China's first vertical large model for the tunnel and underground space sector, developed by the National Key Laboratory for Tunnel Boring Machines and Intelligent Operation and Maintenance under ...

The latest information from the National Intellectual Property Administration shows that China Railway 11th Bureau Group Co., Ltd. and China Railway Construction Corporation Limited have jointly ...

VIENTIANE -- Xiang Ngeun No 3 Tunnel, the last tunnel along the China-Laos Railway in Luang Prabang Province, some 210 km north of Lao capital Vientiane, was drilled through on Tuesday. So far, all ...

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