How to Use Plaxis 2D Viewer to Visualize and Analyze Geotechnical Models

Plaxis 2D Viewer is a free software tool that allows you to open and view Plaxis 2D projects created with Plaxis 2D software. Plaxis 2D is a powerful and user-friendly finite element package for geotechnical engineering applications, such as slope stability, excavation, foundation, tunneling, embankment, groundwater flow and more.

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With Plaxis 2D Viewer, you can easily explore the geometry, boundary conditions, loads, materials and results of any Plaxis 2D project. You can also perform basic calculations and post-processing operations, such as contour plots, cross-sections, graphs and tables. Plaxis 2D Viewer is a great tool for sharing and presenting your geotechnical models with colleagues, clients or students.

In this article, we will show you how to use Plaxis 2D Viewer to visualize and analyze geotechnical models in a few simple steps.

Step 1: Download and Install Plaxis 2D Viewer

To download Plaxis 2D Viewer, you need to register for a free account on the Plaxis website. After logging in, you can find the download link under the Products section. The installation process is straightforward and should not take more than a few minutes.

Step 2: Open a Plaxis 2D Project

To open a Plaxis 2D project, you can either drag and drop the project file (.p2dxlog) into the Plaxis 2D Viewer window or use the File menu to browse for the file. You can also open multiple projects at the same time and switch between them using the tabs at the top of the window.

Step 3: View the Model Geometry and Properties

Once you open a project, you will see the model geometry in the main window. You can use the mouse to zoom in and out, pan and rotate the view. You can also use the toolbar buttons to change the view mode (wireframe, solid or transparent), toggle the grid and axes on and off, and adjust the lighting and perspective.

To view the model properties, such as boundary conditions, loads, materials and phases, you can use the Model Explorer panel on the left side of the window. You can expand or collapse each category by clicking on the arrow next to it. You can also select any item in the Model Explorer to highlight it in the main window and see its details in the Properties panel on the right side of the window.

Step 4: View the Calculation Results

To view the calculation results, such as displacements, stresses, strains and pore pressures, you can use the Results Explorer panel on the left side of the window. You can expand or collapse each category by clicking on the arrow next to it. You can also select any item in the Results Explorer to display it in the main window as a contour plot.

To change the color scale, range and legend of the contour plot, you can use the Contour Plot Settings panel on the right side of the window. You can also use the toolbar buttons to show or hide mesh lines, nodes and labels.

Step 5: Perform Post-Processing Operations

To perform post-processing operations, such as cross-sections, graphs and tables, you can use the Post-Processing menu at the top of the window. You can choose from various options depending on what type of data you want to analyze and how you want to present it.

For example, if you want to create a cross-section along a line or a curve in your model, you can use the Cross-Section option. This will open a new window where you can define the cross-section geometry and select what results you want to display along it. You can then view the cross-section as a plot or a table.

If you want to create a graph of any result variable versus any other variable or parameter in your model, you can use the Graph option. This will open a new window where you can select what variables or parameters you want to plot on the x-axis and y-axis. You can then view the graph as a line chart or a scatter plot.

If you want to create a table of any result variable or parameter in your model for any selected nodes or elements, you can use the Table option

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