常泰长江大桥主航道桥6#墩沉井定位方案及创新技术研究  

Research on the Open Caisson Positioning Plan and Innovation Technology for 6#Pier of the Main Channel Bridge of Changtai Yangtze River Bridge

作　　者：邓玉平[1] DENG Yuping(China Railway Major Bridge Engineering Group Co.,Ltd.,Wuhan 430050,Hubei,China)

机构地区：[1]中铁大桥局集团有限公司,湖北武汉430050

出　　处：《工程技术研究》2024年第10期197-199,共3页Engineering and Technological Research

摘　　要：常泰长江大桥主航道桥6#墩采用超大台阶型钢沉井基础,为解决超大型钢沉井快速定位、精确着床的难题,该沉井定位系统创新采用“锚墩+大抓力锚”相结合的方式,整个定位系统由锚墩、大抓力锚、大直径钢丝绳、液压连续千斤顶及智能张拉控制系统组成,边锚采用大抓力锚,同时应用了大抓力锚防走锚技术和缆绳快速安装技术。The 6#pier of the main channel bridge of Changtai Yangtze River Bridge adopts the super-large stepped steel open caisson foundation.In order to solve the problem of rapid positioning and precise landing of the super-large steel open caisson,the open caisson positioning system innovatively adopts the combination of"anchor pier+high holding power anchor".The whole positioning system is composed of anchor pier,high holding power anchor,large-diameter steel rope,hydraulic continuous jack and intelligent tensioning control system.The side anchor adopts high holding power anchor,and the high holding power anchor anti-moving technology and cable fast installation technology are applied.

关 键 词：常泰长江大桥 钢沉井 定位系统 锚墩 定位方案 创新技术 

分 类 号：U443.131[建筑科学—桥梁与隧道工程]