FLAC3D is an unparalleled program for continuously analyzing Lagrangian phenomena of various terrestrial phenomena. Although it is a powerful product in the field of numerical computing, it has many uses in mechanical science, but the main use of this program is in civil, mining and geomechanical issues. This program models and evaluates the nonlinear behavior of structures and structures constructed on soil, rock and other similar materials. In fact, these environments are interwoven together. The geometry of each component is clearly defined and dependent on its related factors and metrics. The user is able to change the geometry by changing these parameters. Changes may be linear although they may be linear, but any changes made to all elements may have a nonlinear state.