The 6 km double-track Drammen Tunnel between Drammen and Kobbervikadalen, Norway, is designed for over 100 years of service. Naue supplied and installed a complete waterproofing system to protect it from groundwater and ensure long-term reliability.
Naue Carbofol® is a HDPE liner for landfill sealing, mining containment, and groundwater protection.
Naue Secutex® is a mechanically bonded nonwoven geotextile for separation, filtration and protection in roads, railways and hydraulic engineering projects.
The Drammen Tunnel, a state-of-the-art 6 km long double-tracked railway tunnel between Drammen and Kobbervikadalen, Norway, is a testament to modern engineering. Designed for a functional service life exceeding 100 years, this project required the utmost in waterproofing excellence. Naue was at the forefront, delivering and installing a comprehensive system to protect against groundwater impact, ensuring longevity and reliability.
Our commitment to excellence was demonstrated through the meticulous installation by our teams of certified, highly experienced welders. Guaranteeing a smooth construction process, our teams worked tirelessly to install every component with precision, adhering to the highest quality standards.
At Naue Sealing, our service extends far beyond product delivery. Our Norwegian branch/permanent establishment handled all administrative tasks, from material importation and tax matters to ensuring compliance with local regulations. We provided end-to-end service.
Naue was responsible for the delivery and installation of approximately 170.000 m2 protection geotextile Secutex® R1001-B2, 170.000 m2 Carbofol® tunnel membrane 2.0, 400.000 pcs Carbofol® Rondelles and 600 pcs Carbofol® ME-Anchors.
The Carbofol® ME Anchor represents a leap in sealing technology. This non-penetrating solution ensures the effective fixing of reinforcements while maintaining the integrity of the waterproofing membrane, marking a significant advancement in tunnel engineering.
For the gap-grouting of the inner shell arch area, injection hoses were placed on the tunnel geomembrane. The Carbofol® Click System was used.
Naue supplied and installed the protection geotextile, tunnel membrane, fixings and injection connections for a coordinated waterproofing solution.
Carbofol® and Secutex® protect the tunnel structure against groundwater exposure and support a service life exceeding 100 years.
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