成渝中线高铁建设全面加速 成都段天然气输气管道工程迁改完工

Core Viewpoint - The successful completion of the gas pipeline relocation project marks a significant milestone in the construction of the Chengyu Middle Line High-Speed Railway, facilitating the acceleration of the overall project [1][4]. Group 1: Project Details - The gas pipeline relocation project spans approximately 4.6 kilometers and involves complex intersections with various transportation facilities, including roads, railways, and greenways, with a total of 48 crossings [3]. - The project took 18 months from planning to completion, highlighting the technical challenges and the importance of energy security in conjunction with transportation infrastructure development [3][4]. Group 2: Strategic Importance - The D720 and D630 gas pipelines are critical for Sichuan Province, supplying about one-third of the natural gas for residential and commercial use in Chengdu, underscoring their strategic energy role [3]. - The relocation is considered a key task in the construction of the Chengyu Middle Line High-Speed Railway, recognized as one of the most challenging gas pipeline relocations in the region [4]. Group 3: Future Implications - The Chengyu Middle Line High-Speed Railway is a core component of the national high-speed rail network, designed for a speed of 350 km/h, and is expected to be completed by the end of 2027, significantly enhancing connectivity between Chengdu and Chongqing [7].