Ballastless track is widely used in high-speed railways in China, and a few of them use ballasted track. China's high-speed rail lines uniformly operate electric EMU trains with a construction speed of more than 250 km/h. Trains are divided into three types: "starting with letters G, D and C", and vehicles are divided into CRH and CR series models.
At present, the high-speed railway in China is limited to the national railway line. Although the design speed of Shanghai maglev track line is 430km/h, which exceeds the railway speed standard of any country, it does not belong to the category of conventional high-speed railway because it has no national railway nature and is neither managed by the national railway department nor connected with the national railway network.
Extended data:
Domestic standards:
The construction of high-speed rail in China has experienced a process from start to maturity. The process involved in the definition of high-speed rail (high-speed rail standard) is as follows:
In the early days of China, there was no express provision for high-speed railway. In the early days, the engineering design and test speed of the MRT Qinhuangdao-Shenyang Passenger Dedicated Line exceeded the engineering limit and bearing capacity of the existing line, which made the railway industry argue for many years whether it was a high-speed railway or not.
The Beijing-Tianjin intercity railway was opened in August 2008 1, with a speed of 350 kilometers per hour. It is the first recognized and uncontroversial high-speed railway. Comparison: According to the 1985 European Geneva Agreement, the speed of the newly-built passenger-freight high-speed railway is more than 250 kilometers per hour, the speed of the newly-built passenger dedicated high-speed railway is more than 350 kilometers per hour, and the Beijing-Tianjin intercity reaches 350 specifications.
It is worth mentioning that at the end of 2006, a press conference was held to prepare for the sixth speed increase of China Railway. Hu Yadong and Wang Zhiguo, vice ministers of the Ministry of Railways, said that the railway with a speed of 200 kilometers per hour reached 6,003 kilometers, including 250 kilometers in individual sections of Beijing-Harbin, Beijing-Guangzhou and Beijing-Shanghai, and so on. Their word is "express".
Baidu encyclopedia-high-speed railway