沪昆铁路贵州段大修集中修收官，为铁路运输提供坚实安全保障

Core Points - The article highlights the successful completion of a major repair project on the Guizhou section of the Hukun Railway, which lasted nearly two months and was aimed at ensuring safe railway transport during the National Day and Mid-Autumn Festival holidays [1][2] Group 1: Project Overview - The Hukun Railway is a crucial part of China's railway network, connecting the eastern coastal economic belt with the southwestern inland, and serves over 77.6 million passengers annually [1] - The repair project involved over 20 units organized by the Chengdu Railway Bureau, deploying more than 11,000 workers and 163 teams to ensure the safety and stability of railway facilities [1][2] Group 2: Repair Details - Key repair activities included the replacement of approximately 135 kilometers of steel rails, cleaning of about 109 kilometers of track bed, replacement of 145 sets of switches, and major repairs on 40,000 sleepers [2] - The project utilized advanced techniques such as aluminum-thermic welding and "ton-K combination" methods, resulting in improved work quality and production efficiency [2]