trapezoidal sleeper

Abstract

The invention relates to a novel sleeper system in the field of railway tracks. The sleeper system comprises a longitudinal beam type sleeper and an elastic vibration attenuation rail system. The longitudinal beam type sleeper is formed by cascading longitudinal beam type sleeper units. Longitudinal beams of the longitudinal beam type sleeper are transversely and fixedly connected together through connecting pieces; the ends of the opposite longitudinal beams of the adjacent longitudinal beam type sleeper units are connected through sleeper connecting pieces. The elastic vibration attenuation rail system comprises a support; the longitudinal beam type sleeper is arranged on the support; a vibration attenuation facility is arranged between the bottom of the longitudinal beam type sleeper and the support; according to the longitudinal type sleeper, the bending rigidity of the rail is increased, and rail deformation caused by repeated loads is reduced; due to the fact that the longitudinal beams increase transverse resistance and irregularity of a perpendicular rail is reduced, the maintenance workloads are reduced. Due to the fact that connection of the continuous longitudinal beams is kept in the longitudinal direction, the phenomena that the rail settling volume of the ends of the longitudinal beams is too large, and consequently the longitudinal beams are prone to being damaged are avoided. Rail pads are continuously arranged, and therefore foundation vibration, rolling noise and rail wavy deformation are reduced.

Description

technical field

[0001] The invention relates to the field of railway tracks, in particular to a sleeper and an elastic damping track system in the field of railway tracks. Background technique

[0002] Railway tracks generally include ballast beds (ballasted or ballastless), sleepers and rails. The ballast bed is formed on the roadbed or bridge, the sleeper is laid on the ballast bed, and the steel rail is installed on the sleeper. But no matter what kind of sleepers, most of the railways currently adopt horizontal sleepers, that is, sleepers are laid along the transverse direction of railways or rails. There are many disadvantages and deficiencies in this kind of transverse sleeper: the transverse sleeper is laid discretely on the track bed, so it is not conducive to the distribution of the load from the steel rail. When the train passes, affected by the impact wheel weight, the impact load on the sleeper is very large, which is easy to cause damage to the ballast bed bel...

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