Core Viewpoint - The completion of the track laying for the Xi'an to Shiyan high-speed railway marks a significant milestone, paving the way for the line's operational launch and enhancing regional connectivity [1] Group 1: Project Overview - The Xi'an to Shiyan high-speed railway, with a total length of 255.7 kilometers and a design speed of 350 kilometers per hour, connects Xi'an East Station to the existing Shiyan East Station [1] - The railway features a high bridge-tunnel ratio of 95%, traversing the Qinling Mountains, which presents unique engineering challenges [1] Group 2: Construction Achievements - The track laying officially commenced on September 8, and the construction team utilized innovative heavy-duty track-laying equipment in conjunction with high-power crawler tractors to enhance construction efficiency [1] - Following the completion of track laying, the construction unit will proceed with the "four electrical" installations, static acceptance tests, and joint debugging and testing to prepare for the line's opening [1] Group 3: Economic Impact - Once operational, the railway will reduce travel time from Xi'an to Shiyan to within one hour and shorten the travel time from Wuhan to Xi'an to approximately 2.5 hours, significantly contributing to the economic and social development of the regions along the route [1]

Core Viewpoint - The successful completion of the Hujiayuan Tunnel on July 30 marks a significant milestone for the Xi'an to Shiyan high-speed railway, with all 42 tunnels now completed, laying a solid foundation for the construction of ballastless track and the eventual operation of the railway [1] Group 1 - The Hujiayuan Tunnel is a key control project for the Xi'an to Shiyan high-speed railway [1] - The completion of all 42 tunnels is crucial for the overall progress of the railway project [1] - The successful tunneling supports the future construction and operation of the Xi'an to Shiyan high-speed railway [1]