This road "is separated by high mountains, with the most masonry, and the bridge is more than 7,000 feet, so it is difficult to find other places", especially "Juyongguan and Badaling, with many mountains and steep bends, have been tried by all provinces, and it is the most difficult, even Taixishu regards such projects as extremely difficult". "From Nankou to Badaling, the height difference is 180 feet, and every 40 feet, it will be increased by one foot." After the news of China's own Beijing-Zhangjiakou Railway came out, foreigners sarcastically said that the China engineer who built this railway probably hasn't been born yet. Zhan Tianyou bravely undertook the arduous task of the chief engineer and encouraged the engineers to win glory for the country. He personally led the engineering team to survey the alignment and selected the lower-cost one from the three surveyed routes. From Xizhimen to Zhangjiakou, it passes through Shahe, Nankou, Juyongguan, Badaling, Huailai, Ji Ming Post and Xuanhua. The most difficult part of this route is the Guangou section from Nankou to Badaling, which is not only steep in terrain but also steep in slope. In Badaling, near Qinglong Bridge, in order to cross the steep ravine of Dujun Mountain in Yanshan Mountains, the 22-kilometer section of the line adopts zigzag track, and the train turns back and climbs. However, the slope is still 33.7‰, and two locomotives are needed for traction. There are four tunnels on the railway, of which Badaling Tunnel is1.092m long, and it is excavated by shaft method. Juyongguan tunnel is 400 meters long. In addition, there is a 200-meter-long Huailai Bridge with steel frame structure.
Beijing-Zhangjiakou Railway started construction on September 4th, 1905. Together with railway staff, Zhan Tianyou successfully completed two difficult tunnel projects, Juyongguan and Badaling, overcoming difficulties such as poor technical strength. Four years later,1/kloc-0 was completed on August 6th, and/kloc-0 was opened to traffic on February 2nd, with construction time. Moreover, the construction cost is 352,000 taels less than the original budget (some people say that it saved 282,000 taels). The total cost is only one-fifth of the price charged by foreign contractors in the past, which can be described as low cost, good quality and fast completion. In the face of hard facts, foreigners can't help but be impressed. Jing-Zhang Railway is the first railway designed and built by China people themselves, which is the glory of China people and China engineering and technical circles, and also the victory of China people's anti-imperialist struggle in the modern history of China. 1922 erected a bronze statue of Zhan Tianyou at Qinglongqiao Railway Station, 1987 built the Zhan Tianyou Memorial Hall nearby. At that time, all buses entering Beijing had to stop for half an hour to pay homage to the bronze statue and memorial hall of Zhan Tianyou.
Today's Beijing-Zhangjiakou Railway is the first section of beijing-baotou railway between Beijing and Baotou. Due to the poor carrying capacity of the original Jinggou section of Beijing-Zhangjiakou Railway, 65438 to 0952 sand-rich lines were built between Fengtai and Shacheng (Huailai). The Fengsha Line took the route that Zhan Tianyou thought was better at that time, but it was forced to give up because of the high cost. Fengsha line has always been an important place for coal transportation. 1972 fengsha line was converted into double track, 1984 electrified. Now many passenger trains have been diverted to the Fengsha line.