On January 10, the pouring of the zero block of the Chengdawan (Chengdu-Dazhou-Wanzhou) high-speed railway Nanchong Jialing River Bridge in Nanchong, Sichuan Province was completed. This is one of the most important nodes in the construction of the bridge, marking the transition from the substructure to the superstructure, and the next step will be the full construction of the main tower and girder.
Block Zero is the core beam section of the main girder of the Jialing River Bridge, with a length of 182 meters, width 16 meters, height 175 meters, the amount of concrete is about 2,900 square meters, and the weight is 7,000 tons. The whole pouring was completed in two parts, and the cumulative pouring time was nearly 70 hours.
With a total length of 6,225 meters, the Nanchong Jialing River Bridge is a control project of the Chengdawan high-speed railway. Construction of the bridge began in September 2022 and is expected to be officially closed in September 2025.
With a total length of 477 kilometers and a design speed of 350 kilometers per hour, the main line of the Chengdu-Dawan high-speed railway will connect Chengdu, Nanchong, Dazhou and Wanzhou in Chongqing, forming a fast and convenient important passage from Sichuan to the east. At that time, the journey from Chengdu to Dazhou, the easternmost part of Sichuan Province, will be shortened from nearly three hours to more than one hour, further promoting the construction and integrated development of the Chengdu-Chongqing Economic Circle.
In addition, as an important part of the "riverside channel" in the national "eight vertical and eight horizontal" high-speed railway network, the Chengdu-Dawan high-speed railway will also be connected to the existing Zhengyu high-speed railway, forming a convenient passenger transport channel from Chengdu to the Central Plains and the Beijing-Tianjin-Hebei region, which will greatly facilitate the travel of the people along the line and promote the economic and social development along the line.
Reporter Zhao Xiong, Fan Jianfeng).