Project & Case Study Showcase
• Successful construction at 11m depth under high groundwater pressure
• No requirement for additional casing pipe
• Durable, corrosion-resistant sewer system
• Long-term operational reliability with minimal maintenance
• Successful delivery under a combination of highly demanding project condition of conditions. The new sewer was constructed using DN 800 KERA. Drive vitrified clay jacking pipes, supplied by Steinzueg-Keramo, providing a direct jacked solution without the need for additional casing pipes.
Steinzueg-Keramo’ s KERA. Drive vitrified clay pipes were selected due to their:
• High structural capacity for jacking applications
• Excellent resistance to corrosion and aggressive environments
• Proven watertightness under high external pressure
• Long service life with minimal maintenance requirements
Installation details Given the groundwater conditions and sensitive surface structures, a slurry-supported microtunnelling method was employed to ensure controlled excavation and continuous face support.
• Installation method: Microtunnelling( slurry system)
• Nominal diameter: DN 800
• Total length: approx. 400 m
• Installation depth: approx. 11m
Results
• Safe installation beneath railway and river without surface disruption
Conclusion The Treviso project demonstrates how multiple complex load cases and boundary conditions can be successfully managed within a single infrastructure scheme.
KERA. Drive vitrified clay jacking pipes provided the structural capacity, durability and watertightness required for a direct jacked solution. Despite the exceptional combination of loading conditions, the pipes remained well within their performance limits, delivering a robust and future-proof sewer system for generations to come.
Lorenzo Vidus Rosin, Sales Engineer Italy at Steinzueg-Keramo, says:“ KERA. Drive is the sustainable solution. Not only from the material perspective, but also from an installation point of view.”
The ability to install a single-pipe solution under such demanding conditions significantly simplified the overall system while maintaining long-term performance.
For more information about Steinzueg-Keramo, visit: www. steinzeug-keramo. com Or contact: uk. steinzeug-keramo @ wienerberger. com
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