The trenchless repair method of municipal drainage pipes is an effective way to repair pipe problems without digging the ground. This method can reduce interference with traffic, the environment and the community and improve repair efficiency. The following are some common trenchless repair methods for municipal drainage pipes:
Spray lining technology
Use special coating materials, spray them onto the inner surface of the pipe to form a protective layer, repair damage and corrosion. This can effectively extend the service life of the pipeline without the need for excavation.
Wrap-around repair
Polymer or fiberglass tape is wrapped around and fixed inside the pipe to reinforce and repair the pipe. This method is suitable for localized damage and reinforcement.
Expansion Leakage
Inject the expansion material into the pipe to fill cracks and defects and form a protective layer. The expanded material can seal the leak.
Jet repair
A high-pressure jet sprays the repair material into the pipe interior, creating a protective layer. This method is suitable for small to medium damage.
Spray paint repair
Spray special paint materials to form a hard protective layer to repair wear and corrosion.
Light-curing repair
Use ultraviolet light to cure the repair material and quickly form a protective layer. This method is fast and suitable for small-scale repairs.
Plug and seal repair
Place special plugging materials on the damaged part to seal the leaking point. This method is suitable for local leaking problems.
Nanomaterial repair
Use nanoparticles to fill tiny defects and cracks, strengthening the pipe. This method is suitable for small-scale damage.
Kesimpulan
New technologies are constantly being updated and optimized. As construction quality improves, construction requirements are becoming lower and lower. Therefore, when choosing a municipal pipeline construction method, a comprehensive comparison should be made from all aspects to select technical processes that maximize economic benefits, minimize environmental pollution, and facilitate construction requirements.
