Umbrella/Drainage System - Mined Tunnel

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.

Examples of Application:

Road Tunnels
Railway Tunnels

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System description:

Protan Disc
In-Situ concrete
Protan InfraPlan Tunnel Membrane
Protan Geo (Geotextile)
Shotcrete
Protan Drain (Drainage Profile)

Protan recommends to use InfraPlan P20, P22 or P22+ for drainage applications.

Protan InfraPlan Systems

Umbrella Draining System - Mined Tunnel

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 / Double Barrier System - Mined Tunnel

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.

Tunnel Lining Type III - Mined Tunnel

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.

InfraPlan - Other Systems

In addition to mined tunnels, Protan deliver full waterproofing systems for a wide range of applications for underground structures: Cut and Cover umbrella and barrier systems, cross-passages, portals and culverts.