中文摘要：

延长钢轨的使用寿命对降低工务养护维修成本至关重要，然而国内目前尚未见对一个使用寿命周期内钢轨轨头型面变化的跟踪观测，也缺少对钢轨型面的分析软件。通过借鉴铁路轨头轮廓制定标准和欧盟铁路制定的钢轨打磨、铣磨作业横断面验收标准，开发了钢轨型面管理软件（RPM），可用以制定合适的钢轨养护维修计划。利用钢轨型面管理软件对某重载铁路小半径曲线钢轨型面进行了从新轨上道到下道的跟踪观测，认为钢轨型面磨损的发展变化过程是“浴盆曲线”形式。通过利用钢轨型面的发展规律，认为在钢轨磨损的平稳发展期可以利用其平稳发展规律得到的最优磨损率指导预防性钢轨打磨（或铣磨），在钢轨磨损的急剧发展期开始之前应当进行钢轨型面的修复和重塑。

英文摘要：

Prolonging rail service life is critical to reduce maintenance and repair cost of railway, however there is no rail profiles data measured on a life cycle, also there is a lack of rail profiles analysis software. Drawing lessons from the railway railhead profile setting standards and acceptance criteria on the transverse of rail grinding（milling） operation, the rail profile management software （ RPM ） is developed for a suitable rail maintenance repair plan. Using the rail profile management software, rail profiles data of a sharp curve of heavy-haul railway is analyzed from the installation of new rail to its removal, concluding that the rail profile development follows a classic bathtub shape. Using the laws of rail surface development, magic wear rate could be used to guide preventive rail grinding （ or milling ） in stable period of rail wear development, and rail profiles should be repaired and remodeled before the rapid rail wear period .