[Shenjiang No. 1 participated in the construction of the deepest submarine tunnel] On August 23, China's self-developed subsea tunnel shield machine rolled off the assembly line in Changsha, Hunan. The equipment shield machine has an excavation diameter of 13.42 meters, a total length of 130 meters, and a total weight of 3,800 tons. It will participate in the construction of China's deepest submarine tunnel-the Zhujiangkou Tunnel of the Shenzhen-Jiangmen Railway. The Pearl River Mouth Tunnel is a key control project of the Deep River Railway. "Shenjiang No. 1" crosses the section with a total length of 3590 meters. The entire line is tunneled downhill for a long distance and passes through the Pearl River estuary. The engineering geological conditions are extremely complicated. Editor/Xu Shengpeng

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• 2026.05.07 17:39
• [The entire Chengdu Chongqing high-speed railway has completed the installation of beams]
• On May 5, 2026, the final box girder erection of the Jialing River Extra Large Bridge on the Chengdu Chongqing High Speed Railway was completed, marking the successful conclusion of the entire box girder erection task. This high-speed railway is an important part of China's Eight Verticals and Eight Horizontals along the Yangtze River, with a total length of 292 kilometers and a designed speed of 350 kilometers per hour. Multiple smart technologies are being applied during construction. Currently, the main offline project has been completed and switched to ballastless track construction. After opening, it will contribute to the construction of the Chengdu Chongqing economic circle.Editor/Gong Ziwei

• 2026.05.07 10:18
• [China Harbour won the bid for the dredging project of Aktau Port]
• In May 2026, China Harbour won the bid for the dredging phase I project of Aktau Port in Kazakhstan. The port is a core hub of the Trans Caspian International Transport Corridor, and the project will dredge the harbor basin to ensure the passage of large ships.Editor/Gao Xue