Intra-segment limit structure for bearing-trail beams at double-line section of middle-low speed magnetic levitation traffic engineering low-laying line

Abstract

The invention discloses an intra-segment limit structure for bearing-trail beams at a double-line section of a middle-low speed magnetic levitation traffic engineering low-laying line. The limit structure comprises roadbed stuffing below the bearing-trail beams, a bedding layer under the bearing-trail beams, two adjacent bearing-trail beams, vertical dislocation-prevention lapping plates, transverse dislocation-prevention bosses and bearing-trail beam backfill stuffing. The vertical dislocation-prevention lapping plates are fixedly arranged on the roadbed stuffing below the bearing-trail beams and the lower ends of the vertical dislocation-prevention lapping plates extend into the roadbed stuffing below the bearing-trail beams. According to the invention, the dislocation-prevention reinforced concrete lapping plates are arranged between the segment positions of the bearing-trail beams, the bearing-trail beams are arranged on the same reinforced concrete dislocation-prevention bedplate with certain rigidity, and thus the problem of the uneven rail surface as the foundation below the bearing-trail beams has differential settlements is effectively avoided.

Description

technical field [0001] The invention belongs to the field of medium and low-speed maglev low-set lines, and more specifically relates to an internode limiting structure of a rail-bearing beam in a double-track section of a low-rise line of a medium-low speed maglev traffic engineering. Background technique [0002] Medium and low-speed maglev rail transit is a new type of transportation. At present, there are few research results at home and abroad, and there are even fewer lines in operation around the world. At present, there are only the commercial operation line of the medium and low speed maglev railway in Japan in March 2005-Eastern Hills Line and the commercial operation line of the medium and low speed maglev railway in South Korea in June 2014. At present, China's medium and low-speed maglev transportation only has the National University of Defense Technology test line, the Qingchengshan test line, and the Tangshan test line, but there are no official lines in oper...

AI Technical Summary

Problems solved by technology

[0004] In order to prevent excessive temperature stress and uneven settlement, the traditional rail-bearing beam structure generally adopts expansion joints of 10-30m per section. Due to the influence of various factors, the quality is relatively difficult to control, so it is easy to produce uneven settlement under the action of load and various natural and various natural factors. It is inevitable that there will be inconsistent post-construction settlement between adjacent rail bearing beams, resulting in the occurrence of Wrong platform, which will affect the smoothness of F track, and may even cause problems such as wrong platform and deformation of F track, which will affect the normal operation of maglev vehicles in severe cases

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