通车在望！西十高铁全线铺轨完成：穿越秦岭山脉，武汉至西安将从5小时缩至2.5小时

Core Viewpoint - The completion of the rail laying for the Xi'an to Shiyan High-Speed Railway (XSHSR) marks a significant milestone, establishing a solid foundation for the line's operational launch [1]. Group 1: Project Overview - The XSHSR spans a total length of 255.7 kilometers, with a designed speed of 350 kilometers per hour [6]. - The railway crosses the Qinling Mountains, featuring a high bridge-tunnel ratio of 95%, and includes 14 sections of steep gradients with a maximum slope of 25‰ [6]. Group 2: Construction Achievements - Since the official start of rail laying on September 8, the construction unit, China Railway Fourth Bureau, has optimized construction techniques and resource allocation, overcoming complex conditions such as dense long slopes and the longest single-hole single-line tunnel in the country, measuring 22.9 kilometers [6]. - The project achieved a record daily rail laying of 18 kilometers and an average daily progress of 8 kilometers, ensuring the successful completion of the rail laying [13]. Group 3: Strategic Importance - The XSHSR is part of the Wuhan to Xi'an High-Speed Railway (WXHSR), with the Wuhan to Shiyan High-Speed Railway (HSHSR) having commenced operations on November 29, 2019 [13]. - Once operational, the XSHSR will reduce travel time from Xi'an to Shiyan to under one hour and cut the travel time from Wuhan to Xi'an from 5 hours to approximately 2.5 hours, enhancing connectivity between the Guanzhong urban agglomeration and the Yangtze River middle reaches urban agglomeration [13].