[China's large-diameter and multi-support TBM Plateau Pearl off the line at CRCC] Recently, the domestic large-diameter multi-support TBM Plateau Pearl, jointly built by CRCC and the 14th Bureau of China Water Resources, rolled off the production line in the Changsha Second Industrial Park of China Railway Construction Heavy Industry. The equipment will be used for construction under extreme conditions such as high altitude, high ground stress, and super hard rock. The excavation diameter of TBM is 10.23 meters, the length of the whole machine is about 185 meters, the total weight is about 2300 tons, and the installed power is 8200 kilowatts. Editor/Ma Xue

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• 2026.03.22 16:58
• [Doha under Iranian missile threat: Google and emergency evacuation of university town]
• On the early morning of March 14, 2026 local time, the tranquility of Doha was disrupted. Due to Iran's announcement of a missile attack on the US military base in Udad, the Qatari Ministry of Interior has urgently evacuated parts of the city center's Mushleb district and Education City. Involving government office buildings, Google offices, and multiple American university campuses. The official only stated that it was a temporary preventive measure and did not disclose specific risks, causing a sudden increase in tension in the capital.Editor/Cheng Liting

• 2026.03.22 16:53
• [The Zhuzhao high-speed railway has fully entered the construction of ballastless tracks]
• On March 18, 2026, the first piece of ballastless track project for the Jiangji section of the Zhuzhao high-speed railway passed the expert group's evaluation and acceptance in Mingcheng Town, Gaoming District, Foshan City. The acceptance project is located at the Mingcheng Extra Large Bridge on the 7th section of the Zhuzhao High speed Railway Jiangji Section, with a total length of 2596.9 meters. It is one of the key control node projects of the Zhuzhao High speed Railway Jiangji Section. Editor/Cheng Liting