As sewer pipelines continue to age, municipalities and infrastructure operators need rehabilitation methods that can minimize road excavation, reduce traffic restrictions, and improve worker safety.
At CSPI-EXPO, SW Liner Construction Association introduced the “SW Liner Method,” a trenchless pipe rehabilitation method that forms a new pipe inside an existing sewer pipeline using rigid PVC strips.
In this method, a strip-shaped rigid PVC material is wound spirally inside the existing pipe to create a new pipe. The gap between the newly formed spiral pipe and the existing pipe is then filled with grout to create an integrated composite structure.
The method was presented as a safe and practical solution for sewer pipe renewal, offering the advantages of reduced road excavation and fewer tasks requiring workers to enter the pipeline.
Challenges addressed
FAQ
What is the SW Liner Method?
How is the new pipe integrated with the existing pipe?
What are the main advantages of the method?
View video transcript
The method we are introducing is called the SW Liner Method.
The SW Liner Method forms a new pipe inside an existing sewer pipeline by winding strip-shaped rigid PVC boards in a spiral form.
There is a gap between the spiral pipe and the existing pipe, and this gap is filled with grout to create an integrated structure with the existing pipe.
The advantages are that road excavation is not required, and because there is less work that requires entering the pipeline, it is a highly safe construction method.
Contact the company
SW Liner Construction Association
Available Languages
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