文章从锁定轨温、道床阻力、轨道框架钢度等方面阐述了新铺无缝线路稳定性较差的原因,并针对这些原因介绍了在初期以及日常养护维修工作中使无缝线路运行稳定应做的一些正作。 The article elaborates the reasons for the poor stability of the newly-laid seamless line in terms of the locking rail temperature, the resistance of the rail bed, the rigidity of the rail frame and so on. In the light of these reasons, the article introduces the reasons why the seamless line runs in the initial stage as well as the routine maintenance and repair work Something to do for stability.