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Import RocFall2 Model Tutorial

This tutorial provides an introduction on how to import a RocFall2 file add Barriers to a RocFall3 model and interpret the results.

Topics Covered in this Tutorial:

  • Import RocFall2 files
  • Extrude 2D models
  • Add Barriers
  • Graph Barrier Results

Finished Product:

The finished product of this tutorial can be found in the Tutorial 03 RF2 import and barrier data file. All tutorial files installed with RocFall3 can be accessed by selecting File > Recent Folders > Tutorials Folder from the RocFall3 main menu.

1.0 Import RocFall2 File

Let's import the RocFall2 Quick Start tutorial file:

  1. Select File > Import > Import RocFall2 File.
  2. Go to the Tutorials folder included with your RocFall3 install. The default location of this folder is C:\Users\Public\Documents\Rocscience\RocFall3 Examples\Tutorials. Select the Tutorial 03 RF2 file and click Open.

The Import Rocfall2 Options dialog pops up.

Import RF2 dialog

  1. Enter 50 m as the Extrusion Depth, check the Import Point Seeders as Line Seeders option and enter 40 m as the Seeder Extrusion Depth.
  2. Click OK.

This imported model should have all geometry and properties brought in correctly. Open up the corresponding dialogs and observe the following:

  • Analysis > Project Settings > Methods: Lumped Mass Analysis Method with Consider Rotational Velocity checked
  • Materials > Define Materials: Three slope materials (Type One, Type Two and Type Three) with statistical variability of Normal and Tangential coefficient of restitution
  • Seeder > Define Seeder Properties: Line seeder with statistical variability of initial velocity
  • Number of rocks = 50

Note that the finished version of this tutorial is Tutorial 03 RF2 Import and Barriers

1.1 Initial Compute

Save the model and run compute.

  1. Select Analysis > Compute compute
  2. Click on the Results workflow tab and observe the path results.
  3. Results no barrier

  4. Select Interpret > Graph Endpoints , use the default options in the Chart Options dialog, and press OK.
  5. Runnout Graph - No Barrier

  6. If you also own RocFall2, open and run Tutorial 1 and compare the 2 endpoints plot.

    RocFall2 Results
  7. The next part of the tutorial will have you add a barrier. Let's first close the Endpoints graph using the close option X in the right corner of the window tab, then use the Interpret > Clear Results to remove the results.

2.0 Add Barrier

A barrier in RocFall3 is a polyline on the slope with defined height, which can be placed anywhere along the slope to alter the paths of the rocks as they travel down the slope. You can choose to define Custom Type barriers or choose from our built-in manufacturer library.

    If a Custom Type is selected, the following inputs are required:

    • Model Type: Custom or Infinite
    • Capacity (non-infinite)

    If a Predefined barrier is selected, the following inputs are required:

    • Barrier Design
    • Energy Level: MEL or SEL (when available)
    Any number of barriers can be added to the slope. Barriers, however, cannot cross other barriers and cannot cross slope segments.

    Change to the Barriers workflow tab then:

    1. Select Barriers > Add Barrier add barrier icon
    2. In the Add Barrier dialog, enter a height of 3.5 m. Keep the Default Barrier Property in the dropdown.
    3. Add barrier

    4. Click on Add Points on Viewport.
    5. In the top view, try to click on points very close to (15,0) and (15,50). Don't worry about getting the exact points. Right click and select Done. The points you added can now be edited to the exact locations mentioned above. Click OK in the Add Barrier dialog.

    You can see a barrier was added.

    Add Barrier

    Barriers can also be added by converting from polylines. As an exercise, create a polyline with 2 vertices: (15,0,-24.68253968) and (15,50,-24.68253968). Select the polyline from the Visibility Tree. From the Barriers menu, select Add Barrier from Polyline. Follow the same steps from above to put in Height and click OK.

    2.1 Compute

    1. Select: Analysis > Compute compute
    2. Click on the Results workflow tab and observe the path results.

    Results Barrier

    You can see that all the paths that went down the bench are caught by the barrier.

    1. Select Interpret > Graph Endpoints and use the default options in the Chart Options dialog, and press OK. You'll see the following plot.

      endpoints with barrier
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