中国铁道科学2026，Vol.47Issue(4)：1-25,25.DOI:10.3969/j.issn.1001-4632.2026.04.01
时速400km高速铁路线路基础设施关键技术研究综述
Review on key technologies of railway infrastructure for 400 km·h-1 high-speed railway
摘要
Abstract
Addressing the core technical challenges faced by railway infrastructure for 400 km·h-1 high-speed railways,such as intensified wheel-rail dynamic impact,prominent multi-source noise issues,and aggravated tunnel aerodynamic effects,a systematic review is conducted on key scientific problems,core technologies and equipment,evaluation indicators,and control methods.This paper comprehensively analyzes the domestic and international research progress and technical status of railway infrastructure for 400 km·h-1 high-speed railways.Building upon the existing complete technology system for 350 km·h-1 high-speed railway infrastructure,a multi-scale spatial refined simulation model for railway infrastructure was systematically developed.This led to the establishment of a mechanical behavior characterization mechanism and a key design parameter system for 400 km·h-1 high-speed railway infrastructure.A suite of key technologies and core equipment were developed,including a fastening system,a turnout structure,a novel subgrade structure with a reinforced bed surface layer,a novel structural configuration of pile-slab transition segment,as well as a 40 m simply-supported girder with an ultra-high prestressing system and a 32 m simply-supported girder with a 2.8 m girder height adapted for 400 km·h-1 operation.Evaluation indicators and management standards for track geometric regularity of 400 km·h-1 high-speed railways were proposed,and a technical standard system for the infrastructure was constructed.The results show that the proposed key technologies for 400 km·h-1 high-speed railway infrastructure effectively resolve the two types of technical challenges,namely,power matching and aerodynamic effects,resulting from speed enhancement,achieving a 5%improvement in overall track dynamic performance,over 10%improvement in vibration and noise reduction,and over 15%improvement in tunnel aerodynamic effect mitigation,thus strongly supporting the sustainable development of China's high-speed railway technology.关键词
高速铁路/时速400km/线路基础设施/关键技术/综述Key words
High-speed railway/400 km·h-1/Railway infrastructure/Key technology/Review分类
交通工程引用本文复制引用
王同军,江成,王峰,王树国..时速400km高速铁路线路基础设施关键技术研究综述[J].中国铁道科学,2026,47(4):1-25,25.基金项目
国家重点研发计划项目(2022YFB2603400) （2022YFB2603400）
