A Construction Method for Cracking and Damaged Underground Concrete Pipelines by Grouting for Reinforcement and Leakage Repair

Abstract

The invention provides a construction method for underground concrete pipe cracking, damaged grouting reinforcement, and leakage repair, which comprises the following steps: cleaning the damaged part (6) or crack (7) of the underground concrete pipe (1) with pressure sprayed water, and removing the tire type The airbag (3) is set on the outside of the engineering plastic short pipe (4) and centered, and then the chain type grouting plate (2) is wrapped around the outside of the tire airbag (3); then placed inside the concrete pipe to be repaired, Align the chain grouting plate (2) with the center of the part to be repaired and fix it, then inflate the tire airbag (3); connect the external grouting pipeline, and grout; the grouting material is solidified and reaches After strength requirements, dismantle the repair facility. The invention is convenient for air circulation and personnel passage in the concrete pipeline, has good repair effect, is not only low in cost, safe and controllable, but also high in construction efficiency and simple in technology, and should have relatively wide application prospects.

Description

technical field [0001] The invention relates to the technical field of repairing engineering pipelines, in particular to a construction method for underground concrete pipelines that are cracked, damaged, grouted and reinforced, and leak-trapped. Background technique [0002] Concrete pipes refer to pipes made of concrete or reinforced concrete. They are generally buried underground and used to transport fluids such as water, oil, and gas. They are widely used in municipal engineering and industrial fields. However, during long-term use, underground concrete pipes are prone to breakage or cracking due to the corrosion of the transported fluid or the action of external forces, thereby affecting the efficiency of fluid transport, or causing fluid leakage, resulting in waste and pollution. After the underground concrete pipeline is damaged, especially when the pressure-bearing pipeline is cracked and damaged, it will cause great safety hazards and adverse effects. The conventio...

AI Technical Summary

Problems solved by technology

However, during the long-term use of underground concrete pipes, due to the corrosion of the transported fluid or the action of external forces, it is prone to damage or cracking, which affects the efficiency of fluid transport, or fluid leakage occurs, resulting in waste and pollution

After the underground concrete pipeline is damaged, especially when the pressure-bearing pipeline is cracked and damaged, it will cause great safety hazards and adverse effects. The conventional grouting repair method will not meet the required requirements due to the influence of the groundwater pressure outside the pipe. Liners, etc. Although the measures can mend leaks, they cannot achieve the effect of reinforcement, and the hidden dangers cannot be completely eliminated. Many methods will cause the adverse result of reducing the existing pipe diameter

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