摘要
桥梁水中桩基在江、河、海水的日益冲刷下出现混凝土剥落、钢筋外露锈蚀,导致桩基缩径,极大地威胁着桥梁结构的安全性,这就需要对桩基进行维修加固。结合《大潮差桥梁桩基钢围堰施工技术研究》(S20130013)和温州市东瓯大桥桩基加固工程实例,介绍单壁钢围堰技术在处理水下桩基础破损露筋等质量问题中的应用,阐述了钢围堰加固桩基施工方案的实施和施工中应注意的几个关键技术。
The spalling concrete,and the exposed and rusted steel bar of bridge pile foundation in water caused by the day-by-day scour of river water and sea water will lead to the hole shrinkage of pile foundation,which greatly threatens the safety of bridge structure.It is required to maintain and reinforce the pile foundation.According to Study on Construction Technology of Steel Cofferdam for Bridge Pile Foundation in Spring Tide Range(S20130013) and the case of Wenzhou City Dongou Bridge Pile Foundation Reinforcement Project,the article introduces the application of single-wall steel cofferdam in the treatment of quality problems of damaged and exposed-bar pile foundation in water,and sets forth several key technologies for attention in the implementation and construction of steel cofferdam reinforcing pile foundation construction scheme.
出处
《城市道桥与防洪》
2017年第10期90-93,共4页
Urban Roads Bridges & Flood Control
基金
温州市科技计划项目(S20130013)
关键词
桥梁
桩基加固
单壁钢围堰
大潮差
bridge
reinforcement of pile foundation
single-wall steel cofferdam
spring tide range
