Chinese shield tunneling machines

The exhibits display miniature scale models of shield tunneling machines on the exhibit stand, allowing visitors to understand the internal structure of shield tunneling machines, and to learn about the structural working principles of shield tunneling machines and the development process of domestically produced shield tunneling machines in China by operating touch screens.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

When the Qing Dynasty fell in 1912, China's railway mileage was only 9000 kilometers, and most of it was still in the hands of foreigners. For the weak Nationalist government and displaced Chinese people at that time, this was not a dream that could be criticized, but a vague fantasy! Nowadays, China has 139000 kilometers of railways, 6730 kilometers of urban rail transit, and 5.01 million kilometers of highways, including over 18000 kilometers of railway tunnels; Highway tunnels exceeding 20000 kilometers; The subway is 6000 kilometers long.