[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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• 2026.06.02 14:16
• [Self propelled boundary river emergency rescue floating crane project]
• The China Russia border river emergency rescue floating crane project of Heilongjiang Provincial Water Traffic Rescue Center has started construction, with the addition of a 300 ton self-propelled floating crane and supporting work vessels, making it the largest self-propelled and fully revolving lifting vessel in the field of inland river rescue in the three provinces and one region of Northeast China. The ship integrates cutting-edge technologies such as full electric propulsion, intelligent search, and 300 ton lifting, filling the gap in modern salvage of large-scale accidents in the Jiehe River basin and building a fully chain intelligent salvage system. Editor/Cheng Liting

• 2026.06.02 14:15
• [The construction of the northern section of Phase I of Beijing Metro R4 Line has started]
• On June 2, 2026, the mobilization and deployment meeting for the construction of the northern section of the first phase of Beijing Metro R4 Line was held, marking the official entry of this high-capacity and fast backbone line located in the northeast direction of the capital into the construction phase. As a major landmark project for implementing the 15th Five Year Plan in Beijing, the northern section of Phase I of R4 Line is 20.78 kilometers long, starting from Dongba in Chaoyang District in the south and ending at Yanjing Bridge in Shunyi District in the north, connecting Chaoyang, Tongzhou, and Shunyi districts. Editor/Cheng Liting