Mining engineering


DRAINTUBE FT - Base of heap leach pads


When draining leachates as part of metal extraction operations in leach pads, DRAINTUBE® FT provides a suitable solution for a full and timely collection as well as the disposal of metal-rich solutions. Once contained, DRAINTUBE® FT is capable of withstanding very high compressive stress, even at high temperatures.

The design of leach pads in heaps meets strict environmental requirements in terms of stability and insulation. DRAINTUBE® FT is therefore a first-class technical alternative to collect leachates and protect waterproofing barriers. In addition to being low-cost and very easy to implement, it has a better impact on the environment as it replaces granular layers, and reduces or eliminates the transport of these resources.

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.




  • High drainage capacity under heavy loads
  • Improved collection system and hydraulic pressure control
  • Improvement of the stability of the pad
  • Optimization of existing disposal areas
  • Replacement of the collector trenches using the Quick Connect system
  • Easy installation with a single product to unroll
  • Cost-effective and environmentally friendly solution as it replaces granular layers


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