西南交通大学学报2026，Vol.61Issue(3)：637-655,19.DOI:10.3969/j.issn.0258-2724.20260161
高速、重载铁路轨道结构耐久性提升之关键科学与技术问题
Key Scientific and Technical Issues on Durability Enhancement of Track Structures for High-Speed and Heavy-Haul Railways
摘要
Abstract
High-speed passenger transport and heavy-haul freight transport are the main features of modern railway development.At present,China has built globally leading high-speed and heavy-haul railway networks in terms of scale,and a large number of lines have entered a critical stage of long-term high-load operation and maintenance.How to further enhance the durability of in-service track structures in complex and harsh operating environments and ensure the long-term highly safe,highly stable,and highly reliable service of high-speed and heavy-haul railway track structures has become a major strategic challenge facing the rail transit engineering field in China in the new era.In view of the structural characteristics of high-speed and heavy-haul railway track structures in China and the features of their complex operating environments,to achieve the durability enhancement of track structures,two key scientific issues were condensed(① evolution mechanism of service performance and life assessment and prediction of high-speed and heavy-haul railway track structures and② durability enhancement mechanism and multi-dimensional regulation mechanism of track structures under complex service conditions),as well as three key technical issues(① high-frequency fatigue characteristics of high-speed railway track components and collaborative regulation technology of wheel-rail system vibration,② key technologies for component strengthening and performance enhancement of heavy-haul railway track structures under high-traffic-volume conditions,and ③ efficient reinforcement,repair,and rapid retrofitting technologies for track structures).A systematic review of the state-of-the-art progress and cutting-edge advances in the research field was provided.On this basis,the engineering applications and full-scale field validation outcomes of a complete set of durability enhancement technologies,independently developed and deployed by the authors'team for high-speed and heavy-haul railway lines across typical service conditions were demonstrated.Finally,the future development prospects and critical research priorities in this field were clarified.关键词
高速铁路/重载铁路/轨道结构/耐久性/服役性能Key words
high-speed railway/heavy-haul railway/track structure/durability/service performance分类
交通工程引用本文复制引用
翟婉明,朱胜阳..高速、重载铁路轨道结构耐久性提升之关键科学与技术问题[J].西南交通大学学报,2026,61(3):637-655,19.基金项目
国家重点研发计划(2023YFB2604300) （2023YFB2604300）
国家自然科学基金项目(52388102,U2469208) （52388102,U2469208）
