清远北江大桥沉井施工技术  

Open caisson construction technology for Beijiang Bridge in Qingyuan

作　　者：韦登超[1] 吴智慧[1] 

机构地区：[1]广东省长大公路工程有限公司,广东广州510075

出　　处：《宁夏工程技术》2006年第3期304-306,309,共4页Ningxia Engineering Technology

摘　　要：根据下沉受力原理,分析了沉井结构,介绍了沉井施工过程中的下沉、纠偏、测量控制以及特殊情况处理的技术措施,如沉井制作中的填沙内模,模板支设和钢筋绑扎,混凝土浇注;沉井下沉控制中的刃脚内模沙土,抽沙泵抽沙下沉,高压水枪破压、空压机吹压下沉等.Through analyzing the structure of open caisson, and according to sinking stress principle, the paper introduced in the open caisson construction process sinking, correcting error, survey control as well as peculiar circumstance processing technical measure, such as in open caisson construction the inner-mold for sanding, framework supporting and steel binding, and concrete casting; in open caisson sinking-control the sand in edge foot inner-mold, sand-pumping sinking, and pressure hydraulic monitor breaking and pressure-blowing sinking by air pressure blower etc.

关 键 词：沉井 刃脚 下沉 

分 类 号：U443.13[建筑科学—桥梁与隧道工程]