目前,兰州铁路局线路上钢轨核伤约占所有重伤钢轨的51.2%。核伤轨对行车安全构成了严重威胁,传统的处理核伤轨的方法既费时又费力。本文根据核伤轨顺钢轨方向非常短(只有6-7 mm)的特点,大胆设想将核伤轨原位切除后,利用铝热焊缝较核伤(23-27mm)长,存在原位焊复的可能性。利用本方法可降低工人劳动强度,节省紧张的天窗点30分钟左右,每年为各工务段降低成本约62万元。 At present, rail line injuries on the Lanzhou Railway Administration account for 51.2% of all severely injured rails. The nuclear rail injury poses a serious threat to traffic safety. The traditional method of handling nuclear rail injuries is both time-consuming and labor-intensive. In this paper, according to the characteristics of nuclear rail track along the rail is very short (only 6-7 mm), the bold assumption that the nuclear injury rail in situ after resection, the use of aluminum heat weld than the nuclear injury (23-27mm) long, there is in situ welding Complex possibilities. The method can reduce the labor intensity of worker, save the stress on the skylight for about 30 minutes, and reduce the cost for each public section by about 620000 yuan.