钢轨的胀轨与防治维修

The Prevention and Maintenance of Rail Expanding

随着轨道线路无缝技术的发展，尤其是跨区间轨道线路无缝技术的应用，当钢轨在冬季和夏季轨温发生大的变化时，对钢轨内部的温度力的控制便成为影响轨道框架稳定的主要因素。实践证明，平时加强养护维修和巡道观察则可以有效的预防胀轨跑道的发生，同时，胀轨跑道的发生后正确及时的维修措施和方法对于防胀轨跑道的治理和恢复线路的通行具有重要的作用。

As the development of welded rails, especially the appliance of transregional rails, the main factor which influences the stability of rails is the inner temperature control when in winter and summer. Experiences tell us that frequent maintenance and inspection can prevent the expanding of rails.