Rubber cast iron sleeper plate type vibration reduction system

Abstract

A rubber cast iron sleeper plate type vibration reduction system comprises a steel rail, a fastener, a fastener base plate, a sleeper and a ballast bed. The sleeper is a cast iron sleeper, and the fastener base plate and the cast iron sleeper are integrally formed. Rubber vibration reduction pads are symmetrically arranged on the bottom surface of the sleeper, and the sleeper is provided with a rubber sheath which wraps the bottoms of the rubber vibration reduction pads and extends upwards to wrap the side surface of the sleeper. The ballast bed is arranged below the rubber sheath; the ballastbed is composed of a self-compacting mortar cushion layer or a common reinforced concrete cushion layer; and the self-compacting mortar cushion layer or the common reinforced concrete cushion layer is filled below the rubber sheath and around the side surface of the rubber sheath. Under a condition of the same mass, a volume of the vibration mass can be greatly reduced so that a purpose of greatly reducing a height of a track structure is achieved.

Description

technical field [0001] The invention relates to the field of track engineering, in particular to a rubber cast iron sleeper plate type vibration damping system, which is suitable for the vibration damping section where the height of the track structure of the existing line is reconstructed and the newly built line is limited. Background technique [0002] The ordinary track structure is generally composed of steel rails, fasteners, sleepers and integral ballast beds in the underground section, and the sleepers and ballast beds are made of reinforced concrete. Considering the stress and construction of the concrete structure, the concrete structure needs to have a certain thickness to meet the requirements of the bearing capacity and durability of the track structure. According to the classical vibration theory, the rail vibration reduction measures are generally to reduce the rail stiffness and increase the vibration mass. The quality of rails and fasteners basically remain...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a rubber cast iron sleeper slab type vibration damping system, the purpose of which is to solve the problem that when the height of the existing damping track and the newly built damping track are limited, the track height required by the ordinary reinforced concrete track structure is too large to meet the requirements. Technical Issues of Vibration Reduction Requirements

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