成渝中线高铁重庆段最大跨度连续梁合龙

Core Viewpoint - The successful completion of the last concrete pouring for the Tujiao Hub Interchange Double-Line Bridge of the Chengyu Central High-Speed Railway marks a significant milestone for the project, laying a solid foundation for the entire line's operation [1][3] Group 1: Project Details - The Tujiao Hub Interchange Double-Line Bridge is located in Chongqing's Tongliang District, with a total length of 3,271.6 meters, crossing the Chongqing Third Ring Expressway and the Tong'an Expressway, featuring 92 piers and 2 abutments [1][3] - The continuous beam that was recently completed spans approximately 242 meters, making it the longest continuous beam in the Chongqing section of the Chengyu Central High-Speed Railway [1][3] Group 2: Technological Advancements - The project utilized an upgraded 6-meter intelligent cantilever bridge machine, which allows for longer segment casting in a single pour, making installation and removal more convenient, while enhancing structural safety and stability [3] Group 3: Strategic Importance - The Chengyu Central High-Speed Railway is a crucial part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, connecting Chongqing North Station to Chengdu Station over a total length of 292 kilometers, with a designed speed of 350 kilometers per hour [3] - Upon completion, the railway will connect with several existing and under-construction high-speed rail lines, improving the transportation network in the Chengyu region and significantly reducing travel time for residents along the route [3]