GGU-CONSOLIDATE: Test 2 - Consolidation (numerical)
With numerical consolidation, the two-layer system can be considered. Select the following preferences from the menu item "Edit/Type of consolidation":

The number of menu items in the "Edit" menu has increased. Select the menu item "Edit/System parameters" and enter the data from the following dialog box:

You can skip the menu item "Edit/Define times", as the same times as for Test 1 will be used. Select the menu item "Edit/Soils". Enter the following values into the dialog box and confirm with "Done".

Select the menu item "Edit/Pore water pressure (max)", in order to enter the pore water pressure distribution at the start of consolidation. Edit the number of stresses to 2 with the "x stress(es) to edit" button. Then enter the values into the dialog box.

You thus define a constant pore water pressure of 95.0 kN/m² across both layers. Now select the menu item "System/Analyse". The program first performs an estimate of the modelling time required. If the forecast modelling time is greater than 5 seconds, a message box opens, allowing you to start or abort the analysis. Information on reducing the modelling time is available by pressing the "Info" button. If you click "Yes", modelling follows. If everything has been entered correctly you can see from the time-settlement graphic at the lower right that around 350 days are needed until 80% settlement has occurred. Alternatively, you can also read the respective values from the table at the left page margin.
In contrast to the brutal forecast of 900 days in Test 1, this more sensitive investigation has brought about a reduction in the lying time by a factor of approximately 3. The client, however, is impatient and will still not accept an embankment lying time of around 1 year. The system will therefore be examined below in even more detail.