During the construction of a water ponds, flows of underground water and water tables can be intercepted, wich must be drained to eliminate the hydrostatic pressure and guarantee the stability of the structure.
The fitting of INTERMAS geocomposites below the waterproofing allows:
- Interception of underground flows.
- Lowering the water table.
- Cutting capillary ascents in clayey and loamy soils.
As INTERMAS geocomposites protects the geomembrane, it is not necessary to fit heavy protection geotextiles.
When designing and building a water ponds, it is advisable to analyse the presence of biogas in the subsoil (decomposition of organic material). The perfect impermeability of HDPE geomembranes is an impenetrable barrier to the gas on its route upwards. It accumulates below the geomembrane and exercises continuouspressure on the plastic. Pockets of biogas form, breaking the membrane and destabilizing the water ponds.
INTERMAS geocomposites fitted bellow the geomembrane is the solution.
- It intercepts the ascent of gas.
- It quickly conducts it to the grooved drain pipes (which direct it away from the area occupied by the basin)
- It eliminates the pressure due to trapped gas.
- It prevents the formation of dangerous pockets of biogas.
In water ponds storing pollution liquids (leachates, waste water, etc.) it is a good idea to install safety waterproof layyers and leak-detection drainage systems covering the whole surface of the water ponds to prevent the prelocation of substances that pollute the evironment.
So,INTERMAS geocomposites constitutes the most effective and economical method, thanks to its great drainage capacity under high loads an minimum slopes.
Why is INTERMAS drainage the ideal geocomposite for water ponds?
TECHDRAIN’S great drainage capacity on minimum slopes and under heavy loads makes it the ideal system for draining water leaks, gases and ground water at the bottom of the water ponds
INTERDRAIN is made of a geonet with one or two heat-set geotextiles, offering protective properties to the geomembrane, so it is not necessary to fit a geotextile. It is the most economical solution for drainage in water ponds.
Traditionally, geotextiles are normally used as a drainage system under water ponds. However, geotextiles do not have enough drainage capacity, so it is not a technically appropriate solution. Instead, INTERDRAIN and TECHDRAIN can offer the desired drainage solution.
CONCRETE CANVAS Water ponds
Concrete Canvas is commonly used as a lagoon lining and bank protection
Flexible, concrete filled geosynthetic which provides a thin and durable concrete layer when hydrated.
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-Rapidly installed concrete alternative
-Excellent chemical resistance
-Good weathering performance
-BBA certified with a durability in excess of 120 years
Can be installed for applications with limited access and comes ready to use – no mixing, measuring or compacting required.
Aldesa Water Pond (Spain)
Isla Condado Alhama Water Pond (Spain)
Maials Water Pond (Spain)
WATER POND 4
WATER POND 5
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Ronda Collsabadell, 11 (P. I. Collsabadell)
08450 Llinars del Vallès (Barcelona)
Tél: +34 938 425 700
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