The client needed to dig up to an altitude of -4.00 m from the ground level in an area occupied by a rolling / accumulation basin. Great attention was paid to the drainage system, as the soil was very heterogeneous, with a layer of coarse gravel down to -3.00 m and then flowing into a very compact clayey bank up to many meters deep.
Construction of a barrier to dissect the existing basin for the subsequent creation of 4 pre-filtered wells diam 600mm with free suction pumps for the drainage of water from the most permeable layer, avoiding clogging of the drainage system.
Abatement of the water table to the required depth without hindering processing or clogging risks for the system.
Application: Excavation for accumulation tank
Pump typology: Vacuum-assisted self-priming electric pumps
No. of pumps: 4