尖轨是道岔转辙器的主要部分,在列车动力的作用下,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,列车通过时尖轨跳动,严重的威胁行车安全,有时一根尖轨换上不到三个月因尖轨拱腰无法使用而换掉,浪费了大量的人力、材料。因此,尖轨拱腰病害成为我段长期想解决而未能较好解决的老大难问题。 The sharp rail is the main part of the turnout switch. Under the action of 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 rail beats, which seriously threaten the driving safety , Sometimes a sharp rail put less than three months due to the apical arch armpit can not be replaced, wasting a lot of manpower and materials. Therefore, the sharp arch arcuate disease has become a long-term problem that I have not been able to solve in a long period of time.