China News Service, Nanjing, June 12 (Hu Xiaowei, Yang Yanci) On June 12, at the construction site of Yantai High-speed Railway Dongtai Station in Dongtai City, Jiangsu Province, the track laying machine pulled a group of 500-meter-long rails to fall smoothly on the ballast bed, sign The overall construction of the Yantong high-speed railway project, one of the main channels of the country's "eight vertical and eight horizontal" high-speed railways, has shifted from offline construction to the online track laying stage.
Yantong High-speed Railway starts from Yancheng Station of Xuyan High-speed Railway in the north, and passes through Dafeng District and Dongtai City under the jurisdiction of Yancheng City in the south, and Hai'an City, Rugao City, Tongzhou District and Gangzha District under the jurisdiction of Nantong City. There are 6 stations on the whole line: Yancheng, Dafeng, Dongtai, Haian, Rugao South and Nantong West. The main line has a total length of about 156 kilometers and a design speed of 350 kilometers per hour.
The picture shows workers laying tracks. Photo by Hu Xiaowei
According to Wang Yongping, commander of Subei Railway Engineering Headquarters of China Railway Shanghai Bureau Group Co., Ltd., the entire line of Yantong high-speed railway is laid with 500-meter-long steel rails and CRTS III type slab ballastless track. After the laying is completed, the domestic advanced mobile flash welding technology will be used to weld and lock the rail into an ultra-long seamless line. The process error can be controlled to the hairline level, which effectively guarantees the quality of high-speed train operation and improves passenger comfort. degree.
"In order to ensure the safety of track laying construction, the project builder adopts the domestic leading information-based integrated dispatching system, which can realize safety auxiliary functions such as real-time positioning of construction operations vehicles, real-time receipt of dispatching commands, overspeed alarm, instant messaging, etc." Wang Yongping said.
The picture shows the official paving of Yantong High Speed Rail. Photo by Hu Xiaowei
At present, the construction of Yantong high-speed rail project has shifted from resuming production to steadily increasing production, and has formed a comprehensive "combat" construction situation. This track laying operation will adopt the construction organization model of "two sets of track laying machines + two sets of long track transportation equipment", increase the investment of construction resources, stop people constantly, double shift work, and effectively promote the track laying construction. It is expected that July 31 this year A few days ago the completion of the main track laying task.
Yantong High Speed Rail is an important part of China's "eight vertical and eight horizontal" high-speed rail network, and it is also an important transportation context for the construction of the "Belt and Road" and the development of the "Yangtze River Economic Belt".
After completion, Yantong High-speed Railway, Xuyan High-speed Railway and Tonghu Railway form an important auxiliary channel for the southern section of Beijing-Shanghai High-speed Railway, which can facilitate the interconnection of Xuyan, Tonghu and other railways, forming a connection between North China, Northwest China and the Yangtze River Delta The convenient transportation channel to ease the transportation pressure of the Xuzhou-Shanghai section of the Beijing-Shanghai high-speed railway has an important role in improving the overall transportation capacity of the coastal railway channel, enhancing the radiation efficiency of the regional road network, and promoting the high-quality integrated development of the Yangtze River Delta. (Finish)