Casagrande filter

Piezometric tubes: purpose

Piezometric tubes are designed to measure pore water pressure and groundwater level in soils, enabling simple and reliable monitoring of subsurface hydraulic conditions.

Open standpipe piezometers

Open standpipe piezometers, on the other hand, allow groundwater-level monitoring in high-permeability soils through a tube column that enables water to stabilize naturally at the surrounding piezometric level.

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