Cases of major railway projects

The new Chengdu-Lanzhou Railway is one of the important projects in the development of western China, which includes four sections: Chengdu to Chuanzhusi section, Chuanzhusi to Mianyang section, Mianyang to Guangyuan section and Guangyuan to Lanzhou section. The section from Chengdu to Chuanzhusi is part of the railway construction. The section from Chengdu to Chuanzhusi is about 85.7 kilometers long, the construction standard is single-line electrification, the design speed is 250 km/h, and it is equipped with large tunnels such as Dadu River Bridge, Pengshan Tunnel and Koushuigou Tunnel, Zhonggu Mountain, etc. The terrain is undulating, and the construction is difficult. It is estimated that the total investment of this section is about 20.4 billion yuan, and its construction progress is synchronized with the whole line, and construction has begun.

Domestic transmission line case

The Zhumadian to Wuhan AC Line project is a project invested and constructed by China Southern Power Grid, which aims to solve the contradiction between energy supply and demand in Zhumadian, Henan Province and strengthen the connection between Zhumadian and Wuhan, Hubei Province. The project has a total investment of 1.64 billion yuan, with a total length of 232 kilometers, including 220 kV transmission lines, cable lines and power transformation works. The design power is 1.2 million kilowatts, and the transmission capacity can reach 3 billion KWH per year.