On June 20, when the Zhengyu high-speed rail line was opened, a video using drones and time-lapse photography restored the construction process of the Zhengyu high-speed rail Wushan Daning River double-track bridge.
The bridge is located in the Small Three Gorges Scenic Spot in Wushan County, Chongqing City. It is the first large-span high-speed railway in China. Ribs, 11,699 cubic meters of outsourcing concrete and 34 segments of steel box girder with a total weight of about 3,300 tons are connected.
According to the China Railway Second Bureau, as one of the key and difficult control projects of the Zhengyu high-speed railway, the Wushan Daning River double-track bridge on the Zhengyu high-speed railway was initially carried by people and horses, and more than 40 "carrymen" and several horses worked for 20 months. , to lay a solid foundation for subsequent construction.
During the construction period, 2 construction methods and 6 patents were obtained.
(Reporter Lu Zuobing, Zhang Xu and Liu Peng)
Responsible editor: [Luo Pan]