Research on the Fastening Systems for Slab Tracks for High-speed Railway

摘要

The technical, requirements and key technologies of fastening systems for slab tracks for highspeed railway are proposed in this paper. The technical features of fastening systems for slab tracks and turnouts fastenings which are developed by China are introduced. All of them are analyzed including the form of clips, clips installation, connection with supporting structure, the lateral force receiving and transfer, elastic properties and rail position adjustment. The measures for uniformization of track stiffness in turnout area and determination for relative stiffness of fastening system are researched. The application on Wuhan-Guangzhou, Zhengzhou-Xi'an, Shanghai-Nanjing and Shanghai-Hangzhou high-speed railway shows that the fastening systems for slab tracks and turnouts developed by China can meet the requirements of high-speed railway.