We are now going to define Random Variables for this material. Notice that “Soil 1” is selected on the left side. You will see the Material Statistics dialog. This is easily done with the Material Statistics dialog. Random variables are defined using the options in the Statistics menu.įor this tutorial, we will define the following material properties as Random Variables: In order to carry out a Probabilistic Analysis, at least one of your model input parameters must be defined as a Random Variable. Notice that a Statistics menu is now available, which allows you to define almost any model input parameter as a random variable. The safety factor will be re-computed N times (where N = Number of Samples) for the Global Minimum slip surface, using a different set of randomly generated input variables for each analysis. When the Analysis Type = Global Minimum, this means that the Probabilistic Analysis is carried out on the Global Minimum slip surface located by the regular (deterministic) slope stability analysis. Note that we are using the default Probabilistic Analysis options: For more information on running a spatially variable analysis, see Tutorials 33 and 34. Notice the Spatial Variability Analysis checkbox. In the Project Settings dialog, select the Statistics page, and select the Probabilistic Analysis checkbox. To carry out a Probabilistic Analysis with Slide2, the first thing that must be done, is to select the Probabilistic Analysis option in the Project Settings dialog. Select File > Recent Folders > Tutorials Folder from the Slide2 main menu, and open the Tutorial 01 Quick Start.slmd file. This tutorial will be based on the same model used for Tutorial 1, so let’s first read in the Tutorial 1 file. All tutorial files installed with Slide2 can be accessed by selecting File > Recent Folders > Tutorials Folder from the Slide2 main menu. The finished product of this tutorial can be found in the Tutorial 08 Probabilistic Analysis.slmd data file. It will demonstrate how quickly and easily a probabilistic slope stability analysis can be performed with Slide2. This tutorial will familiarize the user with the basic probabilistic analysis capabilities of Slide2.