Mining engineering


DRAINTUBE FT - Sludge dewatering

Marquage CE


To ensure sludge dewatering in coalfields, DRAINTUBE® FT provides a suitable solution to recover as much fresh water as possible from tailings and reduce the carbon footprint of mining waste deposits by reducing their water content.

The installation of DRAINTUBE® FT is a solution which meets air and water quality regulations with a view to limiting the impact of the mining activity on local populations, reducing the environmental footprint and optimising the recovery of tailings water. The mining industry has been asked to reduce the amount of fluid by collecting sludge and storing it in dedicated areas.


  • Limited water infiltration in slopes and the bottom of coalfields
  • Slope stability
  • Reduction in water stagnation time
  • Reduced water evaporation
  • Ease of installation with a single product to unroll


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


Technical data sheet
Ask for the technical data sheet

Projects completed with DRAINTUBE FT

Drainage and protection under waterproofing layer

Drainage and protection under waterproofing layer

[Public works]

A22 motorway central reservation - Roncq - Tourcoing (59)
43 000 m2
The waterproof area of the A22 motorway’s central reservation is affected by gas leaks. The DRAINTUBE® FT drainage system was installed to drain gases and guarantee the integrity of the geomembrane.

Waterproofing of motorway ponds

Waterproofing of motorway ponds

[Hydraulic structures]

A63 stormwater ponds - Saint-Geours-de-Maremne (40)
67 000 m2
To ensure the sustainability and waterproofing of the A63 stormwater ponds, a DRAINTUBE® FT solution was implemented. It drains rising groundwater while guaranteeing the waterproofing of the ponds.