The soil massif type Generated from soil samples is entered in the dialog box shown below.
Soil Samples
In area (1), the soil samples from which the massif is to be generated must be assigned to the massif. This can be done directly by entering the number of the respective sample in the corresponding field or by selecting the graphical selection.
Soil massif geometry
In area (2), the soil massif geometry is defined. The topology type describes the shape of the base area of the massif.
Specify the center of the surface of the soil massif. The values a and b describe the total lengths of the outer edges of the massif.
The top edge of the massif results from the top edge of the soil samples. The depth of the massif is described by deltaZ.
It is possible to define a rotation about the z-axis for the massif.
Options
If the ground water level is to be taken into account in the further analysis of the soil massif, it is necessary to activate the corresponding check box in the Options section of section (3). By activating the check box, the ground water surface is generated from the respective ground water levels of the assigned soil samples and entered in the check box field.
Generate
If the soil massif is completely described by the input values, you can create it by clicking the "OK" or "Apply" buttons.
Using the Generate function, you can create a soil massif from the soil samples, consisting of one soil solid per layer according to the specified geometry and layering. For this, the boundary surfaces of the soil layers of the solids are approximated by means of surfaces of the type NURBS.
Furthermore, the surface support of the lateral and bottom boundary surfaces is generated.
The generated support can be displayed and edited, if necessary, in the Navigator - Data in the subfolder Surface Supports of the folder Types for Surfaces. This can be seen in the following figure.
During the generation, the soil massif obtains a hinged surface support on its bottom side and roller supports for the lateral edge surfaces, which allow for displacements parallel to the surface.
Video
The following video shows in a nutshell the procedure of creating soil massifs from soil samples in RFEM 6.
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