At about 14:00 on November 11, 2022, at the construction site of XCSCZQ-1 bid section of Xi'an-Chengdu Railway, the first pile of Xining Chengdu Railway surveyed and designed by the First Railway Research Institute was successfully drilled as the drilling rig was slowly driven into the ground, marking that the bridge construction of this line has officially entered the substantive construction stage.

The Xining Chengdu Railway stretches across Qinghai, Gansu and Sichuan provinces. The bridge length of Xining Huangshengguan section is 124 kilometers, and the bridge line ratio of the main line is about 24.86%. The longest bridge in this line is Ruoergai Requ River Bridge located in Sichuan Province, with a length of 8949.60 meters; The highest bridge is Jianzha Yellow River Bridge, which is mainly designed to span the Yellow River. The rail surface is about 80 meters from the riverbed surface and about 50 meters from the normal water surface. The main bridge spans the Yellow River with a main span of 366 meters and a continuous steel truss arch.

Rendering of Jianzha Yellow River Bridge

In order to ensure the smooth progress of the project on schedule, the First Railway Design&Research Institute will immediately deploy a professional team to enter the site, closely cooperate with relevant parties, and strictly control the construction process technology. The bridge professional technical team overcame the harsh conditions of plateau high and cold, did a solid job of technical disclosure before construction, cooperated with the improvement of the first pile foundation construction plan and relevant emergency plans, effectively guaranteed the mobilization of construction machinery, equipment, materials and other materials on schedule, and promoted the high-quality and high standard construction of Xining Chengdu Railway.

Technical disclosure of construction drawing design of Xi'an-Chengdu Railway in special books for bridges

Xining Chengdu Railway is an important railway channel connecting northwest China with southwest China and south China. It is also a part of the "eight vertical and eight horizontal" China Lanzhou (West) Guangzhou high-speed railway channel of the medium and long-term high-speed railway network. After the whole line is completed and opened to traffic, it will speed up the solution to the problem of "leaving too much space" in the western road network, greatly facilitate the travel of people of all ethnic groups along the line, strengthen the exchanges between Lanzhou, Xining urban agglomeration and Chengdu Chongqing urban agglomeration, and promote the connectivity between the Silk Road Economic Belt and the Yangtze River Economic Belt, which is of great significance to promote economic and social development along the line and boost rural revitalization. Editor/Zhao E