How to deal with subway water leakage

Grouting technology for deep cracks: grouting reinforcement for deep cracks inside the structure, water seepage to stop leakage and restore structural integrity. It is also a mature technology that our company has repeatedly applied to mass concrete structures such as dams and floors of high-rise buildings. At present, the deepest crack in grouting treatment has reached 2m. Random sampling core drilling test shows that the compactness and strength of concrete structure after grouting meet the requirements. The patented formula is used for back pressure plugging water pipes, which is useful for back pressure plugging. High-tech waterproof plugging technology is adopted, and polymer waterproof material is injected into the mixed slurry for back pressure, which rapidly expands and solidifies when it meets water. This elastic material is used for long-term seepage prevention, waterproof and plugging of settlement joints in tunnels, basements, civil air defense, subways, tanks, heating wells and military tunnels. The cracks that have been blocked will not leak if there are settlement or dislocation cracks in the future.