Guinan high -speed rail enters the rail paving stage

Correspondent Liu Jing Xu Yuexia Yuan Ruiyu Zheng Jiemei

On the morning of August 16th, at the construction site of the Longjiang Multi -Line Bridge of the Longjiang Multi -Line Bridge of the Guizhou High -speed Railway in Hechi, Guangxi, with the multi -line rails of the China Railway 14th Bureau, the 500 -meter long rail was smoothly laid on the bedless bed, marking Guangxi Guangxi The first high -speed rail with a 350 -kilometer -designed speed -Guinan high -speed rail officially entered the rail paving stage.

Gui (Yang) South (Ning) high -speed rail is an important part of my country's "eight vertical eight -horizontal" high -speed railway channel. From the north of the line, Guiyang North Station of the Guiyang Railway Hub finally went to Nanning East Station of the Nanning Railway Hub. It crosses more than 30 ethnic minorities such as the Maonan people, Yao, Buyi, and aquariums, with a total length of about 482 kilometers.

China Railway 14th Bureau undertakes the 597 -kilometer rail paving (including the station line), 889,000 dual -block pillow prefabricated and 14.337 kilometers offline engineering construction tasks. Along the way, it is a typical Karst hard mountainous area. It crosses 110 bridges and 45 tunnels. The bridge tunnel ratio is as high as 90.3%. The geological factories are complex, the weather is high and humid, and the construction organization is very difficult.

Since entering the market at the end of 2017, the 14th Bureau of the China Railway has carried forward the spirit of the railway soldiers, strictly implemented standardized management, continuously increased scientific and technological research, continued to innovate the workflow, and strived to strengthen information construction, and successfully completed various construction tasks in the early stage.

In order to accelerate the rail paving process, China Railway 14th Bureau has increased the joint manufacturers to develop a new multi -line rail paving all -in -one machine to jointly work with the traditional non -砟 rail paving machine. At the same time, the introduction of new equipment such as three -in -one -multi -function tractor, high -power rail push vehicle and other new equipment to ensure equipment guarantee.

According to Deng Jianwei, the person in charge of the Guidan high -speed rail paving work area of ​​the 14th Bureau of China Railway, the multi -line rails all -in -one machine does not need to change the line, and can complete the left and right long steel rails on the same line, which reduces manual investment and reduces it. Safety risks, work efficiency is increased by 50%.

During the rail paving construction, there are many cross -crossing operations and difficult coordination. The longest transport distance is more than 200 kilometers, and the maximum slope of the line reaches 25 ‰. In addition, the special topography and localforms make signal transmission.

According to Wang Baojun, the person in charge of the Guidan High -speed Railway Project Department of the 14th Bureau of China Railway, they set up a dispatch command center to enable the intelligent driving dispatch command system to install signal amplifiers on the station and locomotive, and install base stations in the growth tunnel to ensure smooth communication. 24 Survenge the operating status of the locomotive and the position of the rail paving. There are two groups of temporary roads in each large range, which are used for the interval transfer operation of long -track transport vehicles and welded cars to ensure that cross -construction is safe and orderly.

In order to ensure the smooth and high -speed operation of the train after traffic, the China Railway 14th Bureau has built an intelligent dual -block pillow production workshop with an area of ​​5,000 square meters, and the first domestic automatic digital simulation dual -block pillow intelligent production line was designed to ensure pillow production production to ensure pillow production The error is within 0.5 mm, the daily production rail pillow is 1,600, and the efficiency is increased by 60%.

Gui Nan High -speed Railway is expected to open operation by the end of 2023. At that time, the passage of Nanning to Guiyang will be shortened from more than 5 hours to more than 2 hours, which will be of great significance to promote the in -depth integration of transportation, logistics, commerce and trade, and industries from the two provinces and regions of Guizhou and Guizhou.

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