西延高铁探“新”：解码五大亮点

Core Viewpoint - The opening of the Xi-Yan High-Speed Railway marks a significant advancement in transportation, reducing travel time between Xi'an and Yan'an to approximately one hour, showcasing innovative engineering and technology in its construction [1]. Group 1: Key Highlights of the Xi-Yan High-Speed Railway - Highlight 1: The railway features the highest design speed of 350 km/h and employs advanced 3D remote sensing technology to identify geological issues, achieving over 98% accuracy in detecting problematic geological formations [2]. - Highlight 2: A 4800-meter-long bridge was constructed using a unique hydraulic motor and detachable ball hinge technology, enhancing construction safety and reducing costs by over 300 million yuan through reusable components [5]. - Highlight 3: The Wangjiahe Grand Bridge, with a main span of 248 meters, incorporates an arch rib to control deformation, leading to multiple research projects and patents [6]. Group 2: Technological Innovations - Highlight 4: The railway boasts full 5G signal coverage, ensuring stable mobile connectivity even in tunnels, achieved through the installation of universal signal lines and signal chambers [8]. - Highlight 5: The railway's dynamic TQI (Track Quality Index) averages 1.33 mm, indicating superior smoothness, with 91% of the line consisting of bridges and tunnels, utilizing advanced construction techniques for a seamless passenger experience [10].