摘要
为指导严寒地区高速铁路无砟轨道结构选型,结合严寒地区高速铁路的工程特点,分析严寒地区对无砟轨道的需求和选型原则。通过介绍我国双块式无砟轨道,CRTSⅠ型、Ⅱ型和Ⅲ型板式无砟轨道的主要特点及应用情况,从严寒地区高速铁路无砟轨道的适应性、施工性、养护维修及经济性等方面进行对比分析。结果表明:严寒地区应优先选用预制轨道板,CRTSⅠ型和Ⅲ型板式轨道具有较好的严寒适应性和耐久性,但CRTSⅢ型板式轨道的经济性更好,建议严寒地区无砟轨道应优先选用CRTSⅢ型板式无砟轨道。
In order to guide the ballastless track structure selection for high-speed railway in cold area,the requirements and selection principles of ballastless track in cold area are analyzed in thelight of the engineering characteristics of high speed railways in cold area. This paper introduces the applications and technical characteristics of double block ballastless track, CRTS Ⅰ type, CRTS Ⅲ type and CTS Ⅲtype slab track in China and analyzes the adaptability, construction, maintenance and economy of ballastless track. The results show that pre-cast slab should be fist selected for cold area. The CRTS I type and CTS Ⅲ type slab track have good adaptability and durability, but the CTSⅢ type slab track has better economic efficiency and the CTSHtype slab track should be prioritized in cold area.
出处
《铁道标准设计》
北大核心
2017年第2期5-9,共5页
Railway Standard Design
基金
国家自然科学基金项目(U1434208
U1534203)
四川省科技支撑计划(2016GZ0333)
关键词
严寒地区
无砟轨道
适应性
结构选型
高速铁路
Cold area
Ballastless track
Adaptability
Structure type selection
HSR
