Method for reinforcing pipeline by adopting fibrous composite fabric

Abstract

The invention discloses a method for reinforcing a pipeline by adopting a fibrous composite fabric. The method comprises the following seven steps: cleaning and repairing a broken part; repairing and reinforcing pipeline cracks; polishing and washing the inner wall of the pipeline; painting resin adhesive; cutting the fibrous composite fabric and painting resin adhesive; annularly adhering the fibrous composite fabric on the inner wall of the pipeline; and painting protective adhesive or a protective layer which is prepared by mixing crushed crude pearlite or quartz sand and resin adhesive on the fibrous composite fabric. For the reinforced pipeline, the strength, anti-cracking, anti-seeping, corrosion resistance, long service life and other performances of the tube wall are improved, and the bearing capability of the pipeline is improved; a trenchless technology is adopted, so that the surrounding environment and urban traffic cannot be influenced; the construction is simple, the operation is easy, the work period can be shortened, and the construction cost can be reduced; and the section size of the pipeline after reinforcement are basically not changed, and the water flow amount of the reinforced section is not reduced.

Description

technical field [0001] The present invention relates to pipeline strengthening methods, and more particularly, the present invention relates to a method for reinforcing reinforced concrete pipelines with fiber composite material cloth. Background technique [0002] In infrastructure construction, especially in hydraulic structures, such as water diversion and drainage pipes, buried pipes in dams, water diversion pipes in power stations, suction pipes in pumping stations, inverted siphons, water culverts, etc., all use reinforced concrete circular pipes. It has good mechanical performance, small bending moment, good water flow, convenient construction, and is easy to prefabricate in batches. For high-pressure pipelines, it is more inclined to use circular cross-section reinforced concrete pipelines. However, if used for a long time, the pipeline will inevitably be damaged, such as pipeline cracks in the pipeline, causing leakage and corrosion of steel bars at the cracks of th...

AI Technical Summary

Problems solved by technology

Due to the influence of many factors such as the surrounding environment, design structure, and service life, these reinforcement and maintenance methods have many difficulties and deficiencies in implementation. The main performances are as follows: 1. The construction is difficult; 2. The cost is high; High pressure, especially for emergency projects; four, high safety risks, which may affect other surrounding pipelines and buildings; five, great impact on the surrounding environment, especially in urban construction, pipeline repair construction has a great impact on traffic and the environment

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