Overhead section section structure based on four-rail backflow city region B-type vehicle clearance design

Abstract

The invention discloses an elevated interval section structure based on a four-rail backflow city area B-type vehicle clearance design, a line is arranged on an elevated beam, and sound barriers are arranged at the positions with preset distances along the two sides of the center line of the line; a vertical column is arranged on the right side of the driving direction at a preset distance from the middle line of the line; a driving signal lamp is arranged on the inner side of the right column in the driving direction at a preset distance from the line center line to indicate train driving; a weak current cable is laid within the preset distance range of the inner side of the right sound barrier in the driving direction; leaky coaxial cables are laid above and below the light-current cable on the right side in the driving direction; the track structure of the urban B-type vehicle is symmetrically distributed along the center line of a line and comprises a steel rail, a sleeper and a railway ballast from top to bottom, and a fourth rail is arranged on the surface of the railway ballast on the right side in the running direction. According to the section structure of the elevated section, the B-type train can be prevented from interfering with surrounding buildings and equipment when running in the elevated section, and safe running of the train is guaranteed.

Description

technical field [0001] The invention belongs to the field of urban railway boundary, and in particular relates to an elevated section structure based on the boundary design of B-type trains in the four-rail return urban area. Background technique [0002] As a large-capacity, punctual, fast, and efficient public transport tool, urban rail transit is developing rapidly and is currently the most popular form of public transport. [0003] However, the conventional rail transit power supply method of running rail backflow will inevitably generate stray currents, which will corrode various metal pipelines along the line. [0004] In order to reduce the generation of stray current, urban rail can adopt a four-rail backflow power supply method. This method supplies power to rail trains through catenary, and uses the fourth rail beside the track to return power to the substation, avoiding The current flows back through the running rails, thereby effectively suppressing stray curren...

AI Technical Summary

Problems solved by technology

[0005] At present, the four-track reflow technology has been used in some models, but this technology has not been used in the B-type cars in the city area.

Images