When the environment of the area of works permits, we set up a surface dewatering device, generally provided for a limited pumping flow rate
Surface dewatering is recommended for low permeability ground. It enables the capture of the water table water into trenches filled with drainage blankets connected to sumps.
Setting up this pumping technique will depend on several factors: geology, lowering height, adjoining structures and the overall environment of the site.
- Analysis and design: particular specifications, contractors tendering file, breakdown of total price, declaration of intention to commence works, local authority inspection visit etc.
- Setting up sumps
- Creating a draining blanket and/or draining trenches
- Installation of a submersible pump inside each sump
- Installation of the dewatering network
- Commissioning the pumps
Our case studiesAll case studies
Construction of an Office Block
Lowering the water table by bleeder wells during construction of an office building with 2 basement levels
Lowering the Water Table in Sandy Ground
Lowering the water table in sandy ground to build a wastewater treatment plant, the wellpoint technique was used
Wellpoints for Holding Tank
Dewatering by wellpoints for the construction of a rainwater holding tank