成贵高铁迎来首次“深度体检”

Core Viewpoint - The commencement of large-scale track maintenance work on the Chenggui High-speed Railway marks a significant step in ensuring the safety and efficiency of this crucial transportation link in southwestern China [1][2]. Group 1: Project Overview - The Chenggui High-speed Railway officially began operations on December 16, 2019, and is a vital part of the "Eight Vertical and Eight Horizontal" high-speed rail network, connecting Lanzhou (Xining) to Guangzhou [1]. - The railway connects major southwestern passenger hubs, Chengdu and Guiyang, facilitating rapid transit across various regions, including the Pearl River Delta and Yangtze River Delta [1]. - The railway features 183 tunnels and 468 bridges, with a bridge-tunnel ratio of 81.5%, earning it the title of "Cloud High-speed Railway" [1]. Group 2: Maintenance and Economic Impact - The maintenance work involves the use of 18 large-scale track maintenance machines to replace track ballast and solidify the lines, ensuring minimal disruption to daytime train operations [2]. - The maintenance is expected to be completed by the end of December, enhancing the safety and efficiency of the Chenggui High-speed Railway, which will further promote regional economic integration [2]. - This initiative is anticipated to provide strong support for industrial restructuring, new urbanization, and improvements in the living standards of the local population in the western region [2].