西渝高铁镇安隧道贯通

Core Insights - The Xiyu High-speed Railway's Zhen'an Tunnel, constructed by China Railway Seventh Group, successfully completed its breakthrough on August 27, marking a significant milestone in the project [2] - The tunnel, located in Kaizhou District of Chongqing, spans 4,458 meters and is the first over 4-kilometer tunnel to be completed in the Kangyu section of the Xiyu High-speed Railway [2] - With this completion, a total of 34 tunnels have been successfully completed in the Kangyu section, achieving a tunnel completion rate of 47% [2] Industry Context - The Xiyu High-speed Railway is a crucial part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, specifically the Jingkun and Baoyin coastal corridors [2] - The Kangyu section of the Xiyu High-speed Railway extends 478 kilometers, starting from Ankang West Station and passing through various regions including Ankang City in Shaanxi Province, and several districts in Chongqing and Sichuan Province, ultimately connecting to the Chongqing West Railway Hub [2]