Beijing Zhangjiakou high speed railway test top speed reached 385 km / h for the first time

China News Agency, Beijing, Oct. 20 (reporter Zhou Yin): with the figure of "doctor Huang" passing on the railway line on the 20th, the highest test speed of Beijing Zhangjiakou high speed railway reached 385km for the first time, exceeding the design maximum speed of 350km10%. This is the highest speed of the train after the step-by-step speed-up since the joint commissioning and test work started on October 5.

China Railway Electrification Bureau said that after the on-site high-speed comprehensive inspection of the train "doctor Huang" professional equipment, it was confirmed that the catenary guide height pull-out value, hard point and arcing rate did not exceed the mark, which laid a solid foundation for the subsequent operation of Beijing Zhangjiakou high-speed railway. The design speed of the

Beijing Zhangjiakou high speed railway has five grades: 120, 160, 200, 250 and 350km / h. The speed exceeds the designed maximum speed by 10% and reaches 385km. There is no problem in train operation, which is an important technical gateway for the smooth operation of Beijing Zhangjiakou high speed railway. The joint commissioning and test work of Beijing Zhangjiakou high speed railway is to use the high-speed railway comprehensive test train "Dr. Huang" to carry out real-time detection of the track, subgrade, catenary, communication signal, etc. along the line by continuously improving the speed level, and to continuously debug and optimize all business systems and the overall system along the line, so as to ultimately ensure that the train speed reaches 385km per hour and all parameters operate well. Stable, so that the line function and performance meet the standard requirements. During the follow-up test and detection of

, "Dr. Huang" will continue to carry out the non-stop patrol detection of the up and down lines of Beijing Zhangjiakou high speed railway, transmit the detection data to the in vehicle monitoring center in real time and analyze them, comprehensively formulate the project optimization and repair plan, and adjust them in time. Up to now, the test results show that the dynamic geometric parameters of the catenary of Beijing Zhangjiakou high speed railway are good as a whole, and there are no defects such as the pull-out value of the catenary, the height of the catenary and the hard point. Mao Minghua, commander of Beijing Zhangjiakou high speed railway headquarters of China Railway Electrification Bureau, introduced that the construction of Beijing Zhangjiakou high speed railway integrates a large number of advanced technical means and intelligent elements. For example, the company has independently developed intelligent catenary cantilever, hanging string production line, intelligent catenary pole car, automatic drilling and installation platform in tunnel and other professional chemical appliances; adopted robot inspection, introduced health self diagnosis system and natural disaster monitoring system based on big data; installed intelligent waste treatment system in Qinghe station, the largest transfer station of Beijing Zhangjiakou high-speed railway, etc. 。 The

Beijing Zhangjiakou high speed railway is a national key construction project, an important basic project for the coordinated development of Beijing, Tianjin and Hebei, an important transportation support line for the 2022 Beijing Winter Olympic Games, and the world's first high-speed railway with a design speed of 350km / h in the cold and windy sand. The line starts from Beijing North Station and ends at Zhangjiakou station, Hebei Province, with a total length of 174km. After the completion and opening to traffic, the time from Beijing to Zhangjiakou by high-speed rail will be shortened to less than one hour, which is of great significance to the Olympic Games and the integrated development of Beijing, Tianjin and Hebei.