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Concrete construction method for CRTSI double-block ballastless track roadbed slab

A ballastless track and construction method technology, applied in the directions of track, track laying, track maintenance, etc., can solve the problems of difficult to guarantee the quality of the concrete of the track bed slab and the large difference in the construction environment, so as to avoid the quality of the plastering surface and improve the construction efficiency. detailed effect

Pending Publication Date: 2022-02-01
CHINA RAILWAY 12TH BUREAU GRP +1
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Problems solved by technology

Road bed slab concrete is subject to multiple constraints, and its performance is significantly affected by the quality of raw materials, mix ratio parameters, construction environment temperature and construction process control. Due to the large differences in construction environments, especially in strong winds and droughts, large temperature differences, strong sandstorms, and strong sunshine, etc. Under harsh natural climate conditions, it is difficult to guarantee the quality of track bed slab concrete

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  • Concrete construction method for CRTSI double-block ballastless track roadbed slab

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Embodiment Construction

[0028] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] like figure 1 As shown, the construction method of CRTS I double-block ballastless track bed slab concrete includes the following steps:

[0030] S1. Raw material storage management;

[0031] S2. Detection of aggregate moisture content;

[0032] S3. Concrete mix ratio process parameter input: The mix ratio should be designed according to the structural characteristics, construction conditions and environmental conditions of the ballast bed slab. Based on the comprehensive work performance, mechanical properties, shrinkage p...

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Abstract

The invention relates to the technical field of concrete construction, and particularly relates to a concrete construction method for a CRTSI double-block ballastless track roadbed slab. The method comprises the following steps: S1, carrying out raw material storage management; S2, detecting the water content of the aggregate; S3, inputting concrete mix proportion process parameters; S4, binding roadbed slab reinforcing steel bars and mounting a template; S5, carrying out concrete stirring; S6, detecting concrete performance, and determining whether the concrete performance is qualified or not; S7, wetting a supporting layer and a track block, and pouring concrete; S8, plastering and calendaring for multiple times; S9, spraying a maintenance liquid, and loosening the fishplates and the fasteners; and S10, removing the mold, spraying a curing agent on the two side edges of the roadbed slab concrete, and performing covering curing. The construction method is detailed in step, the quality of concrete construction is effectively guaranteed, and meanwhile the construction efficiency is improved. The method is mainly applied to ballastless track roadbed slab concrete construction.

Description

technical field [0001] The invention relates to the technical field of concrete construction, and more specifically relates to a concrete construction method for a CRTS I double-block ballastless track bed slab. Background technique [0002] The concrete of the track bed slab is an important part of the CRTS Ⅰ double-block ballastless track structure, and its performance has a great influence on the smoothness and durability of the track structure. Road bed slab concrete is subject to multiple constraints, and its performance is significantly affected by the quality of raw materials, mix ratio parameters, construction environment temperature and construction process control. Due to the large differences in construction environments, especially in strong winds and droughts, large temperature differences, strong sandstorms, and strong sunshine, etc. Under harsh natural climate conditions, the quality of the concrete of the track bed slab is difficult to guarantee. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B1/00E01B29/00
CPCE01B1/002E01B29/005E01B2204/09
Inventor 王涛王俊才胡素娥田国锐王晓霞
Owner CHINA RAILWAY 12TH BUREAU GRP
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