Casagrande And Standpipe Piezometers

The Casagrande Piezometers are used to measure the pore water pressure in medium-low permeable soils. They are composed by a filter unit connected to the surface with single or twin tube. Standpipe piezometers are used to monitor the ground water table level in high permeability soils. The standpipe filter unit consists of a Casagrande filter not sealed in the borehole with bentonite, or a slotted tube covered by geotechnical fabric in order to filter the water entry. More info.↗