Construction of a Wastewater Treatment Plant
Lowering the water table with deep wells in a watertight wall of steel sheet piles to construct a wastewater treatment plant
Context
Project Type :
Dewatering
Location :
Belleville (69)
Problem
- Phase 1: drying the bottom of the trench with strong supply channels in the gravelly sands to create a pond of 350 m²
- Phase 2: filling the ponds to check the structures
- Height to lower: 4 metres
Solution
- Advising and assisting the customer on the steel sheet pile solution
- Complete engineering of dewatering by deep wells in an enclosure closed off by steel sheet pile
- Definition and realisation of pumping wells
- Complete installation of lowering the water table :
- Pumps
- Dewatering network
- Decantation before removal to the sewerage network
- Remote monitoring of pumping with permanent on-call service
- Filling ponds by pumping into the well to remedy the lack of high flow rate water supply
- Duration: 4 months
