GGU-SIEVE: Examine filter stability of geotextile filters
With regard to examining the filter stability of geotextile filters to Fact Sheet DWA-M 511 use this menu item to determine the necessary soil properties (grain size at d50 and uniformity coefficient Cu) from the grading curve of the relevant soil, which is selected in a dialog box if several grain size distributions are present.

The program then displays the determined values in a message box.

The data can be copied to the Windows clipboard in the usual way using the button "Export to GGU-FILTER-STABILITY via clipboard". If no additional grading curves need to be examined, exit the dialog box by clicking the "Cancel" button.