Installation and leveling method of prefabricated short floating slab in floating track bed

Abstract

The invention belongs to the field of track traffic, and relates to an installation and leveling method of a floating slab in a floating track bed, in particular to an installation and leveling method of a prefabricated short floating slab in the floating track bed. The installation and leveling method of the prefabricated short floating slab in the floating track bed is simple to operate. As proved by project trail laying, the prefabricated short floating slab does not need to be heightened or leveled repeatedly in the installation process, one time of heightening and leveling can be basically achieved, and the method is quite convenient and rapid to operate, overcomes the technical bottlenecks of existing operation methods, further improves construction speed, meets the requirements of construction cycles, and largely improves the technical applicability of a steel spring floating slab track bed, thereby enabling the prefabricated short floating slab to be quite wide in market application prospect.

Description

technical field [0001] The invention belongs to the field of rail transportation, and in particular relates to a method for installing and leveling a floating slab in a floating track bed, in particular to a method for installing and leveling a prefabricated short floating slab in a floating track bed. Background technique [0002] Vibration and noise are recognized as the most widely affected public hazards, and they are also a problem that needs to be solved urgently in the development of rail transit in recent years. Among the existing rail transit vibration and noise reduction technologies, the most successful practical application is the component floating technology, typically the floating ballast bed technology, which has high vibration isolation efficiency and stable working performance, which has become a consensus in the industry, such as patent No. It is a built-in floating ballast bed structure disclosed in Chinese patent ZL200410035441.1. However, the construct...

AI Technical Summary

Problems solved by technology

For the sake of safety, the vertical stiffness of a single plate end vibration isolator is usually greater than that of other single elastic vibration isolators set in the prefabricated short floating slab. Due to the influence of various errors such as the base construction error, the prefabricated short floating slab is jacked up and leveled, and the vibration isolation device at the end of the slab and the elastic vibration isolator are separately installed according to the theoretical design value in the traditional way. To set up the height-adjusting backing plate and height-adjusting gasket, it is often necessary to repeatedly adjust the height and level of the plate end vibration isolation device and the elastic vibration isolator to meet the design elevation requirements of the ballast bed, thus affecting the progress of the entire construction to a certain extent

[0003] How to solve the problem of long time-consuming installation and leveling of prefabricated short floating slabs, so as to achieve the ultimate goal of further increasing the construction speed, has become a difficult problem in the industry that restricts the further promotion and application of this technology

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