尖轨是道岔转辙器的主要部分,在列车动力作用下,由于养护维修不当和尖轨本身结构等缺陷,中部产生不同程度的拱起。当列车通过时,尖轨跳动,严重地威胁行车安全。有时一根新尖轨换上不到三个月,便产生尖轨拱腰无法使用而不得不更换,因而浪费了大量的劳动和材料。尖轨拱腰病害,在我段长期以来成为老大难问题。我们通过三个月的时间,将管 The sharp rail is the main part of the turnout switch. In the train power, due to the defects of maintenance and improper maintenance and the structure of the sharp rail itself, the central part has different degrees of arching. When the train passes, the sharp track jumps, seriously threaten the driving safety. Sometimes, if a new sharp rail is replaced for less than three months, it will result in unusable replacement of the pointed rail arch and waist, thus wasting a lot of labor and materials. Arch rail arch disease, in my paragraph has long been a chronic problem. We passed the three-month time, will tube