南京建宁西路过江通道北接线主线桥梁工程顺利贯通

Core Points - The completion of the last segment of the cast-in-place box girder marks the successful construction of the main bridge of the Jianing West Road River Crossing Channel [2] - The main bridge spans a total length of 1409 meters and consists of 15 segments, utilizing a combination of cantilever cast-in-place beams, prefabricated box girders, and support cast-in-place beams [2] - The project faced challenges such as tight schedules, heavy construction tasks, and complex environments, which were managed through scientific management and coordinated advancement [2][4] Construction Techniques - Significant technical challenges included the construction of cantilever beams over urban main roads, long-distance prefabricated box girder crossings over electrified railways, and the use of full-support scaffolding for cast-in-place beams in the Nanjing North Station area [4] - The construction plan was continuously optimized, implementing layered and categorized safety technical disclosures, and strict quality control during the process to ensure efficient and high-quality progress [4] - The successful completion of the main bridge construction creates favorable conditions for subsequent works on the bridge deck and auxiliary structures [4]