黄百铁路首座超千米隧道顺利贯通

Group 1 - The Huangbai Railway, approximately 315 kilometers long with a design speed of 160 km/h, is a significant project in the Western Land-Sea New Corridor [4] - The project is expected to be completed and operational by 2028, providing a convenient passage from northern Guizhou to the Beibu Gulf region in Guangxi, which is crucial for promoting coordinated economic and social development in the region [4] - As of now, 11 out of 33 newly constructed tunnels in the Guangxi section of the Huangbai Railway have been successfully completed, representing about 30% of the total [6]