机车车辆在运行中,轨道承受着强大的动荷载,钢轨接头又是其中最薄弱的环节。尤其是轨道电路中敷设的绝缘接头,钢轨与夹板间嵌入绝缘件,使结构受力状态更为恶化,造成绝缘接头频繁破损,影响轨道电路正常使用,威胁行车安全,随着铁路运输向高速、重载、大密度方向发展,这种故障有着增加的趋势。从现场考查来看,随之在 Rolling stock in operation, the track under strong dynamic load, rail joints is one of the weakest link. In particular, the laying of insulation track in the track, rail and splint embedded between the insulation, the structure worsened the state of force, resulting in frequent damage to the insulation joint, affecting the normal use of the track circuit, threatening traffic safety, with the railway transport to high-speed, Heavy-duty, high-density direction of development, this failure has an increasing trend. From the field test point of view, followed by