White Paper on the Janssen Restructuring Process

Trenchless sewer rehabilitation in cases of severe groundwater infiltration

The Janssen Method as a Trenchless Solution and Preliminary Measure

Pipe and sewer damage combined with severe groundwater infiltration presents operators, engineers, and public clients with unique challenges. Traditional rehabilitation methods such as lining or open-cut construction often reach their technical or economic limits in these situations.

This white paper provides a technical overview of trenchless sewer rehabilitation in cases of infiltration and demonstrates how the Janssen Method, a point injection method with bedding stabilization, can be used – both as a standalone solution and as a preliminary measure before cured-in-place pipe (CIPP) lining.