Double land No. 1 special bridge construction pouring construction site. Courtesy of the Project Department of the Sichuan-Chongqing Section of the Chongqing-Kunming High-Speed Railway of the Fourth Bureau of China Railway
Chengdu, January 20 (China News Network) -- On the afternoon of the 20th, after 48 hours of continuous pouring operations, the suspension continuous beams of the four-standard double land No. 1 special bridge in front of the Sichuan-Chongqing section of the Chongqing-Kunming high-speed railway were smoothly completed, creating favorable conditions for the early opening of the Sichuan-Chongqing section of the Chongqing-Kunming high-speed railway.
It is understood that the Shuangdi No. 1 Special Bridge is located in the territory of Jiangyang District, Luzhou City, the total length of the bridge is 2250.27 meters, the design speed is 350 kilometers per hour, it is a ballastless track double-line high-speed railway special bridge, the main bridge continuous beam is 144 meters long, the design adopts the hanging basket symmetrical cantilever pouring construction, the bridge pier adopts a circular end shaped solid pier, and the highest pier height is 29 meters. "Shuangdi No. 1 Special Bridge is the first special structure bridge in the direction of the four-standard beam field of the Sichuan-Chongqing section of the Chongqing-Kunming high-speed railway, and the construction organization plan is carried out in many aspects according to the start time, the engineering situation between the beam field and the site, the construction progress and other aspects, which lays a theoretical foundation for the smooth erection of the box girder of the bid section." Wu Xinli, head of the Yukun high-speed rail bridge of the Second Academy of China Railway, said.
Shuangdi No. 1 special bridge suspension pouring continuous beam construction site. Courtesy of the Project Department of the Sichuan-Chongqing Section of the Chongqing-Kunming High-Speed Railway of the Fourth Bureau of China Railway
Wu Yule, manager of the four standards and two branches of the Sichuan-Chongqing section of the Yukun high-speed railway of the Fourth Bureau of China Railway, said that the continuous beam beam body of Helong is a single box single chamber, variable height, variable section box girder, and the bottom plate, web plate and top plate are partially thickened to the inside, all of which change linearly according to a straight line, and the construction is difficult.
It is reported that after the opening of the Chongqing-Kunming high-speed railway, it will strengthen the connection between the twin-city economic circle in the Chongqing region and the central Yunnan region, greatly reduce the railway travel time from Chongqing to Kunming, greatly improve the travel conditions of the masses along the line, and promote the high-quality economic and social development along the line. (End)
Source: China News Network