Research On Construction Technique For Double Block Ballastless Track

Double-block ballastless track is a new passenger rail structure applicable to the PDL. It is characterized by high ride comfort, great stability, good uniformity stiffness, structural durability and low maintenance durable. Firstly, the state of arts and the development history of the double-block ballastless track (in many countries) is reviewed in the paper, and then an appropriate description of every kinds of double block ballastless track are given based on the overall domestic flexible bed Road Construction technique. Combined with some specific application of ballastless track technique in sections of Wuhan-Guangzhou railway, a number of Construction Technology what suitable to the China conditions were presented by a well data collection and absorption for the double block ballastless track construction techniques.This paper specific combined with the construction site of Wuhan-Guangzhou Passenger Line, give some simple discussion to specific application of the double block ballastless track. Specially, it also gives the corresponding narrative of the various pieces of double-track the slag without structural features, construction site, Construction process and quality control and attention to the matter of construction. Meanwhile the construction survey, positioning control methods and measures were discussed, take the Wuhan-Guangzhou Railway for example introduction various sections Construction of process and technology requirements of the double block ballastless track to further right of the railway slag a certain refer.