MINING ENGINEERING DRAINTUBE FTF

Internal drainage is of vital importance to the safety and reliability of tailings dams. The rate at which the tailings consolidate and the sensitivity of the structure to liquefaction depend almost entirely on drainage.

DRAINTUBE^® FTF geocomposite provides a suitable solution to improve the collection of the water and control the pore pressure. It has a high and stable over time drainage capacity, even under heavy loads.

• At the base of the dam as horizontal drainage blanket, DRAINTUBE^® FTF lowers the phreatic surface
• At regular intervals into the tailings dam, as finger drains, DRAINTUBE^® FTF helps reduce the pore pressure and controlling the internal erosion

In addition to being cost-effective and easy to install, it has a better impact on the environment as it replaces granular layers and reduces or eliminates the need to transport these resources.

Connection to the main collector pipe using the Quick Connect system

The Quick Connect system connects the mini-pipes of the DRAINTUBE^® FTF 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 phreatic surface control
• Reduced risk of dike failure and better use of tailings to build stable slopes
• Reduced number of collectors or finger drains needed
• Easy installation with a single product to unroll
• Cost-effective and environmentally friendly solution as it replaces granular layers

• Multi-linear drainage geocomposite (ASTM D4439)
• Perforated mini-pipes made of polypropylene
• 3 diameters of perforated mini-pipes: 16 mm, 20 mm and 25 mm
• 4 spacing options between the mini-pipes: 2 m, 1 m, 1/2 m and 1/4 m (80’’, 40’’, 20’’, 10’’)
• Standard roll size: 3.98 m x 75 m (13.1’ x 246’)