Which country built the Longhai Railway?

Longhai Railway, formerly known as Qin Long Longhai Railway, also known as Blue Ocean Railway, [1] is the main railway line from Lanzhou, Gansu, China (abbreviated as Gansu) to Lianyungang, Jiangsu (abbreviated as Haizhou in ancient times). 1905 Construction started. After more than 40 years of segmented construction, the whole line was connected to 1952 and opened to traffic in July 1953. At present, it has a total length of 1759 km, which is a class I double-track electrified line.

Late Qing dynasty

The Bianluo Railway from Bianliang (now Kaifeng) to Luoyang was built according to the branch line of Luhan Railway. 1904 10 starts in the east and west directions, starting from the main line station. 1909 65438+February, full length 183 km.

Republic of China period

19 12 In September, Beiyang government signed a loan contract with Belgium to build Longhai Railway 1800 km, which was built in the east-west direction on the basis of Bianluo Railway. Two projects started simultaneously in May, 19 13. 1965438+In May 2005, Kaifeng-Shangqiu-Xuzhou section was opened to traffic, with a total length of 277 kilometers. In September of the same year, the 30km section from Luoyang to Kannonji was completed. 1920 in may, the Beiyang government signed a loan contract with Belgium and the Netherlands to continue the construction of the longhai railway. Xuzhou-Haizhou Dapudong section 198.3 km, 1920 started, 1923 was completed. The west section of Kannonji will be completed in June to Lingbao 1927+0 1.

1928 After the establishment of the Ministry of Railways of Nanjing Government, it was decided to continue to build the Longhai Railway. Tong Ling (Tongguan) section is 72km long, with commencement in June 1930+0 1 and completion in February 193 1. Tongxi (xi 'an) section 13 1 km, started in August 1932, completed in February 1934. Xibao (Baoji) section 173km, started in June 1935, and was completed in February 1936. The construction section used the loan returned by Belgium to Geng. The foreign material procurement of Tongxi and Xibao sections shall be undertaken by the French consortium.

Total length of Baoji-Tianshui section of Longhai Railway154km. The railway project is complex and arduous, and the Nanjing government keeps stopping construction and changing it. From May 1939 to February 1945, it took nearly seven years to finish it. After opening to traffic, landslides occurred continuously, which is called the "cecum" of Longhai Railway.

New China period

After the establishment of New China, the construction of Tianshui-Lanzhou section continued until April 1950 and July 1953. At this point, the entire Longhai Railway was completed and opened to traffic. After 1955, hub projects such as Zhengzhou, Lanzhou, Xuzhou, Shangqiu, Xi and Baoji began to be built one after another. 1956 to 1970 Zhengzhou-Baoji section was rebuilt into a double track, and Sanmenxia reservoir project was changed accordingly. 1980 Zhengzhou-Shangqiu double track completed.

Baolan Second Line Project started in 2000. It starts from the east gate of Baoji Station in the east and reaches the west gate of Lanzhou East Station in the west, with a total length of 487 kilometers. It is a national first-class double-track electrified railway and an important project to expand the capacity of the northwest eastern passage. Baolan Second Line is also the longest railway in China, with 22 extra-large bridges, 67 bridges and 8 tunnels 108, with a total length of 106.89 km, accounting for 22% of the total length of the whole line. The double-track project has been completed and the whole line has been electrified. The railway project is arduous, such as Baoji-Tianshui section, crossing Liupan Mountain in Qinling Mountains, extending upward along the north bank of Weihe River Valley, surrounded by mountains and waters, with complex geological terrain, getting off the long tunnel in Gao Qiao and going straight. Its completion and opening to traffic is of great significance to the development of western China.