摘要
为预防和治理高速铁路钢轨出现的波磨现象,以某高铁钢轨为对象,跟踪检测和分析轨面波磨发展规律和不同打磨方式对波磨的治理效果。结果表明,高铁钢轨波磨典型波长为120 mm~170 mm,初始发展速率为0.03 mm/年~0.09 mm/年。与快速打磨相比,传统打磨和小机打磨容易造成轨面100 mm~300 mm的初始不平顺,进而发展成为波磨。建议高速铁路以传统打磨和快速打磨相结合的方式打磨钢轨,在打磨时,打磨深度以不小于移动波深幅值峰峰平均值+0.02 mm为宜。
In order to prevent and control the rail surface waves of high-speed railway,the development law of rail surface corrugation and the control effect of different grinding methods on corrugation are detected and analyzed by taking a high-speed railway line as an example.As a result,the typical wavelength of high-speed rail corrugation grinding is 120 mm~170 mm,and its initial development rate is about 0.03 mm/y~0.09 mm/y;compared with fast grinding,traditional and small machine grinding are easy to cause the initial irregularity of rail surface of 100 mm~300 mm,and it then develops into corrugation.It is suggested that the rail should be done by the combination of tradi⁃tional grinding and fast grinding,and the grinding depth should not be less than the average peak to peak value of moving wave depth amplitude+0.02 mm.
出处
《铁道技术监督》
2021年第2期31-37,共7页
Railway Quality Control
关键词
钢轨磨耗
波形磨耗
钢轨打磨
传统打磨
快速打磨
小机打磨
Rail Surface Abrasion
Rail Surface Wave
Rail Grinding
Traditional Grinding
Fast Grinding
Lightduty Machine Grinding
