There are 3 main grabbing techniques: Libero, Wellpoint and Pozzi. But in reality, there are at least two other techniques that can be combined with the previous ones, namely the Draining Piping and the Ejector System.
They are specific for certain types of terrain and construction sites.
The structure of the soil is almost always heterogeneous. It’s therefore essential to have a good geological report and an inspection on site, in order to choose the right drainage system and use the correct embankment system.
It consists of direct suction inside the area to be drained with immersion or
surface pumps (electric or diesel)