Tunnel Waterproofing

Tunnels are built with a design life expectancy of over 100 years, which means that standards for tunnel construction must be high, particularly those involving sealing and waterproofing systems. A waterproofing system has the task of protecting the tunnel construction against damage from moisture or unintentional entry of water as well as the danger posed by aggressive water or soils and effects of chemicals. Thus, reliable functioning of waterproofing system is of particular significance in the case of traffic tunnels like railways, which are not accessible or stopped for subsequent repairs after seepages or leakages.