[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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• 2026.11.04 15:21
• [CRFG Completes Tunnel of Central Yunnan Water Diversion Project]
• The Chengjiang Tunnel in Yuxi section of the Yunnan Central Water Diversion Phase II supporting project, undertaken by China Railway First Group, has been successfully completed. The geological conditions of the tunnel are complex and the construction risk is high. After completion, it can provide water supply to the Chengjiang area every year, help protect the ecological environment of Fuxian Lake, and build a strong regional water safety barrier. Editor/Min Jing

• 2026.11.04 15:19
• [China Railway 14th Bureau Starts Taihu Tunnel of Xiyi S2 Line]
• At the bank of the Taihu Lake Lake in Wuxi, the Xiyi S2 Line, which CR14G participated in, was formally driven through the the Taihu Lake Lake Tunnel. The starting shield Pioneer was equipped with an intelligent model, which posed a serious construction challenge. After the completion of the project, it will contribute to the integration of the Yangtze River Delta and promote the coordinated development of Xiyi. Editor/Min Jing