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Creating Geometry with Slope Wizard

1. Introduction

In this tutorial we will be creating a 3D slope profile using Slide3's Slope Wizard tool. The Slope Wizard is very useful for quickly creating 2D extruded models for demonstration or teaching purposes. The following includes some of the features:

  • Creates an extruded 2D slope geometry based on user-defined slope dimensions and angles,
  • Allows the user to define multiple soil regions (e.g. weak layers) and assign material properties to each of these regions,
  • The External volume is automatically defined.

By the end of this tutorial you will be able to create a 3D slope of constant profile with multiple soil regions.

Slope Wizard Tutorial Model

All tutorial files installed with Slide3 can be accessed by selecting File > Recent > Tutorials folder from the Slide3 main menu. The finished product of this tutorial can be found in the Create Slope Geometry using Slope Wizard file in the Tutorials folder.

2. Slope Wizard Dialog

There are a couple of ways to access the Slope Wizard dialog.

Intersecting Shapes Icon Select: Geometry > Slope Wizard

Alternatively, you can click on the Add 3D Primitives icon on the toolbar Intersecting Shapes Icon to access the Slope Wizard dialog.

Default Slope Wizard dialog

When Slope Wizard is opened, the tab is set to [Geometry] by default. In this tab, the user can define the geometry parameters (e.g. origin. Next to this you will find the [Materials] tab where the user can define soil regions within the 2D slope.

If you simply select OK in the dialog, leaving all parameters as their default values, an extruded slope model will be created.

Slope Wizard Default Slope

After creating a model with Slope Wizard, you CANNOT make any changes. If you want to edit the model, you will have to delete the existing geometry and re-run Slope Wizard. Slope Wizard can only be used once per project.

We want to define a second material layer and since we cannot make any changes we need to delete the existing geometry first. Select the Slope from the visibility pane on the left.

Select: Geometry > Clear External.

Now we can delete the Slope directly from the Visibility pane by selecting the garbage can icon Delete icon.

Soil Regions

We will add two material planes to define a weak layer using the Slope Wizard [Materials] tab.

Select: Geometry > Slope Wizard

Navigate to the [Materials] tab and Select the Add Material Plane button twice to add two planes.

Enter the following:

Left ElevationRight ElevationMaterial Above
1530Material 2
2035Material 1

Slope Wizard Dialog - Materials Tab

Select OK.

    Your screen should look as follows:

    Model Tiled Starting View

    3. Define Materials

    Select: Materials > Define Materials

    For Material 1 enter the following:

    • Cohesion = 25,
    • Phi = 20.

    Material 1 Properties dialog

    Define Material 2 as a weak layer. Enter Cohesion = 0 and Phi = 15. Select OK.

    Material 2 Properties dialog

    4. Symmetry

    For the 2D extruded models created by the Slope Wizard, the Symmetry option is turned ON by default. The location of the symmetry plane is also automatically calculated, as you can see if you select Project Settings > Symmetry. Select either OK or Cancel in Project Settings.

    Project Settings Dialog - Symmetry Tab

    To double check that the line of symmetry ( a white dotted line) is in the correct location navigate to the Slip Surfaces tab where the line of symmetry will be visible.

    Line of Symmetry Above Model

    5. Compute

    Compute Select: Analysis > Compute

    Remember to save your projects before using Compute.

    6. Results

    To view the results, select the Results Workflow tab Results Tab.

    After clicking Show Contour icon Contoured Model Icon from the toolbar you should see the Bishop FS about 1.2 with base normal stress contour plot as shown below:

    3D model view of contours

    7. Conclusion

    Now you can experiment with Slope Wizard and try different slope dimensions and material planes to become familiar with its capabilities. Here are the takeaways from this tutorial:

    • Slope Wizard is a quick and easy to use tool for geometry creation. It is intended to be a tool for demonstration and teaching purposes.
    • If you require more complicated geometry, you will have to build it using the regular geometry creation and editing tools in Slide3.
    • After you generate a model using Slope Wizard you CANNOT make any changes.

    This concludes the Create Slope Geometry using Slope Wizard.

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