References
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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.
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.
Road drainage trench earthwork and waterproof culverts
[Public works]
A150 motorway - Rouen (76)
18 000 ml
As part of the A150 project in Rouen, the DRAINCOTEX® solution was used for road drainage trench earthwork, combined with STABILINER® ALVEO to create a water barrier, retain earth and revegetate culverts.
Earth retention on landfill capping
[Environment]
Landfill - Salazie (Reunion Island)
30 000 m2
To enable earth retention to a depth of 30 cm, the AFITER® 3D solution was implemented on the slopes of the landfill’s capping dome.
Drainage under waterproofing layer and esplanade concrete slab
[Building]
Philharmonie de Paris (75)
22 000 m2
Philharmonie de Paris involves many outdoor circulation areas. SOMTUBE® FTF was installed in these areas to drain stormwater run-off with a view to limiting contact with the slab waterproofing layer and preventing any risk of ground cracking.
Rinsing of sediments
[Public works]
Condé-Pommeroeul canal
Vieux-Condé (59) - 55 000 m2
A sediment dredging operation was required as the Condé-Pommeroeul canal was completely silted. A geomembrane was installed, along with DRAINTUBE® FT to protect it and drain the water generated by the rinsing of dredged sediments.
Earth retention and revegetation of slopes
[Hydraulic structure]
Watertight pond - Les Bordes golf course (41)
60 000 m2
To revegetate watertight ponds, the stability of the topsoil layer must be guaranteed. The AFITER® 2D solution was implemented on the slopes of ponds to enable earth retention and therefore revegetation.
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.
Earth retention in infiltration ponds
[Hydraulic structure]
Richwiller (68)
600 to 800 m2
To enable load bearing and earth retention to a depth of 15 cm for long-term revegetation, the ALVEOTER® solution was implemented on the slopes of an infiltration pond, with 45° gradients.
ONE GROUP, 7 ENTITIES
