For a partial Waterproofing System the most common tunnel application is the Umbrella System / Drainage System. This system is specifically designed for tunnels with dripping water conditions.
These tunnels are called umbrella tunnels (The Waterproofing System is only in the vault – no water pressure) needs drainage at the bottom of the tunnel in order to evacuate the infiltrating or temporary water.
EXAMPLES OF APPLICATIONS:
SYSTEMS DESCRIPTIONS:
Protan recommends to use InfraPlan P20, P22 or P22+ for drainage applications. Geotextile thickness can differ depending on the substrate quality.
Product data sheet
PDS Protan InfraPlan P20
PDS Protan InfraPlan P22
PDS Protan InfraPlan P22+
Declaration of Performance
DOP Protan InfraPlan P20
DOP Protan InfraPlan P22
DOP Protan InfraPlan P22+
