Method for mounting rear sealing wall bushing and bushing fixing structure

Abstract

The invention discloses a method for mounting a rear sealing wall bushing. The method comprises the following steps: S1, hollowing out a wall, or hollowing the wall along the outer circumference of anoriginal bushing, and dismounting the original bushing to form a wall through hole; S2, processing a reinforced empty chamber which gradually contracts from outside to inside in one or two ends of the wall through hole; S3, arranging a new bushing into the wall through hole; and S4, filling the inner wall between the new bushing and the wall through hole with new micro-expansive fine aggregate concrete mortar which is at least one level higher than the original wall body material; and levelling the new concrete mortar and the wall surface. The invention also provides a bushing fixing structure. The bushing fixing structure comprises a filling section and a reinforcing section which are integrally arranged; the reinforcing section is arranged at one end or two ends of the wall through holeand gradually reduces from the outside to inside by size; the size of the reinforcing section and the area of the reinforcing section in contact with the wall through hole are more than those of a cylindrical structure, so that the combining force between the reinforcing section and the wall through hole is increased, and as a result, the bushing and the wall can be firmly combined.

Description

technical field [0001] The invention relates to the technical field of building construction repairs, and further relates to a method for installing a rear-mounted seal through-wall bushing. In addition, the present invention also relates to a sleeve reinforcement structure. Background technique [0002] In order to meet the water supply and drainage or air circulation requirements of civil air defense buildings, it is usually necessary to penetrate the casing in the wall; in order to ensure the firmness of civil air defense projects, it is necessary to reserve the position of the pipeline at the beginning of the design, and it is not allowed to dismantle the completed civil air defense buildings Then repair it to prevent the strength of the wall structure from decreasing. With the development of productivity, more and more power equipment is used, and the demand for laying lines is also increasing. The initial design volume has been difficult to meet the requirements of mo...

AI Technical Summary

Problems solved by technology

With the development of productivity, more and more power equipment is used, and the demand for laying lines is also increasing. The initial design volume has been difficult to meet the requirements of modernization, which seriously restricts the development of production.

[0003] In the traditional construction method, if a new casing is re-opened in the original wall structure, mortar must be filled in the gap between the new casing and the wall opening, and the mortar is solidified and consolidated into the wall. The binding force between the casing and the wall repaired by this method is only 75% of the original structure, which cannot reach the firmness of the original building and reduces the overall strength of the civil air defense project.

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