Recently, the ballastless track bridge deck work on the Liulü Yongjiang Grand Bridge, a key control project of the Nanning–Yulin section of the Nanning–Shenzhen High-Speed Railway constructed by China Railway 14th Bureau Group, has been fully completed, laying a solid foundation for the subsequent track laying and opening operations of the Nanning–Yulin Railway.

Liulü Yongjiang Grand Bridge

The Liulü Yongjiang Grand Bridge is the largest-span low-pylon cable-stayed bridge with ballastless track under construction in China designed for speeds of 350 km/h, with a main span of 320 meters. During construction, the project department consistently adhered to the construction philosophy of "Nanning–Yulin Speed, Quality Leadership," organizing meticulously and managing scientifically, continuously optimizing the construction plan, and overcoming numerous difficulties such as complex geological conditions, high construction difficulty, and demanding technical requirements.

Concrete pouring construction

In the track bed slab construction, the project adopted advanced surveying technology and automated equipment to precisely control the geometric parameters of the track, while strictly controlling the quality of raw materials to ensure the strength and durability of the track bed slab.

It is reported that the main line of the Nanning–Yulin section of the Nanning–Shenzhen High-Speed Railway has a total length of 193.31 kilometers and is the first high-speed railway in Guangxi with a design speed of 350 km/h invested in independently by the region. After opening, the rail travel time from Nanning to Yulin will be shortened from the current fastest 1 hour and 44 minutes to about 50 minutes, which is of great significance for optimizing the regional comprehensive transportation structure, building a modern comprehensive transportation system, promoting the "Two-Bay Linkage" between the Guangxi Beibu Gulf Economic Zone and the Guangdong–Hong Kong–Macao Greater Bay Area, and achieving coordinated regional development of the Pearl River–Xijiang Economic Belt.