西延高铁全线拉通试验顺利完成

Core Points - The successful completion of the full-line test for the Xi'an to Yan'an high-speed railway marks a significant milestone, indicating that the joint debugging and testing work is in its final stages, laying a solid foundation for subsequent trial operations and official opening [1][2] Group 1: Testing and Validation - The full-line test is a crucial dynamic verification phase in railway construction, integrating various individual tests to ensure compliance with design standards across multiple systems such as tracks, power supply, and contact networks [2] - The Xi'an Railway Bureau employed a dual-vehicle collaborative model during the test, utilizing a comprehensive detection train and a confirmation train to conduct systematic testing along the line [2] - The comprehensive detection train achieved a stable operation at the designed speed of 350 km/h, successfully collecting key data on track geometry, contact network, and signal parameters [2] Group 2: Progress and Collaboration - The overall progress of the joint debugging and testing has reached 45%, with nearly 100 test trains operated since the initiation of the process, collecting tens of thousands of data points [2][3] - A command center was established by the Xi'an Railway Bureau in collaboration with over 20 organizations to ensure efficient progress, with clear roles and daily meetings to manage issues effectively [3] Group 3: Communication Systems - The Xi'an communication section is simultaneously testing the communication systems along the line, achieving a 74% coverage rate for the public network during maximum speed testing [5] - Innovative techniques were employed to ensure stable signal transmission in complex terrains, including the use of combination towers and specialized cable coverage in long tunnels [5] Group 4: Strategic Importance - The Xi'an to Yan'an high-speed railway is a key project in the "14th Five-Year Plan," with a total length of 299.8 km and a design speed of 350 km/h, significantly reducing travel time from 2.5 hours to approximately 1 hour [6] - This railway is an important part of the national high-speed railway network and will enhance the regional advantages of Shaanxi Province, contributing to the revitalization of rural areas in revolutionary old districts [6]