通苏嘉甬高铁首座斜拉桥主塔封顶

Core Viewpoint - The successful topping of the main tower of the Zhangjiagang River cable-stayed bridge marks a significant milestone in the construction of the Tongsu-Jia-Ning high-speed railway, laying the foundation for the subsequent completion of the entire bridge [1] Group 1: Project Overview - The bridge spans the Zhangjiagang River and the Zoumatang River, featuring a single-tower double-cable prestressed concrete design with a total length of 417.7 meters [1] - Construction began in October 2024, and the team overcame challenges such as tight schedules and complex structures, completing all processes from pile foundation to main tower topping in just 15 months using advanced technologies [1] Group 2: Importance of the Railway - The Tongsu-Jia-Ning high-speed railway is a crucial part of China's "Eight Vertical and Eight Horizontal" high-speed rail network along the coast, connecting Nantong in the north to Ningbo in the south [1] - The new line will be 301 kilometers long, designed for a speed of 350 kilometers per hour, with 10 stations planned and a construction period of 5 years [1] - Upon completion, it will connect with multiple existing rail lines, enhancing the regional transportation network and supporting the high-quality development of the Yangtze River Delta integration [1]