How to Determine the Soil Permeability Coefficient? (1)
A precise method for determining the k-value for a certain groundwater area in situ involves lowering the groundwater using pumps [Herth95].
Image:
Groundwater lowering [Source: STEIN Ingenieure GmbH]
In order to cover all traversed soil layers, the extraction well has to have the same depth as the wells of the future groundwater lowering system or pipe run.
As a general rule, the soil samples of the extraction well and all measuring level positions should be tested by means of screen analyses in order to identify differences in the ground that can be taken into consideration in the construction planning stage.
