Edit Holes

Edit Hole Attributes

Use the Edit Holes option to edit the attributes of existing Drill and Blast holes.

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Instructions

On the Drill and Blast menu, point to Edit, then click Edit Holes.

The Select hole(s) by dialog box is then displayed.

Using the displayed dialog box, nominate a method by which to select the holes. You have the choice of selecting by hole, by row or by echelon. Use the All Holes option to edit all of the holes from a particular blast.

Once chosen, the following panel displays.

Name

This displays the name of the blast hole that has been selected. This field cannot be edited because it is a display field only.

Row

This displays the row in which the blast hole is located. This field cannot be edited because it is a display field only.

Collar

Click the icon to display the Hole Collar panel.

Hole Collar Position

• Surface - Select the surface triangulation from the drop-down if the surface is stored in the current working directory, or click Browse to search for it if it is stored in another directory.

• Enter RL - Enter the elevation level.

Intervals

• Interval End - Click the icon to display the Define end of interval panel.

  

  • Constant level - Enter an elevation level.

  • Down hole depth - Enter a hole depth.

  • Surface model - Select a surface triangulation from the drop-down if the surface is stored in the current working directory, or click Browse to search for one that is stored in another directory.

  • and bench level - Select this option if the hole is limited to a certain bench level, then enter the bench level.

• Rock Type - Enter a rock type if you want to use it as a limiting boundary to the interval length.

• Density - Enter a density if you want to use it as a limiting boundary to the interval length.

  Note:  All conditions must be met for the interval to be set.

Dip

Enter the dip angle of the blast hole.

Bearing

Enter the bearing of the blast hole.

Subdrill Method

Select the subdrill method from the drop-down list.

• Vertical calculation - Target horizon minus subdrill depth (vertically).

• Vertical surface intercept - Target horizon adjusted vertically by subdrill depth.

• Along hole vector calculation - Target horizon minus subdrill depth (along hole vector).

Subdrill

Enter the depth below the target floor or grade elevation of your bench.

Hole honouring mode

Use the drop-down list to select either Vector or Location mode.

• Vector - The bearing and dip vectors are maintained, and the position can change. In this case, the processing is always forced as if the hole were built from top to bottom (in other words, the collar's position dictates the process). If a subdrill is added, it sticks to the toe, and the toe changes position to keep the vector fixed.

• Location - The position is maintained (depending on whether the hole is drilled from top to bottom or bottom to top), although the bearing/dip vector can change.

Minimum Length

This is the minimum length for an interval.

Drill Rig

Select the drill rig from teh drop-down list. This list is generated from the Drill Rig Library.

Loading Style

Select the loading style from the drop-down list.

Display Attributes

Click the icon to display the Display Attributes panel.

Note:  Refer to Drill and Blast > Edit > Edit Display Attributes for information.

Charge Depth

Click the icon to display the Design Charge Depth Intercept panel.

Select one of the following options:

• Constant level - Enter the elevation depth.

• Down hole depth - Enter the down-hole distance from the collar.

• Surface model - Select the surface triangulation from the drop-down list.

• No intercept - Default setting of no depth intercept.

When you have completed the edits in the table, click OK. The changes will be applied and the blast updated.