Wuhan-guangzhou Passenger Line Ballasted Track Key Construction Techniques

Railway is an important national infrastructure of our country, it's the main artery of the national economy and one of the most popular modes of transport .In order to meet the requirements of building a well-off society we decide to build a large number of passenger dedicated lines used ballastless track structure. Combining with the actuality of Wuhan-Guangzhou passenger lines, this paper researches the related literature in home and abroad, then proposes the precision control is the key factor on the process of the ballastless track construction; the survey controlled network which meets the requirements of precision measurement concrete control the premise of track laying project; the quality of the coarse adjustment, precise adjustment and concrete pour decide the quality of scene construction; Track strut screw rod regulator and Fine Tuning rail system are the key instruments for track construction; the transport of track materials and concrete are the most important factors for the efficiency of the construction . The ballastless track project must carry out the concept "zero settlement for the post-completion "for the rail building system. This Paper focuses on the key technology of ballastless track bed construction, the configuration of machinery and equipment, the craft of construction measurement control , the craft of quality control, the construction technology of turnout, the craft of position adjustment, the construction of continue wired railway, and so forth on main lines. Combining with the test section of ballastless track, this paper also proposes a series of tentative plans about the on-site construction organization, personnel and equipment configuration; logistics process design, construction schedule management, and final acceptance orbital position. The research of this paper has positive reference value in the ballastless track technology innovation.