What information does Zhan Tianyou have about railway construction?

Zhan Tianyou studied in Weihafen Primary School and Nuhafen Middle School in the United States. He graduated from Yale University with 188 1, and wrote his graduation thesis "Research on Wharf Crane", where he obtained his bachelor's degree and returned to China in the same year. After returning home, Zhan Tianyou attended Mawei Ship Administration Preparatory School and was sent to Fujian Navy flagship "Wu Yang" as a gunner to participate in Mawei naval battle. After the war, he was transferred to the Huangpu Naval Academy to teach.

From 65438 to 0888, Zhan Tianyou was recommended by his old classmate Mou to be an engineer in China Railway Company. Zhan Tianyou, which has been lost for seven years, has the opportunity to join the railway industry of the motherland. At this time, it was the construction of the Tianjin-Tangshan Railway. He didn't want to stay in Tianjin for a long time, so he went to the construction site to share joys and sorrows with the workers. As a result, it was completed and opened to traffic in only 80 days. However, Li Hongzhang played the role of the Englishman Jinda and promoted Jinda as the chief engineer. Zhan Tianyou's works were therefore copied.

1890, the Qing government repaired the internal and external railways (now Beijing-Shenyang Railway), and Jinda was the chief engineer. 1892, the project goes to Luanhe Bridge, and many countries want to win this business. Of course, Jinda took the Englishman first, but the Englishman Cox failed because the bridge could not be built. Contractors from Japan and Germany also failed. As the delivery deadline approaches, Jinda has to ask Zhan Tianyou. Zhan Tianyou made a detailed analysis of the reasons for the failure of various countries, and made a thorough survey of the geological soil at the bottom of Luanhe River. Later, he decided to change the pile location, adopt the traditional method of China, dive into the bottom of the river with divers from China, cooperate with machine operation, successfully complete the piling task, and build the Luanhe River Bridge. This victory has strengthened the ambition of the people of China. 1894 British engineering research association elected Zhan Tianyou as its member. ?

1905 In May, the Engineering Bureau of Beijing-Zhangjia Railway Administration was established, with Chen Ren as general manager and Zhan Tianyou as general manager and chief engineer. 1906, Zhan Tianyou was promoted to general manager and chief engineer. Zhan Tianyou clearly knows the difficulty of this task. He must first resist cynicism from all sides: some people say that he is "overreaching", "only spending a few dollars" and even "daring". In a letter to Mrs Northrop, an American teacher, he said: "If the Beijing-Zhangjiang project fails, it will be not only my misfortune, but also the misfortune of China engineers, and it will bring great losses to China. Before and after I accepted this task, many foreigners publicly declared that China engineers could not undertake the arduous project of masonry and cave dwelling on the Beijing-Zhangjiakou line, but I persisted in my project. " . It fully embodies the patriotism and sense of national responsibility of China intellectuals.

On September 30th 1906, all the first blocks of the project were opened to traffic, and the second blocks started at the same time. The difficulty lies in the second quarter. First of all, we must open four tunnels: Juyongguan, Wuguitou, Shifosi and Badaling. The longest length of Badaling Tunnel is1.092m.. This requires not only accurate calculation and correct command, but also new mountain cutters, ventilators and pumps. The former is not a problem for Zhan Tianyou, while the latter is not available in China at that time, and it can only be imagined by the hands of workers.

They overcame many difficulties and finally completed the second bid section in September 1908. The difficulty of the third bid section is second only to that of Guangou. The first one is Huailai Bridge, the longest bridge on Zhangjing Road, which is erected by 7 steel beams 100 feet long. Thanks to Zhan Tianyou's correct command, it was completed in time. April 2 1909 train goes to Xiahuayuan. Although the section from Xiahuayuan to Jimingyi mining area is not long, the project is extremely difficult. On the right is Yanghe River, and on the left is Rocky Mountain. A six-foot-deep tunnel should be opened on the mountain, and a seven-mile-long riverbed should be padded under the mountain. Zhan Tianyou paved the river bed at the foot of the mountain with stones paving the road on the mountain. In order to prevent mountain torrents from impacting the subgrade, cement bricks were used for protection, and the third section was successfully completed.

Imperialism always wants to seize this road. At the beginning of the project, Japanese Yujiro wrote to Yuan Shikai at the imperial gate, saying: China people can't afford to build this road, so it's safer to ask Japanese technicians. The Englishman Jinda also came to intercede for Japan. Zhan Tianyou flatly refused to hire any foreigners on this road. After the Juyongguan tunnel project started, hordes of foreigners often came to spy in the name of hunting, hoping that the project would fail in order to take advantage of people's danger. Zhan Tianyou set the tone for the people of China with excellent results.