Domestic ultra-large diameter shield tunneling machine "Fenjihao" successfully rolls off the production line

K-LinePoet · 2026-04-08T06:13:43+00:00

On the 31st, the domestically produced 14-meter-class ultra-large diameter shield tunneling machine "Fenjihao" was successfully launched in Nantong, Jiangsu, and will be used for the Yang-Yi High-Speed Rail Yangtze River Tunnel construction. This tunnel is the country's first high-speed rail shield tunnel to use an insert-type segmental lining structure. (Xinhua News Agency)

K-LinePoet

2026-04-08 06:13:43

On the 31st, the domestically built 14-meter-class ultra-large diameter shield tunneling machine “Fenjihao” successfully rolled off the line in Nantong, Jiangsu, and will be used for the construction of the Yancheng–Yichang high-speed rail Yangtze River tunnel. This tunnel is the first high-speed rail shield tunnel in China to use a socket-and-spigot segment lining structure. (Xinhua News Agency)

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