First Continuous Beam on Nanning-Yulin High-Speed Railway Successfully Closes at Qingwanjiang Grand Bridge

2021-07-13 1061 0人评论

On July 12, the first continuous beam of the Nanning-Yulin High-Speed Railway — the Qingwanjiang Grand Bridge in Section 8 of China Railway First Group — was successfully closed, marking another major step forward in the construction of the Nanning-Yulin High-Speed Railway and opening a new chapter for subsequent construction.

The Qingwanjiang Grand Bridge is located in Dali Town, Beiliu City. The bridge has a total length of 2,756.1 meters. Where it crosses the Qingwanjiang River, it uses a 48+80+48 m continuous beam span; other sections use 32 m and 24 m precast box girders, including 76 spans of 32 m precast box girders and 1 span of 24 m precast box girders.

The continuous beam closed this time has a deck width of 12.6 meters and a bottom width of 6.7 meters. The beam body is a variable-depth box girder, and the closure was carried out using the cantilever casting method with form travelers.

The first continuous beam of the Nanning-Yulin High-Speed Railway — the Qingwanjiang Grand Bridge — was successfully closed.

Since entering the site for construction, the builder, China Railway First Group, has followed the construction requirement of "starting is a sprint, commencement is a decisive battle" and has achieved multiple "acceleration" milestones across the entire line: the first project management headquarters, the first central laboratory, the first mixing station, the first steel reinforcement processing yard, the first tunnel excavation, the first pile foundation, the first pile cap, the first pier column, the first to enter subgrade construction, and the first to enter continuous beam construction. While accelerating project construction, it has comprehensively improved project construction management and ensured that project quality fully meets standards, laying a solid foundation for the completion and opening of the Nanning-Yulin High-Speed Railway.


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