渝昆高铁最长隧道贯通
Xin Lang Cai Jing·2025-12-10 04:37

Core Viewpoint - The successful completion of the Yiliang Tunnel marks a significant milestone for the Yukun High-Speed Railway, laying a solid foundation for the entire line's construction and operation [1] Group 1: Project Details - The Yiliang Tunnel, the longest tunnel of the Yukun High-Speed Railway, is located in Zhaotong City, Yunnan Province, with a total length of 24.8 kilometers [1] - The construction of the tunnel is managed by China Railway Erju, China Railway Construction Bridge Bureau, and China Railway Fifth Bureau, highlighting the collaboration among major construction firms [1] Group 2: Importance of the Project - The Yiliang Tunnel is considered a critical and challenging control project for the Yukun High-Speed Railway, emphasizing its significance in the overall infrastructure development [1]