钢轨接头是钢轨的薄弱环节,是工务部门日常维修的重点,接头的养护维修工作量占到轨道维修工作量的60%～70%。钢轨接头病害的发生,最根本的原因在于轨道接头存在轨道结构上的不连续和轨面的不平顺,这就导致轮轨之间产生较大的附加动力的作用。轨道结构的不连续性是钢轨接头的轨 Rail joints are the weakest link in the railways. They are the focus of day-to-day maintenance in the public works department. The maintenance workload of the joints accounts for 60% to 70% of the maintenance workload of railways. The most fundamental reason for the occurrence of rail joints is that rail joints have discontinuities in rail structure and rail surface irregularities, which leads to large additional power between wheel and rail. The discontinuity of the track structure is the rail of the rail joint