The reporter learned from China Railway Construction Corporation Limited(601186) Co., Ltd. on the 30th that important progress has been made in some key highway projects in China on the eve of May Day.
In Yunnan and Guizhou, the Zhenhe Expressway constructed by China Railway 24th bureau group was completed and opened to traffic. Zhenhe expressway has a total length of about 39 kilometers and a design speed of 80 kilometers per hour. According to Lang Guijun, chief engineer of the project, bridges and tunnels of Zhenhe Expressway account for 73.05%. Among them, the Zhaidi River Bridge with 113.34m high main pier is a control project of the whole line.
After the opening of Zhenhe expressway, the drive from Hezhang, Guizhou to Zhenxiong, Yunnan is shortened from 1.5 hours to 35 minutes.
The 16th section of Fujian Railway Group’s Nanjing Wuhan expressway is under construction. The Nanjing section of Zhangwu expressway has a total length of 50.7 kilometers and a design speed of 100 kilometers per hour.
According to Zhang Guobin, the person in charge of the project, the line of the project passes through the national 5A scenic spot, with strict safety and environmental protection requirements. Tianling tunnel and Jiguanshan tunnel in the pipeline section are long tunnels. Shuyang bridge and Qujiang bridge are constructed with high piers and long-span cantilever cast-in-place beams, with high safety risks and great construction difficulties.
After the Nanjing section of Zhangwu expressway is completed and opened to traffic, it has opened up a fast channel for logistics collection and distribution in Zhangzhou Zhaoyin port area to Western Fujian and southern Jiangxi.
In Zhejiang, the first phase of Ningbo section of Hangzhou Ningbo Expressway double track project undertaken by China Railway 15th Bureau and 16th Bureau Group has made important progress, and more than half of the whole hole precast box girder prefabrication and erection tasks have been completed, laying a solid foundation for the completion and opening of the project on schedule.
Wang Xiaofei, project leader of China Railway 16th Bureau Group, introduced that the first phase of Ningbo section of Hangzhou Ningbo Expressway double track project has a total length of 55.833 kilometers. China Railway 16th Bureau undertakes the prefabrication and erection of the whole hole box girder of the 14.5km main line bridge. The monolithic weight of these whole hole precast box girders is up to 1800 tons, which is difficult to construct.
Huang Wei, the person in charge of the project of China Railway 15th Bureau, introduced that after the completion of the project, it will be the largest offshore interconnection project in Asia. At the same time, it will provide valuable experience for China to build large-scale transportation hub projects under complex geological conditions.
