en.Wedoany.com Reported - In the early hours of May 27,

the Shituo Yangtze River Bridge, a key control project for the new Chongqing-Wanzhou High-Speed Railway

(hereinafter referred to as the Chongqing-Wanzhou High-Speed Railway),

was successfully closed along its entire line,

marking the completion of all 149 bridges along the route

and laying a solid foundation for its scheduled opening on time.

The Chongqing-Wanzhou High-Speed Railway is a vital component of China's "Eight Vertical and Eight Horizontal" high-speed rail network, specifically the Baotou (Yinchuan)-Haikou and Beijing-Kunming corridors, and also serves as an important supplement to the Yangtze River High-Speed Railway corridor. The line starts at Chongqing East Station, passes through Nan'an District, Banan District, Fuling District, Fengdu County, and Zhong County in Chongqing, and ends at Wanzhou North Station. The main line is 251 kilometers long, designed for a speed of 350 kilometers per hour, with a total of five stations along the route: Chongqing East, Fuling North, Fengdu North, Zhong County, and Wanzhou North.

The Shituo Yangtze River Bridge is located in Yihe Town, Fuling District, Chongqing. Its main bridge is a dual-pylon cable-stayed bridge with a separated hybrid composite girder design for both road and rail on the same level, featuring a diamond-shaped dual-pylon structural design.

The total length of the bridge is 1,416.9 meters, with a main span of 608 meters. The main pylons are super-tall structures, with the No. 6 main pylon reaching a height of 253 meters. The construction process involved a long cycle and complex techniques.

For the closure of the railway steel girders, the project construction team adopted a construction plan involving cantilever casting of the side-span concrete girders using form travelers and cantilever erection of the mid-span composite girders. The hoisting operations under main channel traffic control adopted a "full closure" navigation mode, and after 24 hours, the bridge achieved precise closure.

Currently, the main works for tunnels, roadbeds, and bridges along the entire Chongqing-Wanzhou High-Speed Railway have been completed, and track laying and post-station construction are underway. Once completed and opened to traffic, the project will strengthen the connection between the urban agglomeration in the Three Gorges Reservoir area of northeastern Chongqing and the main metropolitan area, greatly facilitate travel for people along the route, promote economic and social development along the line, and hold significant importance for better serving the construction of the Chengdu-Chongqing Economic Circle.

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