南浦溪特大桥钢管拱混凝土泵送顶升施工关键技术

The Key Technology of Pumping and Jacking of Concrete Tubular Arch of Nanpuxi Bridge

结合浙江文泰高速公路南浦溪特大桥钢管拱混凝土泵送顶升施工实际情况,介绍拱桥钢管混凝土配合比设计、顶升工艺设计、施工情况及紧急情况处理等经验,为同类工程提供借鉴。

Based on the actual construction situation of pumping and jacking of concrete filled steel tube at Nanpuxi Bridge of Wentai expressway in Zhejiang,this paper introduces the experience of mixing ratio design,jacking process design,construction and emergency treatment of concrete filled steel tube for arch bridge,which provides a reference for similar projects.