To improve the efficiency and quality of maintenance for serious rail surface defects on heavy haul rail-way,a comprehensive rail maintenance scheme combining rail milling and rail grinding is proposed.Based on the maintenance process,the severity of the rail surface delamination,rail undutatory wear,and the rail wearing are com-prehensively analyzed to determine the rail sections that need milling,make milling plan and grinding plan,and deter-mine the interval between milling and grinding operations.By comparing the maintenance effects of the two schemes,namely,only grinding and the comprehensive maintenance scheme,it can be concluded that when serious rail surface defects exist,the comprehensive maintenance scheme can reduce the times of rail grinding,improve maintenance effi-ciency,save maintenance cost,improve the wheel-rail relationship,and achieve more significant effect on suppression of the development of rail surface defects.
Heavy Haul RailwayRail MaintenanceMillingGrindingComprehensive Maintenance
万方数据
维普
