Side floating track bed and application thereof

Abstract

The invention belongs to track beds and particularly discloses a side floating track bed. The side floating track bed comprises a floating plate, a gasket and an elastic vibration isolator, wherein the elastic vibration isolator is arranged on the lower outside of the floating plate and supported on the floating plate by the gasket. The side floating track bed is characterized in that: an ejection through hole is formed at the position, corresponding to the elastic vibration isolator, on the floating plate; the contour size of the gasket is greater than that of the ejection through hole, and an opening is formed on the gasket; and the opening of the gasket is at least partly overlapped with the projection of the ejection through hole on the top face of the elastic vibration isolator in a working state. The side floating track bed greatly reduces the used amount of the elastic vibration isolator, can greatly reduce the working amount and operation difficulty of the ejection and post overhauling of the floating track bed, and is improved in all aspects including construction period, manufacturing difficulty, manufacturing cost, maintenance cost and the like. The invention is a revolution in the technical field of the side floating track beds, and the economical and social benefit of the side floating track bed will be fully demonstrated in a very short time in the future, so that the fast popularization of the side floating track bed technology is promoted.

Description

technical field [0001] The invention belongs to the field of rail transportation, and relates to a track bed, in particular to a side-mounted floating track bed. Background technique [0002] With social development and scientific and technological progress, large and medium-sized cities pay more and more attention to the development of urban rail transit, and urban rail construction, especially underground railway construction, has also been launched one after another. In order to reduce the disturbance to the upper part of the track or the surrounding properties and residents, it is an important vibration isolation measure in the design of the subway to set up a floating slab track bed in a special section. The side-mounted floating track bed has been welcomed by the market because of its simple structure of the floating slab, good economy, and less restriction on the thickness of the floating slab. For example, the Chinese patent No. ZL2004100354411 discloses a side-moun...

AI Technical Summary

Problems solved by technology

However, when this side-mounted floating track bed is lifted and maintained, it is necessary to directly support the floating plate with a jack, in order to prevent the floating plate body from being damaged when a small area is concentrated, or the floating plate is damaged due to excessive bending. If it is destroyed, the whole floating plate must be lifted at the same time or continuously and simultaneously from a large piece at one end, and a jacking transition section must be set up. The jacking device is complicated, there are many jacking points, the operation is complicated and unsafe, and it will crack if it is not operated properly. The floating plate cannot realize one-to-one rapid lifting installation or maintenance and replacement of the spring vibration isolator like the built-in floating track bed

In most cases, the steel rails have already been fixedly laid on the floating slab. In order to prevent the deformation of the steel rails, it is usually necessary to remove the steel rails before jacking up, and reinstall and adjust the alignment after jacking up. This is very inconvenient and requires a lot of man-hours and Manpower and material resources, due to the long time consumption, will even affect the normal operation of rail transit in many cases

[0003] Therefore, although the side-mounted floating ballast bed has a simpler structure and lower cost than the built-in floating production bed, the above-mentioned defects have largely restricted the popularization and application of the side-mounted floating ballast bed. So far, there are very few applications

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