塑料波纹管留孔真空辅助压浆新技术的应用

The Application of the New Technique of Prestressed Plastic Duct Grouting with the Addition of Vacuum

南京长江二桥预应力索塔施工中 ,预应力孔道灌浆采用真空辅助压浆新技术。本文介绍了新型塑料波纹管的性能 ,真空压浆技术的施工工艺流程 ,真空压浆和普通压浆技术的对比试验结果 ,总结了真空压浆技术的优点。

During the construction of prestressed cable tower of the second bridge on Yangtze River in Nanjing.This paper introduces the property of the plastic tube and technological process of prestressed duct grouting with the addition of vacuum and the result of contrast test between grouting ordinarily and with the addition of vacuum.Point out the advantage of prestressed duct grouting with the addition of vacuum.