重载铁路钢轨打磨实验数据对比及分析

On burnishing experiment data comparison of heavy-loaded railway rails and analysis

对重载铁路设立新轨和既有钢轨打磨试验段和对比段,分析了预打磨和维护性打磨对消除或降低钢轨疲劳伤损影响的作用,通过对打磨试验段和对比段持续跟踪观测,对不同通过总重阶段的钢轨轨头廓形、钢轨工作面硬度以及钢轨工作面使用和伤损状况进行记录,并根据现场采集的实验数据,结合重载铁路钢轨疲劳伤损特征,提出了以打磨钢轨轨距角为重点的打磨策略。

The paper analyzes the influence of pre-burnishing and maintenance burnishing on reducing or relieving fatigue damages on steel rails from the burnishing test and comparative sections of existing and new rails along heavy-loading railways, records on railhead silhouette, strength of steel rail working face, and working face＇ s uses and damages, and points out the burnishing strategies focusing on the burnishing at rail track distance by combining with the fatigue damage features of rails along heavy-loaded railways.