近年来，随着开行5000吨重载列车和旅客列车提速，我局管内京沪线重载快速区段上．出现了大量的直线钢轨交替不均匀侧面磨耗，使直线轨道平顺性指标恶化，导致某些机车运行过程中剧烈摇晃。本文就我局的工作实践，对重载快速区段直线钢轨交替不均匀侧磨的预防与整治作一些探讨。 In recent years, with the launching of 5000-ton heavy-duty trains and passenger trains speeding up, our bureau controls the overloaded fast sections of the Beijing-Shanghai line. A large number of linear rails were alternately unevenly worn, which deteriorated the straightness index of linear rails, resulting in severe shaking of some locomotives during operation. In this paper, the work practice of our bureau, some of the prevention and remediation of the uneven side rail grinding of straight rail in heavy haul fast section.