[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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• 2026.05.22 14:18
• [The Hubei section of the Xi'an Shiyan high-speed railway has started operational testing]
• On May 22, 2026, the Hubei section of the West Tenth High Speed Railway officially entered the operational testing phase. The total length of the line is 256.938 kilometers, with a designed speed of 350 kilometers per hour. It has 7 stations and crosses the Qinling Mountains to connect Xi'an and Shiyan. After opening, it will be connected to the Han Shi High speed Railway, with a travel time of about 1 hour from Shiyan to Xi'an and 3 hours from Wuhan to Xi'an. Wuhan, Zhengzhou, and Xi'an will form a high-speed railway triangle loop. Editor/Cheng Liting

• 2026.05.22 14:17
• [Ningxia adds 4000 tons of waste battery recycling project]
• Recently, the Ningxia Government Service Network released a notice on the Environmental Impact Assessment of the Lithium Battery Dismantling and Tiered Utilization Project of Ningxia Zhongmi Technology Co., Ltd. The Yinchuan Approval Service Management Bureau has made an approval decision on the environmental impact assessment of the construction project. The project is located in Suyin Industrial Park, Yinchuan. Two power lithium battery recycling production lines will be built using vacant factories, with an annual processing capacity of 4000 tons of waste lithium batteries. The main products are aluminum powder, copper powder, and black powder. The total investment of the project is 51 million yuan, of which the environmental protection investment is 1.055 million yuan, accounting for 2.07% of the total investment, including the prevention and control of waste gas, noise, solid waste, and wastewater. Editor/Cheng Liting