Large-section concealed culvert repairing method

Abstract

The invention provides a large-section concealed culvert repairing method, and belongs to the technical field of concealed culvert repairing. The large-section concealed culvert repairing method comprises the following steps that the inner wall of a concealed culvert is cleaned, and a plurality of positioning holes are formed in the preset positions of each anchored plastic sheet in a penetratingway; a plurality of supporting plates are sequentially connected with the corresponding inner sides of the anchored plastic sheets in a pressed mode in the concealed culvert, a plurality of supportingrods on the supporting plates are matched with the corresponding positioning holes in an inserted mode, and the plurality of supporting rods abut against the inner wall of the concealed culvert; twoadjacent supporting plates are connected and fixed, so that the corresponding anchored plastic sheet is unfolded along the inner wall of the concealed culvert; the two side edges of every two adjacentanchored plastic sheets are connected and fixed in the length direction of the concealed culvert; concrete is poured between the anchored plastic sheets and the inner wall of the concealed culvert, and after the concrete is formed and solidified, the supporting plates are disassembled; and the inner side surfaces of the anchored plastic sheets are coated with anti-corrosive material, and the positioning holes are plugged through the anti-corrosive material. According to the large-section concealed culvert repairing method, the formed supporting platform can provide sufficient operation space,and the whole construction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of culvert restoration, and more specifically relates to a large-section culvert repair method. Background technique [0002] Long-term use of underground channels may cause partial collapse and damage. At this time, in order to ensure the normal operation of underground channels, it is necessary to repair the damaged parts of the channel. By adopting the quick grid pad with anchors for repair, since the concrete needs to be poured between the quick grid pad and the hidden culvert, it is necessary to support the formwork when the concrete is poured and solidified, which results in a smaller operating space in the entire hidden culvert. resulting in low construction efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a large-section hidden culvert repair method, aiming at solving the problem that the operating space in the hidden culvert becomes smaller, result...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a large-section hidden culvert repair method, aiming to solve the problem that the operating space in the hidden culvert becomes smaller, resulting in lower construction efficiency

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