南通通沪及东方大道连接线大跨度连续箱梁调坡顶升技术

Long-span Continuous Box Girder Adjustable Jacking Technique for Connection Line of Nantong Tonghu Avenue and Dongfang Avenue

南通通沪大道及东方大道连接线为六跨总长180 m的连续箱梁,该工程由于高架桥建设需要,需对该六跨连续箱梁进行调坡顶升,通过对该工程的技术难点进行分析,并对施工的关键技术进行阐述。重点介绍了连续箱梁调坡顶升的技术要点,有关经验可供相关专业人员参考。

The connection line of Nantong Tonghu Avenue and Dongfang Avenue is the total length 180 m of six-span continuous box girder. This project is required to adjust and jack by the six-span continuous box girder because of the viaduct to be constructed. The article analyzes the technical difficulties of this project, sets forth the key technique of construction, and focuses introduction on the gist of the continuous box girder adjustable jacking technique. The relative experience can be referred for the similar projects.