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
邓玉平1
作者信息
- 1. 中铁大桥局集团有限公司,湖北 武汉 430050
- 折叠
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.
Abstract
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Key words
Changtai Yangtze River Bridge/steel open caisson/positioning system/anchor pier/positioning scheme/innovative technology引用本文复制引用
出版年
2024
NETL
NSTL
万方数据