泰州长江公路大桥中塔墩沉井基础施工方案研究  

Research of Construction Scheme for Caisson Foundation of Inter-mediate Tower of Taizhou Changjiang River Highway Bridge

作　　者：黄龙华 周炜 刘涛 

机构地区：[1]中铁大桥局股份有限公司,湖北武汉430050 [2]杭州市萧山区城市河道管理处,浙江杭州311200

出　　处：《桥梁建设》2008年第2期63-66,70,共5页Bridge Construction

摘　　要：泰州长江公路大桥主桥为主跨1 080 m三塔悬索桥。中塔墩位于长江江中,采用巨型沉井基础。结合桥位处水文地质特点,对中塔墩沉井基础的钢沉井下河、浮运、接高、锚定、着床,钢筋混凝土沉井接高、下沉等工序施工方案进行比选研究,为其实施施工方案提供参考。The main bridge of Taizhou Changjiang River Highway Bridge is a three-tower suspension bridge with two main spans each 1 080 m. The intermediate tower of the bridge is located in the river center and the huge caisson is used for the foundation of the tower. With reference to the hydrologic and geologic conditions at the bridge site, this paper makes a comparison and research of the construction schemes for various working procedures, such as the launching, floating, height extending, mooring and landing on riverbed of the steel caisson, the height extending of the reinforced concrete caisson and sinking of the whole caisson, in order to provide reference for the final scheme to be implemented for construction of the caisson foundation.

关 键 词：三塔悬索桥 桥梁基础 沉井 桥梁施工 方案比较 

分 类 号：U445.559[建筑科学—桥梁与隧道工程] U448.25[交通运输工程—道路与铁道工程]