Beijing Zhangjiakou high speed railway, continuing to write a century old legend

According to the client of China news network, with the figure of "doctor Huang" passing on the railway line on the 20th, the highest speed of Beijing Zhangjiakou high speed railway test reached 385km for the first time, which exceeded 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 "Dr. 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

Beijing Zhangjiakou high speed railway is an important transportation support facility for the 2022 Beijing Winter Olympic Games. After the operation, it only takes 50 minutes from Beijing to Zhangjiakou, more than 2 hours shorter than the current time. More than 110 years ago, Zhan Tianyou presided over the Beijing Zhangjiakou Railway, the first railway independently designed and built by the Chinese. Now, a century old legend is being written. In 1905, he presided over the construction of Beijing Zhangjiakou Railway. Beijing Zhangjiakou Railway is a very arduous project, with a total length of more than 200 kilometers, complex terrain and high mountains. "There are more than 7000 feet of bridges with the highest number of Stonework in the middle of the mountain, and the road is not as dangerous as other places." The

Beijing Zhangjiakou Railway is also famous for its "herringbone" railway design. When Beijing Zhangjiakou Railway arrives at Badaling, the gradient is 33 / 1000, which means that the distance of one kilometer is 33 meters away from the height. For this reason, Zhan Tianyou, later known as the "father of China's railway", invented the "man" shaped railway. The train from Zhangjiakou entered Qinglong bridge from the slope, and then turned back from Qinglong bridge to another track to Beijing. A 6031 a 6031 110 years later, the Beijing Zhangjiakou high speed railway is born. At that time, China was already the king of high-speed rail in the world. In those days, when Zhan Tianyou built the Beijing Zhangjiakou Railway, there was no new mountain opener, ventilator and water pump in China. The builders could only dig through the tunnel with their hands. Now, from blueprint to completion, in the whole life cycle of Beijing Zhangjiakou high-speed railway, giant transformers such as shield machines and bridge erecting machines and a large number of "black technologies" such as BIM, visualization, big data and mobile Internet are widely used. The new Beijing Zhangjiakou high-speed railway opens its way on the mountain and bridges on the water, directly connects the Yanshan Mountains, and goes through tunnels in the whole process, saying goodbye to the history of detour and climbing on the mountain, which greatly shortens the distance. A 6031 a 6031 Beijing Zhangjiakou high speed railway has 10 stations in total, which are Beijing North Station, Qinghe station, Shahe station (without passenger transport), Changping Station, Badaling Great Wall Station, donghuayuan north station, Huailai station, Xiahuayuan north station, Xuanhua north station and Zhangjiakou station. Badaling Great Wall Station is the largest underground high-speed railway station in China. After the opening and operation, the high-speed rail from Beijing to Zhangjiakou and Chongli Winter Olympic venues will arrive within one hour. After completion, the time from Beijing to Zhangjiakou by high-speed rail will be shortened to one hour, and connected with Huzhang and Dazhang high-speed rail lines, which is of great significance for promoting the coordinated development of Beijing, Tianjin and Hebei and connecting the western region. (Zhao Shuang)