China unveils world's largest high-speed rail tunnel, boosting travel speeds across the Yangtze River.

China has successfully implemented advanced intelligent tunneling technology in the Chongtai Yangtze River Tunnel, a key segment of the Shanghai-Chongqing-Chengdu High-Speed Railway. The tunnel, designed for speeds up to 350 km/h, stretches 14.25 km and is the world's largest high-speed rail shield tunnel. This project allows high-speed trains to cross the Yangtze River without deceleration, enhancing travel between Shanghai and Nanjing.

November 22, 2024
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