Collector
China just completed the excavation of the under-river section of the Chongtai Yangtze River Tunnel – a 14-kilometer-long high-speed rail tunnel 89 meters below the country's largest waterway, using the world's biggest tunneling machine. For more: | Collector
China just completed the excavation of the under-river section of the Chongtai Yangtze River Tunnel – a 14-kilometer-long high-speed rail tunnel 89 meters below the country's largest waterway, using the world's biggest tunneling machine. For more:
CGTN

China just completed the excavation of the under-river section of the Chongtai Yangtze River Tunnel – a 14-kilometer-long high-speed rail tunnel 89 meters below the country's largest waterway, using the world's biggest tunneling machine. For more:

China just completed the excavation of the under-river section of the Chongtai Yangtze River Tunnel – a 14-kilometer-long high-speed rail tunnel 89 meters below the country's largest waterway, using the world's biggest tunneling machine. For more:

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