Inserted Hoses (IH) Trenchless Rehabilitation Technology is an advanced method that installs a high-pressure continuous composite hose inside existing metal pipelines, creating a durable “pipe-within-a-pipe” composite structure. During operation, the flexible hose tightly adheres to the host pipe wall.
After years of operation, pipelines inevitably develop corrosion damage and leaks due to material degradation and inadequate maintenance, causing significant economic losses. However, full pipeline replacement is often impractical due to: