合湛高铁全线进入海上主体施工阶段 预计2028年底建成通车

Core Viewpoint - The construction of the Tieshan Port Cross-Sea Bridge, a key segment of the Guangxi-Hainan High-Speed Railway, has officially commenced, marking the transition to the marine construction phase of the entire railway line [1][3]. Group 1: Project Overview - The Tieshan Port Cross-Sea Bridge spans a total length of 8,473.478 meters, requiring 4,332 pile foundations and 578 piers, with 99 marine piers and 919 marine pile foundations [3]. - The Guangxi-Hainan High-Speed Railway is designed for a speed of 350 km/h, with a total length of approximately 139 kilometers, of which the Guangxi section is about 63 kilometers, and bridges account for 78% of this section [5]. Group 2: Environmental Considerations - The construction will address significant challenges such as large tidal differences, high salt mist corrosion, and strong typhoon intensity, which complicate the construction process [3]. - Efforts are being made to minimize the impact of construction on the surrounding environment and wildlife, particularly in areas with mangroves and marine life [3]. Group 3: Economic and Social Impact - The Guangxi-Hainan High-Speed Railway is positioned as a crucial inter-regional passenger transport line, enhancing the railway network layout in the region and facilitating travel for local residents [5]. - The project is expected to be completed by the end of 2028, significantly improving the railway transport capacity along the Guangdong and Guangxi coasts and promoting high-quality economic and social development in the region [5].