Mining engineering


DRAINTUBE FT - Cover for mine tailings facilities


After operation, the tailings storage areas are covered by a final impermeable cover system. This is important for the protection of the environment by preventing the evaporation of tailings into the atmosphere or the infiltration of liquids (leaching) and oxygen (oxydation) of the ores.

The DRAINTUBE® FT ensures the drainage of the final covers of mine tailings storage sites. It offers a solution adapted to filtration, rainwater drainage and/or gas collection and mechanical protection of the geomembrane against puncture. Installed above and below the geomembrane, this drainage geocomposite allows fluids to be evacuated to a collector trench. It replaces the geomembrane protection geotextile, the granular drainage layer, and the filtration geotextile.

Connection to the collector via the Quick Connect system 

The Quick Connect system connects the mini-pipes of the DRAINTUBE® FT directly to a main collector pipe. This allows for the replacement of the collector trenches when site conditions make their construction difficult. It also permits to better control the outflow.



  • Mechanical protection of the waterproofing geomembrane against puncture
  • Effective drainage of rainwater (on the geomembrane) or gas (under the geomembrane)
  • Covering soil filtration
  • Improved waterproofing performance by limiting hydraulic loads on the geomembrane and pressure under the geomembrane
  • Cost-effective and environmentally friendly solution as it replaces granular layers
  • Preserves the properties of the containment layer
  • Stability of the entire cover, even on slopes
  • Product benefiting from more than 20 years of feedback
  • Product easy to unroll and install


Drainage Drainage
Filtration Filtration
Mechanical protection Mechanical protection


  • Polypropylene geocomposite
  • Roll width : 3.90 m
  • Roll length : 50 m
  • 3 diameters of perforated mini-drains : 16 mm, 20 mm and 25 mm
  • 4 possible distances between mini-drains : 200 cm, 100 cm, 50 cm and 25 cm