Name: China unveils world's largest high-speed railway tunnel shield machine
Uploaded: 2026-06-02T22:12:33+08:00
Duration: 35 s
Description: China has unveiled Jiaoping No.1 – the world's largest earth pressure balance shield machine for high-speed railway tunnels. The 3,500-tonne giant has a digging diameter of 14.57 meters and uses AI to monitor, adjust and fix faults during tunneling,

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China has unveiled Jiaoping No.1 – the world's largest earth pressure balance shield machine for high-speed railway tunnels. The 3,500-tonne giant has a digging diameter of 14.57 meters and uses AI to monitor, adjust and fix faults during tunneling, tackling the most extreme underground conditions.

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