鄂东长江公路大桥主桥施工关键技术  

Key Construction Technologies of Main Bridge in Yangtze River Highway Bridge of Hubei East

作　　者：欧阳效勇[1] 高安荣[2] 张建军[2] 李松[2] 

机构地区：[1]华中科技大学土木工程与力学学院,武汉湖北430074 [2]中交第二公路工程局有限公司,陕西西安710065

出　　处：《施工技术（下半月）》2011年第5期26-31,51,共7页Construction Technology

摘　　要：鄂东长江公路大桥主桥全长1 476m,为九跨连续半飘浮体系混合梁斜拉桥。详细介绍了主桥施工的关键技术,如超长嵌岩桩钻孔、钢管围堰、超高索塔、超宽PK断面混凝土箱梁、钢混结合段、上部结构安装施工等。结果表明,通过一系列有效关键技术的应用在施工质量得到保证的情况下,大大缩短了施工工期,效果良好。Main bridge length of Yangtze River Highway Bridge of Hubei East is 1 476 meters, and it belongs to hybrid girder cable-stayed bridge with nine spans continuous half-floating system. The key construction technologies of main bridge are introduced in detail, such as super long rock-socketed piles, steel pipe cofferdam, super high cable tower, concrete box girder with super wide PK section, steelconcrete composite segment, superstructure installation, etc. The result shows that construction quality can be guaranteed by using key technologies, and the construction period reduced greatly. A good effect is obtained finally.

关 键 词：鄂东长江公路大桥 主桥施工 关键技术 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]