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In addition to Mined Tunnels, Protan can deliver full waterproofing systems for a wide range of applications for underground structures.
For umbrella systems, a loose laid system for evacuation of water in tunnels with compartments, Protan recommends the following system:
Due to its remarkable properties against groundwater and chemicals, Protan InfraPlan is a safe choice to ensure longevity of the waterproofing of drained systems.
For pressurized water conditions with compartments and injection system, Protan recommends the following system:
Protan InfraPlan membranes will provide a robust and durable system to withstand hydrostatic pressure in tunnels with barrier protection.
Protan offers high performance solutions for waterproofing of cross-passages between parallel tunnels or as transition within sections.
Our PVC sealing tape Protan Seal Tape is designed to ensure continuity of the protection system, by keeping the same level of robustness along the structure and is a perfect fit for cross-passages applications.
Root and microbiological resistance, stability and of course watertightness, are among the properties that make Protan InfraPlan membranes also an asset for portals and culverts.
Protan recommends use of InfraPlan P20/P22 for this type of applications as it combines all required characteristics while contributing to easy handling and installation.
Other systems and waterproofing solutions are also available, Protan will assist you to find the most suitable system for your project.
For partial waterproofing the most common tunnel application is the Umbrella System/Drainage System. This system is specifically designed for tunnels with dripping water conditions.
Single Barrier System is for hydrostatic water pressure conditions including compartments and injection possibilities. Double Barrier System is also designed to withstand hydrostatic water pressure and combines a test and injection system.
For tunnels with dripping water conditions, the Norwegian Road Authorities recommend to use a Type lll membrane, a reinforced membrane that will provide strength and stability.