World's largest-diameter high-speed rail shield tunneling machine resumes tunneling #coolchina

#China's self-developed "Linghang," the world's largest-diameter high-speed rail shield tunneling #machine, has resumed tunneling after 41 days of maintenance. With a 15.4-meter cutter head and a weight of 4,000 tonnes, it is being used to excavate the land section of the Chongtai Yangtze River Tunnel. This project is expected to set a new world record for ultra-long single tunneling and is scheduled for #completion by the end of 2026.



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For more:
https://news.cgtn.com/news/2026-09-09/World-s-largest-diameter-high-speed-rail-shield-tunneling-machine-resumes-tunneling-in-China-1QiWqNYX6Vi/p.html


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