Public works

PUBLIC WORKS DRAINTUBE

DRAINTUBE - Road foundation drainage

Use

The installation of a drainage system in the road foundation meets several objectives:

  • Control of the pore pressure in the foundation
  • Drawdown of the water table in cuttings area
  • Protection of the embankment against groundwater
  • Evacuation of the water from consolidation on compressible soils

The DRAINTUBE® FTF drainage geocomposite combines the two functions: filtration and drainage in a single product and a single installation. It replaces the drainage layer made of granular material, and the filtration geotextiles.

DRAINTUBE® FTF has a high and stable over time drainage capacity, even under heavy loads. This allows it to be used under high embankments.

Benefits

  • Efficient drainage and filtration of the infrastructure even under heavy loads
  • Use in cuttings and compressible areas in addition to vertical drains
  • Reduction of the social footprint (less truck traffic)
  • Reduction of the construction time
  • Easy installation with a single product to unroll
  • Cost-effective and environmentally friendly solution as it replaces granular layers

Features

Drainage Drainage
Filtration Filtration
Mechanical protection Mechanical protection

Characteristics

  • 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’)


Projects completed with DRAINTUBE

Drainage and reinforcement on soft soil

Drainage and reinforcement on soft soil

Condé-Pommeroel Canal - Belgium - 110 000 m2
The enhancement of the canal's performances implicated the construction of deposits for the storage of non-aggressive sediments. To make the soils suitable, the solution used was a combination of drainage (SOMTUBE® FTF) and reinforcement (NOTEX® GX).

Replacement of a granular drainage base

Replacement of a granular drainage base

[Public works]

Valenciennes bypass (59)
15 000 m2
The layout of the new ring road revealed a wetland area under heavy stress due to rising groundwater. The solution implemented was SOMTUBE® FTF to ensure drainage while saving installation time and granular material.

Drainage in road structure

Drainage in road structure

[Public works]

RN6 - Zinguichor - Tanaff (Senegal)
188 000 m2
The rehabilitation of the RN6 national road, linking Zinguichor to Tanaff (116 km), is affected by rising groundwater from the Casamance river. The SOMTUBE® FTF geocomposite solution was implemented to effectively drain water from the soil.

Pre-consolidation platform for the creation of a road

Pre-consolidation platform for the creation of a road

[Public works]

RD22 - La Chapelle d’Armentières (59)
15 000 m2
During the construction of the RD22 road, soil was identified as compressible. To consolidate the ground, a solution combining vertical drains at a depth of 22 m with the SOMTUBE FTF draining geocomposite was selected.