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Construction method for concrete bridge deck repairing

A construction method and technology of concrete pavement, applied in bridge maintenance, road repair, bridge and other directions, can solve problems such as bridge deck lift

Active Publication Date: 2019-12-13
RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
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Problems solved by technology

[0002] For example, Chinese patent announcement number CN108330848B discloses a construction method for repairing bridge pavement. Ground-penetrating radar is used to conduct radar detection on the bridge head lap section to determine the void area caused by uneven subgrade settlement at the bridge head, and inject high polymer through the grouting hole. Empty area, effectively fill the empty part of the slab bottom, this method will easily lead to bridge deck lift

Method used

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  • Construction method for concrete bridge deck repairing

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Embodiment Construction

[0027] Before construction, it is necessary to clean the site, a concrete bridge deck repair construction method, which specifically includes the following steps:

[0028] Step 1. According to the shape, size or process requirements of the cracks in the concrete pavement, draw the repair boundary between the parts to be repaired and the normal parts along the periphery of the cracks;

[0029] A line drawn on the concrete surface where the crack is located will clearly indicate the boundary of the repair. The demarcation line needs to be clear and well-proportioned, shaped and positioned accurately. The scribed line has a certain width and can be visually distinguished. Ensure the demarcated area by measuring the length and width of the crack.

[0030] Step 2: From one end of the crack, open a "V"-shaped groove within the repair boundary; under normal circumstances, the crack at the end is relatively small, and the crack in the middle is relatively wide. The "V"-shaped groove...

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Abstract

The invention relates to a highway and bridge maintenance and repairing technology, and discloses a construction method for concrete bridge deck repairing. The method specifically comprises the following steps that: S1: marking out a repairing boundary line of a position to be repaired and a normal position along the periphery of a crack; S2: from one end of the crack, digging a "V"-shaped groovein the repairing boundary line; S3: carrying out destructive cleaning on an old concrete structure; S4: removing concrete debris; S5: moistening a region marked by the "V"-shaped groove and the periphery of the region, and then, adsorbing water which can be seen; S6: evenly stirring repairing materials and liquids used for repairing a bridge deck; S7: pouring in the repairing materials which are evenly mixed, immediately vibrating compactly, leveling, smoothly plastering the repairing materials, removing liquids secreted from the repairing materials, carrying out smooth plastering again, and carrying out compaction and pressurization polishing on the surfaces of the repairing materials; and S8: carrying out moistening and covering maintenance. The method is favorable for repairing bridge deck cracks.

Description

technical field [0001] The invention relates to a highway bridge maintenance and repair technology, in particular to a bridge deck repair construction method. Background technique [0002] For example, Chinese patent announcement number CN108330848B discloses a construction method for repairing bridge pavement. Ground-penetrating radar is used to conduct radar detection on the bridge head lap section to determine the void area caused by uneven subgrade settlement at the bridge head, and inject high polymer through the grouting hole. Empty area, effectively fill the empty part of the bottom of the slab, this method is easy to cause the bridge deck to rise. Contents of the invention [0003] The purpose of the present invention is to provide a method for repairing bridge deck cracks. [0004] In order to solve the above problems, a kind of bridge deck restoration construction method is adopted. Before construction, the site will be cleaned, which specifically includes the f...

Claims

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Application Information

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IPC IPC(8): E01C23/00E01D22/00
CPCE01C23/096E01D22/00
Inventor 彭学军刘德安陈敏汤宇王圣钟东吴俊宏吴理彪陈彪杨海龙童昌曹振兴陈彬李一萍朱胥仁罗朝华胥俊玮胡从文
Owner RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
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