Manually Map a Geological Domain

Domains can be mapped manually with geotechnical characteristics for Stability Analysis.

Activity Steps

  1. Open the Mapping menu.
  2. Select Add Geological Domain from the Domain field group.
  3. Left-click the 3D image to begin drawing the domain.
  4. Continue left-clicking to create more points around the boundary of the domain.
  5. Right-click the final point to complete the domain.

    The User Defined Domain window displays.

  6. Configure the following options as required.
    • Length – Length (m) that the domain extrudes behind the 3D surface.
    • Dip – Dip (degrees) that the domain extrudes behind the 3D surface.
    • Dip Direction – Dip direction (degrees) that the domain extrudes behind the 3D surface.
  7. Click OK
  8. In the Project Tree, right-click Domains under Geological Model.

    Details of the domain you just created display in the Table View Panel.

  9. Configure the following options in the Table View panel as required.
    • Name – Name of your domain.
    • Colour – Colour of this domain in the Image Viewer.
    • Density – Mass of a substance in kg/m3 that is highly variable in crustal rocks. Rock density is a physical characteristic that is governed by the chemical composition (in situ minerals) and pore spaces of a specific rock or rock type. Default: 2500.
    • Pore Pressure Coefficient – Coefficient to apply to the pressure of groundwater held in gaps between particles (pores) within a rock. Default: 1.

      Note: Density and the pore pressure coefficient are used to calculate Factor of Safety (FoS) of detected unstable features.