Medium-low speed maglev single-line filling section independent pier stud type rail bearing beam transition section structure

Abstract

The invention belongs to the technical field of medium-low speed maglev traffic engineering low-set lines and discloses a medium-low speed maglev single-line filling section independent pier stud type rail bearing beam transition section structure. The transition section structure comprises pile foundation bearing structures, reinforced concrete rail bearing beam base plates, reinforced concrete beam type structures, lower roadbed filler of a rail bearing beam, two-side backfill filler of the rail bearing beam, a bridge abutment, a trapezoid filling body and end walls, wherein one end of each reinforced concrete rail bearing beam base plate is arranged on the bridge abutment in an overlapping mode, and the end walls are arranged on the two sides of the end, arranged on the bridge abutment in the overlapping mode, of each reinforced concrete rail bearing beam base plate respectively. The transition section structure is higher in long-term stability, the high requirement for rail bearing beam structural deformation and post-construction settlement is met, and the requirement for long-term stability, durability and construction quality controllability of a foundation bed is met. By arranging the end, close to an elevated bridge, of each reinforced concrete rail bearing beam base plate on the bridge abutment in the overlapping mode, smooth transition between a maglev elevated structure and a low-set line transition section F rail is effectively achieved.

Description

technical field [0001] The invention belongs to the technical field of low-position lines of medium and low-speed maglev traffic engineering, and more particularly relates to the structure type of the transition section of the fill section of the medium and low-speed maglev single line. Background technique [0002] Medium and low-speed maglev rail transit is a new mode of transportation. There are few research results at home and abroad, and even fewer lines have been opened and operated in the world. At present, only the low-to-medium-speed maglev railway commercial operation line-Eastern Hills Line, which was built and opened in Japan in March 2005, and the medium and low-speed maglev railway commercial operation line opened in June 2014 in South Korea. China's medium and low-speed maglev transportation currently only has the National Defense University Test Line, Qingcheng Mountain Test Line, and Tangshan Test Line, but there is no official line in operation, and all of ...

AI Technical Summary

Problems solved by technology

In the low-lying line section, the foundation under the rail-bearing beam is a geotechnical structure composed of rock and soil. Affected by factors such as terrain and geological conditions, the quality is relatively difficult to control. It is prone to uneven settlement under the action of load and various natural environmental factors. It is inevitable that post-construction settlement inconsistent with the bridge abutment of the elevated structure will occur, resulting in poor post-construction settlement. The settlement difference between the low-lying line and the bridge abutment position will inevitably affect the smoothness of the F track, and may even cause the F track to be misplaced. , deformation and other problems, in severe cases, will affect the normal operation of maglev vehicles

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