Device for eliminating movement of bridge end track ballast of large-span bridge with ballast tracks

Abstract

The invention discloses a device for eliminating movement of bridge end track ballast of a large-span bridge with ballast tracks. The device comprises the track ballast arranged on a bridge girder body, wherein the railway tracks are arranged on the track ballast, ballast blocking plates are arranged on the side faces of the track ballast on the bridge girder body in the direction of the railway tracks, the ballast blocking plates and the bridge girder body are of an integrated structure, a falling preventing structure is arranged between every two adjacent ballast blocking plates, and the falling preventing structures are connected with the ballast blocking plates through hooks. According to the device for eliminating movement of the bridge end track ballast of the large-span bridge with the ballast tracks, due to the fact that the ballast blocking plates are arranged, the problem that in the prior art, track ballast in girder joints protrudes or sinks is solved, the damage phenomena that due to movement of the track ballast, steel rails are irregular in the vertical direction, and the geometry position of a steel rail expansion adjuster cannot be easily kept can be effectively prevented, the workload of maintenance is remarkably reduced, and the device has the advantages that structure machining is easy, sources are wide, the cost is low, and quality is reliable.

Description

technical field [0001] The invention relates to the technical field of railway tracks, in particular to a device for solving ballast movement at the end of a long-span bridge on a ballasted track. Background technique [0002] The ballast is a granular structure. When the ballast track is laid on the long-span bridge, in order to prevent the ballast from falling off the beam end caused by the expansion and contraction of the bridge, the measures of setting the cover plate at the beam joint are generally adopted at present. After the cover plate is set, the ballast is prone to shifting regardless of whether the rail telescopic regulator is laid at the end of the long-span bridge, causing the rail to be uneven. When no rail telescopic regulator is installed at the end of the long-span bridge, the elongation of the high-temperature beam body in summer will cause the ballast to arch at the beam joint, and the shortening of the beam body at low temperature in winter will cause th...

AI Technical Summary

Problems solved by technology

When laying the rail telescopic adjuster at the end of a long-span bridge, since the rail telescopic adjuster is the weak link of the seamless line, under the action of the expansion and contraction of the bridge beam body and the repeated load of the locomotive, large gaps will occur between the beam and the rail at the telescopic adjuster. The relative displacement of the ballast at the beam joint is easy to move, resulting in uneven ballast at the rail telescopic adjuster, and there will be defects such as vertical unevenness of the rail and difficulty in maintaining the geometric shape of the adjuster.

Therefore, the previous method of installing rail telescopic regulators at the seams of long-span bridges with ballasted tracks is unreasonable. The movement of ballast will cause vertical irregularity of the rail at the beam end, and it is difficult to maintain the geometric shape of the rail telescopic regulators. and other diseases will even be critical to the safety of the train when it is serious, and it has also caused a lot of trouble to the maintenance and repair of the public works department. Therefore, it is necessary to improve the existing technology

Images