Tunnel and underground works

For the construction of natural and artificial tunnels, the most critical requirement is waterproofing the structure and removing rainwater or groundwater.
To achieve this, a quality nonwoven geotextile and/or a drainage geocomposite with high in-plane drainage capacity must be used.

In natural tunnels, the waterproof membrane must be adequately protected by a nonwoven geotextile to prevent damage both during installation and concrete lining casting phases, and throughout the entire service life of the structure. The geotextile must therefore have high resistance and durability in alkaline environments, such as Geodren® PPST and Geodren® PPEXT.

In artificial tunnels, more complex challenges may arise where, in addition to protecting the waterproofing layer, the disposal of rainwater or groundwater must also be considered.

For this purpose, the SintexDrain® range of very low compressibility drainage geocomposites can meet operating pressure requirements of up to 300 kPa, while the more compressible NewDrain® drainage geocomposites can be used where pressures are below 100 kPa.

All Edilfloor products represent an efficient and cost-effective solution and can be installed rapidly.