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超长无缝线路具有平顺性好、线路阻力小、延长线路设备和机车车辆使用寿命的优点。但由于其存在锁定轨温与温度应力问题,在维修施工时可能引起跑道、胀轨等问题的发生。本文结合南昌路局超长无缝线路维修的实践,首先讨论了超长无缝线路铺设与锁定轨温问题,在此基础上对大型养路机械进行超长无缝线路维修施工进行了探讨。实践证明,通过合理的组织与精心的设计,采用大机维修无缝线路技术上可行,效果良好。
Long seamless lines with good ride, line resistance is small, extending the service life of line equipment and rolling stock. However, due to its existence of rail temperature and temperature stress problems, the maintenance of the construction may lead to runway, expansion rail and other issues. In this paper, Nanchang Road Bureau super long seamless line maintenance practice, first of all discussed the ultra-long seamless line laying and locking rail temperature problems, on this basis, large-scale maintenance machinery for maintenance of ultra-long seamless line carried out Discussion. Practice has proved that through reasonable organization and careful design, the use of large machine maintenance seamless line technically feasible and effective.