Domestic Research and Application Progress of Polyurethane Synthetic Sleepers
Synthetic sleepers of fiber-reinforced polyurethane foam were initially applied in urban railway traffic to adapt to the linear induction motor system,and they have been developed into national and heavy-haul railways in recent years.Synthetic sleepers have been widely researched and applied nationwide owing to their excellent overall performance.The technological development history and standards of synthetic sleepers in China were analyzed and compared with foreign and ISO standards.In addition,the application progress,application problems,and solutions were investigated.Suggestions for the development and prospects of polyurethane synthetic sleepers in China were proposed by combining the requirements of domestic rail traffic with the application problems of synthetic sleepers.
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