1]中交第二公路工程局第二工程有限公司,西安710119 [2]江苏省长江公路大桥建设指挥部,江苏泰州225321

出　　处：《中国工程科学》2012年第5期19-22,32,共5页Strategic Study of CAE

基　　金：交通行业联合科技攻关项目(2008-353-332-160);江苏省"333高层次人才培养工程"专项资助

摘　　要：泰州大桥北锚碇沉井封底总方量超过30 000 m3,为目前国内立方量最大的水下封底混凝土施工工程,其施工难度大,现场组织要求高。从沉井清基、封底设备布置、封底混凝土施工工艺等方面概略介绍泰州大桥北锚碇沉井封底施工技术。The total quantity of concrete exceeds 30 000 m^3 for the north anchor caisson of Taizhou Bridge, which is the largest quantity underwater concrete for bottom sealing construction till now in China, and its construction is quite difficult with high requirements for site organization. This article presents the bottom sealing construction technology for the caisson of north anchor of Taizhou Bridge mainly in the aspects of base cleaning, bottom sealing equipment arrangement and sealing concrete construction technique.

关 键 词：超大型陆上沉井基础 沉井封底技术 泰州大桥 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]