水上大跨度钢箱梁顶推施工技术研究

Research on Incremental Launching Construction Technology for Large-Span Steel Box Girders on Water

介绍了中国澳门大学连接横琴口岸通道桥的钢箱梁结构情况,并根据中国澳门大学连接横琴口岸通道桥的桥位环境和结构设计特点,此项目采用大跨度水上钢箱梁的施工工艺,即步履式多次连续顶推;同时,介绍了钢箱梁顶推施工的主要步骤和顶推施工的主要方法。这种施工工艺先进科学、安全可靠,对跨河流、跨公路、跨铁路等有特殊条件要求的特殊地段施工具有重要研究意义和推广价值。

It briefly introduces the structural situation of the steel box girder of the passage bridge connecting the University of Macao China to Hengqin Port,and according to the environment and structural design characteristics of the passage bridge connecting the University of Macao China to Hengqin Port,it introduces the construction technology of the large-span over-water steel box girder of this project,i.e.:step-by-step multiple consecutive jacking;at the same time,it briefly describes the main steps of the construction of the jacking of the steel box girder and the main methods of the construction of the jacking.The construction process is advanced,scientific,safe and reliable,which is of great research significance and popularization value for the construction of special sections with special condi⁃tions such as river crossing,highway crossing and railroad crossing.