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- W2359516705 abstract "Research purposes: The total length of existing railway line with speed raising to 200 km/h will be expanded to 6 003 km in China after six-round speed up.Compared with the low-speed line,200 km/h line requires more strict track maintenance,especially in China,track maintenance should meet the requirements of existing line with speed raising to 200 km/h for mixed running of 200 km/h motor train set,120 km/h freight train and double deck(container) train with axle load of 25 t.The analysis is made for the train-shaking phenomenon from the fourteen(problems) found in several experiments for six-round speed up,the rethink is made on the common problems existed in the areas of design,construction,acceptance and maintenance,and the issues necessary for being further studied are presented primarily for track maintenance in areas of inspection,operation,repeated inspection,safety,management and training,in order to make workers of track maintenance to fit in with high standard and requirements of 200 km/h for high regularity. Research conclusions:In order to meet the high requirement of 200 km/h line,the primary countermeasures are(proposed) for track maintenance,including inspection,operation,strengthening management of rail,track structure,(inspection) of long slope,large-sized machine maintenance,ballast management,solving the problems of curve,switch position and slope improperly,testing and deciding tolerance values of dynamic and static irregularity of 200 km/h line,strengthening person training,establishing all kinds of systems and regulations,guaranteeing skylight,subgrade drainage and well doing the protection work of track.Also the issues necessary for being further studied are proposed,including introduction of large-sized machines and their match,research and development of inspectional and operational tools under static status,finding out the law of preventive grinding,finding out the law of subgrade settlement in order to(guarantee) the even of transition area,improving rigidity of bridge against disturbance deformation,taking overall(measures) in the areas of design,fabricating and construction for improving the regularity of switch structure and switch area and the vibration on bridge and bridge fatigue caused by 200 km/h train." @default.
- W2359516705 created "2016-06-24" @default.
- W2359516705 creator A5016386366 @default.
- W2359516705 date "2007-01-01" @default.
- W2359516705 modified "2023-09-27" @default.
- W2359516705 title "Problems in Track Maintenance of Existing Railway Line with Speed Raising to 200 km/h and Its Countermeasures" @default.
- W2359516705 hasPublicationYear "2007" @default.
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