China’s largest-diameter tunnel boring machine (TBM) “Cangyuan”, developed by CCCC Tianhe Mechanical Equipment Manufacturing Co., Ltd., began excavation for the Haitai Yangtze River Tunnel on August 11, marking a new breakthrough in China’s tunnel construction and large-scale engineering equipment.
China’s largest-diameter tunnel boring machine “Cangyuan”, developed by CCCC Tianhe Mechanical Equipment Manufacturing Co., Ltd., began excavation for the Haitai Yangtze River Tunnel on August 11. [Photo/sasac.gov.cn]
The 39.07-kilometer tunnel, linking Haimen District in Nantong and Taicang in Suzhou, includes a 9,327-meter shield tunnel with a 16.66-meter diameter and maximum water pressure of 0.75 MPa, making it the world’s longest underwater highway shield tunnel.
“Cangyuan” features advanced intelligent systems for autonomous excavation, high-efficiency cutterheads, and real-time safety monitoring, improving productivity and ensuring environmental and operational safety.
China’s largest-diameter tunnel boring machine “Cangyuan” began excavation for the Haitai Yangtze River Tunnel on August 11. [Photo/sasac.gov.cn]
Once completed, the tunnel will strengthen cross-river transport and support integrated development along the Yangtze River Delta.
(Executive editor: Yuan Ting)
