Specifying Pit Parameters

You can specify pit parameters for creating the toes and crests that represent the boundaries of the open-pit mine.

These pit parameters provide a high-level description of the terrain and determine whether the shape of the mine geometry you envision is correct and safe. Designing an open-pit mine intervenes in the context of a localized area also referred to as a site.

Before you begin:
  • Adjust the design range and magnitude preference options. See Customizing Preferences.
  • Adjust the contours color preferences. See Toe and Crest Colors.
  • Import Earth Engineering files in an open site or create a site product that contains a terrain and Earth Engineering data.
  • Create a Mine Surface object in the site product. See Creating a Site for Mine 3D Design.
  • Specify the ramp parameters in the Ramp Parameters section of the Pit Parameters dialog box.
See Also
Specifying Ramp Parameters
  1. From the Surface Mine section of the action bar, click Pit Parameters .
  2. From the Benches Parameters section of the Pit Parameters dialog box, click Add to define bench parameters.
  3. Add values for Bench Angle and Berm Width for each bench.
    Notes:
    • The bench angle is the horizontal angle of the line connecting the bench toe to the bench crest.
    • Create as many bench parameters as required for the open pit you envision. You can edit benches and modify the number of benches after creation.
  4. Optional: Click Remove to delete all bench rows in the table.
  5. Expand the Geothechnical Information type section, and specify how the regions within the open-pit model should be colorized and processed.
    OptionDescription
    Default Region everywhere Applies a uniform property to the selected regions.
    Contour-Based Region Applies a property to a region delimited by the contour on a plane.
    Volume-Based Region Applies a property to a region defined by volumes.
  6. Select Contour-Based Region.
  7. In the 3D area, select a support plane for contours in the model.
  8. Adjust the transition distance value. This value helps determining how the wall segments are connected.
  9. Select a contour to each region.
  10. Assign each region with a single bench parameter.
  11. Click the colored square to apply a color.
    The regions are colored accordingly.
  12. Optional: Expand the Ramp Parameters section of the Pit Parameters dialog box, and specify how the ramp should go up.

You classified the regions of interest within the terrain, specifically the edges also referred to as toes and crests to create the shape of the open-pit mine geometry.

A Pit Parameter node that accommodates all parameter-related information is created in the tree.