On the morning of the 30th, the Chongtai Yangtze River Tunnel “Pilot”, the world's largest diameter high-speed rail shield machine independently developed by China, successfully crossed the Yangtze River waters and was able to complete the shield tunnel in the water section of the Chongtai Yangtze River Tunnel.

On the morning of the 30th, the Chongtai Yangtze River Tunnel “Pilot”, the world's largest diameter high-speed rail shield machine independently developed by China, successfully crossed the Yangtze River waters and was able to complete the shield tunnel in the water section of the Chongtai Yangtze River Tunnel.