Waterproofing of Tunnels under water pressure

Tunnel under water pressure in Wiesing, Austria
Metro of Prague, Czech Republic

The use PVC-P geomembranes as a waterproofing for tunnels under water pressure is a sophisticated and safe technology to protect the construction against destructive influences of the water.

With the development of the new high speed railway tracks, tunnels became longer and the challenge for the waterproofing system became higher. Many of these tunnels are exposed to high water pressure and it has to be sure that the waterproofing system is adapted to such strain. It is important to use high quality geomembranes in thickness superior to 2,0mm as the puncturing resistance of the geomembrane rises exponential with increasing thickness. Also the bottom of the tunnel is receiving a complete waterproofing. The whole waterproofing system has to be adapted as it is not excluded that the geomembrane will not be punctured during the construction work. Therefore compartments with water stops and injection hoses minimize repair costs in case of a damage of the waterproofing system.

RENOLIT Group has the right product to make your project watertight against the negative influences of water. The technical service is also available to you in finding the right technical solution for your waterproofing task. This combination should help you to offer a satisfying work to your client.

To have more detailed information about how to execute the waterproofing of tunnels under water pressure, see the document about “Waterproofing of Tunnels under water pressure”.

Depending on the employment RENOLIT can offer the right membrane

  • RENOLIT ALKORPLAN 35034    opaque geomembrane following RVS 8T- Austria
  • RENOLIT ALKORPLAN 35036    translucent geomembrane with Avis Technique - France
  • RENOLIT ALKORPLAN 35038    black geomembrane resisting to bitumen
  • RENOLIT ALKORPLAN 35041    geomembrane with signal layer following RVS 8T, DS853

The geomembranes of RENOLIT are corresponding to the most important standards as

  • DS 853, ZTV Tunnel         Germany
  • Heft 365, RVS 8T         Austria
  • SIA 280            Switzerland
  • Avis Technique            France

The European Certificate is also available.
Ask our service department for the agreement you need.

Since over 30 years RENOLIT ALKORPLAN geomembranes are used as lining material for tunnels under water pressure on nearly all continents of the world. Their quality, weld ability, flexibility and reliability are estimated by all users of our geomembranes.

Have a look at our case studies and references.