Rail beam ice and snow melting assembly, PC rail beam and laying method of PC rail beam

Abstract

The invention discloses a PC rail beam which comprises a rail beam ice and snow melting assembly. The rail beam ice and snow melting assembly comprises a surface layer heat conduction plate, heat conduction pipes which are located at the bottom of the surface layer heat conduction plate and fixedly connected with the surface layer heat conduction plate, heating cables laid in the heat conduction pipes, and a plurality of anchor bars which are fixedly arranged at the bottom of the surface layer heat conduction plate and used for fixedly connecting the surface layer heat conduction plate and beam body concrete. By means of the rail beam ice and snow melting assembly, ice and snow which freeze on the PC rail beam can be rapidly and efficiently processed, and therefore the normal running of trains can be ensured, and obvious social and economical benefits are achieved. In addition, the invention further discloses the rail beam ice and snow melting assembly forming the PC rail beam and a laying method of the PC rail beam.

Description

technical field [0001] The invention relates to the technical field of PC track beam melting ice and snow, in particular to a track beam melting ice and snow component, a PC track beam and a laying method thereof. Background technique [0002] At present, when straddle-seat rail transit operates in cold regions in winter, it often causes train suspension or delay due to ice and snow freezing on the track girders. Friction between the rubber wheels and the track, which prevents control of the train. In order to avoid this problem, there are related solutions for melting ice and snow applied to straddle rail transit in the prior art, such as equipping snow brushes on vehicles, spraying snow melting agents and manual snow removal. [0003] However, there are many defects in these schemes: the method of equipping snow brushes on the vehicle is more suitable for the situation where the snow is thin and not frozen, but the removal effect and efficiency for thicker snow and surfac...

AI Technical Summary

Problems solved by technology

[0003] However, there are many defects in these schemes: the method of equipping snow brushes on the vehicle is more suitable for the situation where the snow is thin and not frozen, but the removal effect and efficiency for thicker snow and surface ice are very low; The method of spraying deicing agent can effectively melt ice and snow, but the deicing agent is generally highly corrosive, which will have a certain impact on the durability of the beam concrete and cause damage to the surrounding environment, which is not conducive to environmental protection; Although the snow removal method is relatively simple, the position of the track beam is high, and the personnel are more dangerous during the snow removal process, and it takes a certain amount of time to clear the snow, which will still cause delays to the train operation

PC track beams also have characteristics different from other bridges, such as: large heating area, snow removal on the bottom, top and sides of the beam, and internal heating of the beam body will generate greater tensile stress on the concrete of the beam body, reducing its safety performance; The cross-section of the body is small, the pipeline is not easy to arrange, and it is easy to cause damage to the structure of the beam body; the line is long, the bridge deck heating and deicing technology currently applied to highway bridges is only applicable to partial bridge decks, and the track beam needs to melt ice and snow along the entire line, which needs to be overcome. The problem of long-distance energy transmission, etc.

It can be seen that none of the existing technologies can well solve the operation problem of PC track beams in winter snowfall weather

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