ESH(2x1m)/S Hydrologic Studies Unit

The Hydrological Studies Unit, "ESH(2x1m)/S", has been designed by EDIBON to enable autonomous work in the study of water behavior within the soil. A wide variety of experiments can be conducted thanks to the specifications of the unit.

The unit consists of a closed water circuit allowing the operation continuously or discontinuously, an important parameter when studying processes such as water level distribution around a well (stationary process) or water infiltration after precipitation (non-stationary process) using a single piece of unit. The closed circuit consists of a water tank, a computer controlled pumping, flow sensor, different flooding devices over the test area and a drainage system to recover the water.

The main element of the unit is a stainless steel test tank that can be filled with different types of sand and whose inclination can be regulated by a lifting system. The sand tank has numerous pressure taps in the lower part that allow the study of the water level with the help of pressure sensors.

In addition, water can be supplied to the test tank by different precipitation devices consisting of: 8 adjustable valves (simulating rain), from an inlet tank (simulating a river) or from two lateral French wells (simulating groundwater).

The main advantage offered by this unit is its versatility, allowing a high number of tests to be carried out, realistically simulating a soil with a very reduced space occupation and without special requirements.