预应力管道真空压浆技术在杭州湾大桥的应用  

The application of prestressed pipe vacuum grouting technology in Hangzhouwan bridge

作　　者：邹建风[1] 

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000

出　　处：《混凝土》2008年第7期94-96,102,共4页Concrete

摘　　要：在后张法预应力混凝土结构中,传统的都是采用孔道压浆防止预应力筋锈蚀,这种方法普遍灌浆不密实,给工程留下隐患。杭州湾跨海大桥工程是我国罕见的大型海洋工程,工程的安全使用寿命对工程的长期经济效应极为重要。了解真空压浆技术在该桥的研究、应用及较为完善的工艺。In the structure of post-tensioning prestressed concrete, the anti-rust for prestressed bars is done by means of the traditional drill-compressing grouting,but this method results in less density,which does damage ccured to projects.Hangzhouwa transoceanic extra-long bridge is the unique project in China, its safety is very vital for the long-term economic profits of the this bridge.The application, research and the comparatively perfect technology of prestressed pipe vacuum grouting technology are stated.

关 键 词：真空辅助压浆 饱满度 密实性 后张法预应力混凝土 

分 类 号：TU528.01[建筑科学—建筑技术科学]