Concrete structure through-wall pipe construction reserving structure and construction method

Abstract

The invention discloses a concrete structure through-wall pipe construction reserving structure which comprises a wall preformed hole formwork and a one-time structure wall side mold, a trapezoid foamplate is installed at the periphery of the middle section of the wall preformed hole formwork, and the two ends of the wall preformed hole formwork run through the one-time structure side mold. The invention further provides a construction structure applying the reserving structure. A grouting device can effectively avoid the defects that leakage is caused due to the fact that filling between anexisting wall bushing and a through-wall pipe is not compact enough, and processing cannot be performed after structure backfilling; by applying the reserving structure and the construction method, seamless contact between the through-wall pipe and concrete can be ensured, and leakage is avoided.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a construction reserved structure and a construction method of a concrete structure through-wall pipe. Background technique [0002] At present, the conventional construction method for the wall-piercing pipes of various pool structures in the basement, underground, and above-ground of coal-fired power plant projects is: reserve the wall-piercing casing on the side wall of the concrete structure, and then after the formal installation of the wall-piercing pipe is completed, the casing and the piercing Fill asphalt hemp or secondary grouting material between wall pipes. The disadvantages of this technique are: [0003] 1. Asphalt hemp silk is used for filling, and due to the influence of the construction environment and construction quality, there is basically leakage. [0004] 2. The underground structure is reserved for wall-piercing sleeves, and no leakage can...

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Problems solved by technology

[0004] 2. The wall casing is reserved for the underground structure, and the leakage cannot be found before the structure is backfilled. After the structure is backfilled, the leakage point is extremely difficult to deal with

[0005] 3. Secondary grouting is carried out between the wall-piercing casing and the wall-piercing pipe. The grouting material is extremely difficult to be poured densely, and leakage is very easy to occur between the secondary grouting material and the pre-embedded casing.

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