Abstract：Research purposes： With the construction of high - speed railway in recent years，the technology of design and construction for ballastless track is relatively mature. But the design of ballastless track can be optimized combined with the construction of site. Based on this，this paper introduced the design survey of ballastless track structure for Chengdu - Mianyang - Lesiian Railway，and introduced design details for the layout of slab，the design of track structure on bridge and turnout structure and so on. And combined with the construction of site，this paper put forward relevant suggestions，which provide the references for design and construction for other ballastless track of high - speed railway. Research conclusions:(1) The selection of fasteners on bridge based on sufficient argument is correct，the design of baiastless track for beam ends and turnout is reasonable，and the measure to control the fastener space across the beam joint is feasible. (2) During the design of ballastless track，we should pay attention to the integrity and cohesion of the track system engineering，more to the details and interfaces and to strengthen the design of waterproof track. (3) The ballasted track construction should control details in order to reflect the design concept， and ensure the construction quality of the track structure from the control of the raw material，process and quality. (4) The research results can be applied in the design of ballastless track for high speed railway.
2016, Vol. 33 
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