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Construction method of bent frame for prefabricated polyurethane solidified ballast bed

A construction method and polyurethane technology, applied in the directions of roads, tracks, laying tracks, etc., can solve the problem of low efficiency of the track bed bent, and achieve the effect of reducing the construction process of the bent frame, enhancing the stability and safety, and improving the construction efficiency.

Active Publication Date: 2019-04-30
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a kind of frame-bending construction method of prefabricated polyurethane solidified ballast bed, to solve the problem of low frame-bending efficiency of the ballast bed in the prior art

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  • Construction method of bent frame for prefabricated polyurethane solidified ballast bed
  • Construction method of bent frame for prefabricated polyurethane solidified ballast bed
  • Construction method of bent frame for prefabricated polyurethane solidified ballast bed

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0036] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish simila...

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Abstract

The invention provides a construction method for a frame bent of a precast polyurethane curing bed. The construction method for the framed bent comprises the following steps that S10, precast polyurethane bed block sleeper assemblies are placed at a pre-placed position in the length direction of the bed, and mounted so as to form a track sleeper set; and S20, the track sleeper set is adjusted, after adjusting is completed, pouring is conducted on the adjusting layer, after the adjusting layer reaches to the strength, railway ballasts are paved on an offline base where the adjusted track sleeper set is located to form the bed. The construction method avoids that a polyurethane bed block capable of strengthening the stability is formed on the offline base directly through pouring, and connected with a sleeper assembly to form a polyurethane bed block sleeper assembly, and the construction efficiency of the bed is improved effectively.

Description

technical field [0001] The invention relates to the technical field of frame-bending construction technology of prefabricated polyurethane solidified ballast bed, in particular to a frame-bent construction method of prefabricated polyurethane solidified ballast bed. Background technique [0002] In the prior art, the polyurethane solidified ballast bed is constructed on site, and its pouring quality is greatly affected by the cleanliness of the ballast and the construction quality of the ballast bed. It is difficult to ensure that the ballast bed is clean and dense during on-site construction. In addition, the existing on-site pouring equipment is large in scale. To install pouring equipment such as material storage tanks, generators, air compressors, and gas storage tanks, as well as heating and drying equipment, 10 flatbed trucks are required, and locomotives and rail cars are required to pull the front and rear separately. , such a huge pouring train enters the constructi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B29/00E01B29/02
CPCE01B29/00E01B29/005E01B29/02E01B2204/06E01B2204/09E01B2204/11
Inventor 杜香刚肖俊恒郄录朝许永贤王红刘海涛赵磊徐旸
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI