[Explanation] At 4:00 a.m. on September 8, the 650-ton crawler crane successfully placed the 106-ton steel truss flyover across the 4 railway business lines in two hours.
The overall hoisting of the overpass is a controlled project with high risk and high difficulty. The successful hoisting in place marks that all the main trusses of the overpass at Henggang Station of Changjiang-Ganzhou High-speed Railway have been installed in place, laying a solid foundation for the completion of the reconstruction of Henggang Station as scheduled.
It is understood that the total construction area of Henggang Station is 7998.2 square meters. The station layout is 3 stations and 8 lines. The center of the station building is set up with a cross-line pedestrian bridge as a passage for passengers entering and leaving the station.
The total length of the overpass is 55.4 meters, the width is 9.4 meters, and the total weight is 220 tons. The pedestrian overpass from the basic platform to the second platform has been completed during the first stage of blockade construction.
The overall hoisting operation of the overpass needs to be constructed by using skylight points on the existing high-speed rail line. The overpass from the second platform to the third platform is 29.3 meters long and weighs 106 tons. The time is short and the precision is high. The project participating units earnestly implement the construction of the business line In order to meet the requirements of safety management, many studies and demonstrations were carried out, professional software was used to simulate the lifting process, trial lifting operations were organized, and the plan was continuously optimized.
[Concurrent] Yu Feng, project executive manager of China Railway 24th Bureau
We adopt the construction method of overall hoisting. After lifting the overpass, rotate it to the top of the overpass support, mainly using the traction rope and the overpass limit plate to adjust the direction and position of the overpass to achieve precise alignment and welding.
[Explanation] According to reports, Henggang Station is an important passenger station on the Beijing-Hong Kong high-speed railway and the Beijing-Kowloon Railway. It is known as the "South Gate of Nanchang". The newly rebuilt Henggang Station will become a new window for Nanchang's opening to the outside world. It is connected with the Shanghai-Kunming high-speed railway through the connecting line, forming a developed, modern and complete transportation network in Nanchang, accelerating the economic integration of the Yangtze River and promoting the rapid development of the local economy.
[Concurrent] Lou Tingzhi, Deputy Commander of the Construction Headquarters of China Railway Nanchang Bureau
After the new flyover project is put into operation, the next step will be to improve the passenger flow operation efficiency of Xin Henggang Station, effectively increase the passenger capacity of Chang-Gan, Beijing-Kowloon and Shanghai-Kunming railway lines, and make Henggang Station a new one in Jiangxi Province. Passenger hub.
Huashan Wang Lu Hu Hong reported from Nanchang, Jiangxi
Responsible editor: [Luo Pan]