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新建武广铁路客运专线设计时速为350 km,正线采用无砟轨道结构,除试验段采用了板式无砟轨道外,区间正线全部采用CRTSⅠ型双块式无砟轨道,由于在国内第一次大范围采用这种新型的轨道结构,其施工、精调都是在不断探索、不断总结的过程中进行,350 km/h的行车速度对轨道的平顺性和稳定性要求很高,必须在施工和精调阶段将轨道几何状态调至最佳。分析双块式无砟轨道精度保证和精度调整的要点,提出采取的措施。
The design speed of the newly built Wuhan-Guangzhou-Guangzhou Passenger Dedicated Line is 350 km per hour and the ballastless track structure is used for the main line. Except for the plate ballastless track in the test section, the CRTSⅠ double- Sub-wide use of this new type of track structure, the construction, fine tuning are in the continuous exploration, continuous summary of the process, 350 km / h of the track on the ride and stability of the high demanding, must be in The construction and finishing stages tune the orbital geometry to the optimum. Analysis of two-block ballastless track accuracy assurance and accuracy of the points raised by the measures taken.