On May 31, at the construction site of the Yibin Lingang Highway-Railway Dual-purpose Yangtze River Bridge, the control project of the Zigong-Yibin section of the South Sichuan Intercity Railway, the steel box girder of the last section of the mid-span was precisely installed, and the Helong was successfully completed! Yibin Lingang Highway-Railway Yangtze River Bridge is located in the east of Yibin City, Sichuan Province, connecting Sanjiang New District and Xuzhou District.The total length is regarding 1742 meters, the bridge deck width is regarding 64 meters, and the main span is 522 meters. In the same type of bridge, its width and span are ranked first in the world.
There are 4 high-speed railway lines in the middle of the bridge with a speed of 300 kilometers per hour, two-way 6-lane urban expressways on both sides, and sidewalks and non-motorized vehicle lanes are laid on the outermost side.
When completed, it will create 3 world firsts:The world’s first road and high-speed railway bridge, the world’s widest and largest span steel box girder cable-stayed bridge.
During the construction process, the project team has crackedThe largest deep-water rock-socketed foundation in the upper reaches of the Yangtze River, the construction of super-high and super-large cable towers, and the hoisting of super-large, super-wide and super-heavy steel box girderThree technical problems, and at the same timeThe first “octopus” pouringimprove the blanking accuracy, construction efficiency, pouring quality,Synchronous construction of steel box girder and cable tower in tower areathe construction period was shortened by regarding 4 months.
The South Sichuan Intercity Railway, also known as the Mianlu High Speed Railway, is located in Sichuan Province and connects Mianyang City and Luzhou City. It is an important part of the intercity railway network in the Chengdu-Chongqing Economic Zone.
The line starts from the Lu section from Neijiang North Station to Luzhou Station, with a total length of 128 kilometers, 7 stations, and a design speed of 250 kilometers per hour.
Among them, the Neizi Lu section (Neijiang-Zigong-Luzhou) started construction on December 27, 2016, and opened for operation on June 28, 2021.
