Faced with severe leaks in a critical 1500mm trunk main, Radius Subterra provided an innovative pipeline rehabilitation solution using their close-fit PE liner system. This approach restored the pipeline’s integrity within tight time constraints, eliminating ongoing leakage issues and extending the pipeline’s lifespan by 50 years.
Project Challenges
- Significant Leakage
The main trunk supply pipeline was losing up to 35 litres per second due to the degradation of rubber sealing gaskets at many joints. - Limited Downtime
The pipeline, which forms a critical link between Geislingen and Langenau, could only be taken out of service for a maximum of three days, limiting the time available for repairs.
The Radius Subterra Solution
- Innovative Liner System
Radius Subterra re-engineered and extended its folded close-fit PE liner system to rehabilitate the 2.3-kilometre-long, large-diameter water supply trunk main. This approach avoided the high costs and disruption of traditional relaying methods. - Rapid Insertion and Restoration
The careful preparation and rapid insertion of the liner allowed the pipeline to be restored in less than two days, maintaining bulk supply reserves and preventing critical service disruptions.
Key Benefits
Long-Term Durability
The liner provides a robust, interactive barrier that extends the pipeline’s life by at least 50 years.
Minimised Disruption
The innovative liner system reduced service downtime and avoided extensive excavation and relaying.
Cost-Effective Solution
By using the folded close-fit liner, Radius Subterra avoided the high costs and disruption associated with traditional pipeline replacement methods.
Reduced Maintenance Needs
The solution eliminates ongoing leakage detection efforts and the necessity for hazardous manual repairs, ensuring efficient and reliable operation.
Conclusion
Radius Subterra successfully restored the pipeline’s capacity and functionality by implementing a close-fit liner solution, providing a continuous protective barrier with a lifespan of at least 50 years. The intervention eliminated ongoing leakage issues, removing the need for repetitive repairs and hazardous man-entry maintenance.
Categories Pipeline Rehabilitation
Pipe Rehabilitation
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