World’s largest, 4,000-ton rail tunneling machine sets continuous excavation record
SMRTR summary
China completed the under-river section of the Chongtai Yangtze River Tunnel using "Linghang," the world's largest high-speed railway shield machine, which tunneled 11.3 kilometers uninterrupted. Trains will now cross at 350 km/h, giving Chongming Island its first high-speed rail link, with Shanghai reachable in just 17 minutes.
SMRTR provides this summary for quick context. The original article belongs to Interesting Engineering.
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