Passenger Transportation Special Line Cross Sector Seamless Line Essential Engineering Research

Cross sector seamless line, namely rail bar, rail bar and rail switch direct welding; the vertical force and displacement are direct transmitted between rail bars. It is called as the ultra long seamless line (Super Long Continuous Welded Rail track) in TB/T1352《Railroad Line Terminology》. As the cross sector seamless line application, maximum limit reduced the railroad track rail joint, thus the security; the steady movement conditions are provided for the high-speed train. The welded long rail track lays down may induce is three kind of works methods , namely, single pillow continual shop tries, the single pillow intermittence shop tries, and the long axle row of shop to try.Through to track essential aspect the and so on theory of mechanics, analysis method and high-speed railroad development condition domestic and foreign research and the present situation review, had the research results in the model in the foundation below, the essential contents as follows.1. The passenger transportation special lines cross sector seamless line fixed axle warm design, the bridge the seamless line design, the rail expand and contract the regulator, the glued joint insulated rail joint design are dissected. Simultaneously it is proposed by the our country high-speed railroad cross sector seamless line designs request.2. The construction technology of the passenger transportation special lines cross sector seamless line are researched. Conducts the combined our country the geography situation and the weather condition , our country northeast repairs the passenger transportation special line the job practice are proposed. In order to construct the department to provide the reference.3. A brief introduction is carried on the passenger transportation special lines seamless line construction machinery makes the brief.Through above several aspects analysis and the discussion, some significant conclusion are given, It can be referenced by the protection and management departments , The design departments and the construction departments .And it can provided the basis for the our country high-speed railroad cross sector seamless line a design and construction.