北沿江高铁六合特大桥跨马汊河斜拉桥成功合龙

Core Viewpoint - The successful completion of the main construction of the Liuhe Grand Bridge, a key segment of the Shanghai-Nanjing-Hefei High-Speed Railway, marks a significant milestone for the project, laying a solid foundation for subsequent construction phases and overall line connectivity [1][3]. Group 1: Project Details - The Liuhe Grand Bridge includes the Ma Chao River cable-stayed bridge, which is a critical and challenging section of the project, designed as a double-tower, double-cable prestressed concrete box girder bridge with a total length of 520 meters [3]. - The main span of the bridge reaches 220 meters, featuring a unique structural design that combines mechanical efficiency with aesthetic appeal [3]. - The project management team has implemented intelligent construction techniques, utilizing a sensor network to monitor stress, deformation, and temperature in real-time, ensuring optimal conditions for construction [3]. Group 2: Quality and Safety Management - A comprehensive responsibility system covering all personnel and processes has been established to ensure quality and safety, achieving a dual control goal of "zero defects" in quality and "zero accidents" in safety [3]. Group 3: Strategic Importance - The Shanghai-Nanjing-Hefei High-Speed Railway is a crucial part of the national "Eight Vertical and Eight Horizontal" high-speed rail network, enhancing connectivity in the Yangtze River Economic Belt and supporting high-quality development in the Yangtze River Delta region [4].