CAJ | 학술논문

介绍了国内外重载铁路发展现状和运用情况。详细论述了重载铁路在运营过程中轮轨典型的磨耗情况，主要有车轮轮缘磨耗、车轮踏面凹坑磨耗、车轮椭圆磨耗、车轮偏心磨耗、钢轨轨角侧磨、钢轨波浪形磨损以及轮轨擦伤。关于重载铁路轮轨磨损的研究主要分两个方面：轮轨的力学行为和基于轮轨行为对轮轨磨耗的机理、发展规律、主要影响因素和降磨措施。讨论了轮轨磨耗对轮轨接触载荷、车辆和轨道动力学行为、运行安全和稳定性的影响。提出了轮轨磨耗状态下重载列车脱轨安全问题的研究方法与技术路线，以期通过数值仿真计算，研究轮轨磨耗状态下重载列车脱轨机理和关键影响因素及其规律。
개소료국내외중재철로발전현상화운용정황。상세논술료중재철로재운영과정중륜궤전형적마모정황，주요유차륜륜연마모、차륜답면요갱마모、차륜타원마모、차륜편심마모、강궤궤각측마、강궤파랑형마손이급륜궤찰상。관우중재철로륜궤마손적연구주요분량개방면：륜궤적역학행위화기우륜궤행위대륜궤마모적궤리、발전규률、주요영향인소화강마조시。토론료륜궤마모대륜궤접촉재하、차량화궤도동역학행위、운행안전화은정성적영향。제출료륜궤마모상태하중재열차탈궤안전문제적연구방법여기술로선，이기통과수치방진계산，연구륜궤마모상태하중재열차탈궤궤리화관건영향인소급기규률。
The development and application of heavy haul railways in China and other countries were reviewed. Typical wheel-rail wear that occurred on heavy haul railway lines was elaborated,including the wheel flange wear,hollow wear on the wheel tread,wheel ovalization,eccentric wear of wheels, side wear at rail gauge corner,rail corrugation,wheel flats,and rail burns. Then,the wheel-rail wear of heavy haul railways was studied mainly from two aspects:the mechanical behavior of the wheel-rail interaction system;and the mechanism and development of the wheel-rail wear,influences of factors and possible counter measures. Moreover,effects of wheel-rail wear on the wheel-rail contact,the vehicle-track interaction,and the running stability and comfort of trains were discussed. Finally, research methods and technical routes were proposed to study the derailment safety problems of heavy haul trains under different worn conditions. With them,the derailment mechanism of heavy haul trains,key influential factors,and their rules under different worn conditions are expected to be worked out using numerical simulation.