Research The Structure Selection Of CRTSⅢ Slab Track On High-speed Railway Roadbed

High-speed railway crts Ⅲ slab ballastless track is based on China’s ballastless track further innovation systems research and engineering practice,is one of China’s independent intellectual property rights of ballastless track structure。On the High-speed railway roadbed section,there two structural systems for choose :unit style and longitudinal-continued style,because of the structure of the two tracks in the economy, durability, applicability, adaptability and repair are differences,for reach the purpose of enhancing its competitiveness in the domestic and foreign High-speed railway field,in-depth study on the track structure design is necessary。The thesis is based on China’s high-speed railway roadbed section of crtsⅢ slab ballastless track experimental,research on the high-speed railway CRTSIII slab ballastless track structure parameters,for crtsⅢ slab ballastless track,the thesis Establishing the macro mechanics and dynamics mechanics of spatial analysis model. combined with high-speed test,From two angles of statics and dynamics of crtⅢ slab ballastless track unit style and longitudinal-continued style is selected.Results show that,meeting the same technical index requirements, under the action of the train load, comparing with longitudinal-connected structure,on high-speed railway subgrade section unit style structure showed obvious advantages,the unit style is recommended for the severe cold and warm area。...