Create a Drill Plan Based on a Reference Line

Use the Create Drill Plan command to create a gridded drill plan of blast holes (and optionally split holes) along and offset from a reference line. This type of drill plan can be constrained between a start and end station and by a boundary.

Figure: Parts of a line-based drill plan

  1. reference line
  2. boundary
  3. begin station
  4. end station
  5. excluded holes (due to boundary)
  6. excluded holes (due to end station)
  7. holes placed on segment end points
  8. segment end point tolerance
  9. excluded holes (due to segment end point tolerance)
  10. offset spacing (burden)
  11. offset lines to the right
  12. offset lines to the left
  13. along line spacing

Prerequisites:

To access the command:

To create a surface by reference line drill plan:

  1. Select Reference Line in the Drill Plan Type list.
  2. In the Name box, type an identifier for the drill plan as you want it to appear in the Project Explorer and to the DPS900 operator.No other drill plan can use the same name.
  3. Select the surface representing the finished design surface that the drill holes will form in the Design surface list.
  4. If applicable, select the surface (or strata) that represents the top of a rock strata that the drill holes will penetrate in the Rock surface list.
  5. In the Reference line box, pick a 3D line on which the drill plan will be based (as the plan's centerline).
  6. To limit the plan to a specific area, click in the Boundary box and pick the polyline that you want to use as the boundary in the Plan View. Linestrings, polylines, and boundaries can be used for clipping. No blast holes are created outside the boundary.
  7. In th Begin station box, specify the station along the reference line that the starting hole position should be extended from.
  8. In the End station box, specify the station along the reference line that the last hole position should be extended to.
  9. Click the Edit Settings button and specify settings for the drill plan (see Drill Plan Settings for descriptions of the options).
  10. Once you are done specifying settings, click OK. The drill plan appears under Drill Plans in the Project Explorer and the grid of drill holes appears in graphic views.

Dependencies:

  • Drill hole start, design, and rock intersection points are dependent on the original ground, rock, and finished design surfaces. If these surfaces change, the coordinates of drill holes points will update to reflect the change.

Related topics

Create a Drill Plan Manually

Create a Drill Plan Based on a Grid

Create a Drill Plan Based on a Boundary

Create a Drill Plan Based on a Corridor

Edit and Rebuild a Drill Plan

Add a Drill Hole to a Drill Plan