Tunnels are very efficient parts of our transport infrastructure as they allow quick transport underneath water or ground. Typical areas are mountain regions or underneath rivers and canals and in urban areas. Tunnels typically form critical corridors in these regions and require maximal operating efficiency. Selecting the right geotextile products during the design and construction can help in creating a long lasting tunnel infrastructure that will serve many years with reduced cost and service needs.
Construction of tunnels typically requires the installation of a waterproofing layer to avoid water intrusion into the tunnel. To guarantee functionality of the layer and avoid perforation or leaks a robust and high quality nonwoven geotextile should be used. This will provide a long lasting layer of protection to the liner. In addition, this geotextile can also provide drainage alongside the membrane.
For bored tunnel construction, where risks of fire needs to minimized to guarantee a safe work environment, BontexGeo has developed special fire resistant geotextiles that should be used as protection layer.
Geotextiles can also be used during the construction phase as a separation and filtration layer to construct the access roads and construction areas efficiently with reduced use of granular material.
