Curved rail bearing beam structure of low-set line in medium and low speed maglev traffic engineering

Abstract

The invention discloses a medium and low speed maglev traffic engineering low line curve rail bearing beam structure comprising a rail bearing beam, a sleeper pedestal fixed to the top of the rail bearing beam, a rail section fixed to the top of the sleeper pedestal, a reinforcement concrete base plate fixed to the interarea of the horizontal ground and guide rails arranged on two sides of the rail bearing beam; the top surface of the reinforcement concrete base plate is arranged obliquely corresponding to the level, the included angle between the top surface of the reinforcement concrete base plate and the level is alpha q, the bottom of the rail bearing beam is fixedly connected to the top of the reinforcement concrete base plate, the axle of the rail bearing beam, sleeper pedestal and rail section are perpendicular to the top surface of the reinforcement concrete base plate, the included angle between the central line of the rail section and the central line of the line is alpha, and alpha 1 = alpha. By the aid of the structure, the installation requirements for a maglev vehicle contacting with the rail can be met, the construction difficulty of soil engineering base below the rail bearing beam is not raised, and the long-term stability is not reduced.

Description

technical field [0001] The invention relates to the technical field of low-set line structure of medium and low-speed maglev traffic engineering, and specifically refers to a curved rail bearing beam structure of low-set line of 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. However, China's medium and low-speed maglev transportation currently only has the National University of Defense Technology test line, the Qingchengshan test line, and the Tangshan test line, and there is no official line that has been...

AI Technical Summary

Problems solved by technology

Since the superelevation value of the transition curve position changes linearly, to achieve this superelevation value through artificial filling on the subgrade surface not only requires high control accuracy, but also makes the construction more difficult; The lateral sliding force of the rail-bearing beam is increased, and the stability of the rail-bearing beam is reduced; at the same time, since the deflection of the rail-bearing beam is realized by the inclination of the foundation surface of the beam bottom, the slope is formed by geotechnical structures composed of rock and soil, and its long-term It is very difficult to ensure the stability. In the later stage of operation, it is prone to deformation, rail beam sinking, and insufficient super height. In severe cases, it may affect the comfort and safety of vehicle operation.

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