混凝土连续墙在桥梁工程水下基础围堰中的应用  

Concrete Continuous Wall Application in Underwater-foundation Cofferdam of Bridge Engineering

作　　者：沈其明[1] 涂忠仁[2] 

机构地区：[1]重庆交通大学管理学院,重庆400074 [2]重庆交通大学土木建筑学院,重庆400074

出　　处：《施工技术》2010年第12期50-52,78,共4页Construction Technology

摘　　要：桥梁工程水下基础通常采用桩基础配承台的结构形式。要进行水下基础施工,隔水是必要的。在施工中,一般需要采用围堰、沉井、吊箱等施工措施。介绍了混凝土连续墙在桥梁工程水下基础围堰中的应用,分析了在特定情况下采用水下混凝土连续墙进行围堰的优点:节约施工成本、缩短施工工期、保证施工安全;探讨了其适用范围:水流无流速或流速较小,水深在10m以内,河床覆盖层较薄或无覆盖层、岩石裸露的工程现场情况。The structure form of pile and bearing platform is usually adopted in the underwater-foundation of bridge engineering.It is necessary to waterproof to construct the underwater-foundation.For waterproof,the construction measures,such as cofferdam,open caisson,hanging box and so on are used usually.The authors introduce the application of concrete continuous wall in underwater-foundation cofferdam of bridge engineering,meanwhile,the advantages in special conditions are pointed out,which can save construction cost,shorten construction time,guarantee construction safety.Its suitable scope of application in the worksite scene is that the water flow has no velocity or small velocity,the depth of water is within 10m,the cover layer of river is thinner or no overburden and rock bareness.

关 键 词：水下基础 水下混凝土 连续墙 围堰 

分 类 号：U443.1[建筑科学—桥梁与隧道工程]