Create Single

Use this option to create a single drillhole.

Instructions

On the Open Pit menu, point to Hole Design, then click Create Single.

The panels/prompts displayed depend upon the design method chosen through the Set Up option. The panels/prompts for both methods are described below.

Use surfaces
Input intervals

If you haven't set the default method for designing holes, then the Create Holes panel displays first.

Use surfaces

Indicate the position for the resulting drillhole. Any of the design entry modes can be used.

Once selected, the following panel displays.

Hole Creation panel

Hole creation panel

Dip direction

Enter the dip direction. The dip direction of the holes is a bearing measured in degrees (from North in a clockwise direction) and must be between 0.0° and 360.0°.

Dip

The dip, from horizontal, is also specified in degrees and must be between 0.0° and 90.0°.

Depth of penetration

The depth represents the distance of the hole past the target horizon. If a target horizon has not been specified, then the depth of the penetration will be the absolute depth of the holes.

Minimum drilling length

Enter the minimum drilling length. Any hole with a length less than this will not be created.

Symbols

Select the symbol to be used for the hole locations. You have a choice of square, cross, circle and semicircle.

Hole layer name

Enter the name of the layer in which the holes will be stored.

To create a new layer, enter the layer name. The layer name:

may contain up to 40 characters.
must begin with an alphanumeric character [0-9] or [a-z].
cannot include spaces.
can include hyphens [ - ], plus signs [ + ], underscores [ _ ], periods/dots [.].
can include the special characters of ÁÂÃÀÇÉÊÍÓÔÕÚÜÑ that are used in the Spanish and Portuguese languages.

Select the OK option to create the blasthole.

Input intervals

The following panel displays.

Enter Z value panel

Indicate the position for the resulting drillhole. Any of the design entry modes can be used.

The following panel is then displayed.

Enter interval values panel

Drilling size

Enter the drilling size, For example, PQ, HQ, NQ, etc. The drilling size is only for reporting purposes. The report (if you choose to Report Intervals) contains the drilling size, coordinates at the start of the interval, interval length and the cost (the cost is specified in the Report option). The interval entered on this panel will be applied to the drilling size. The intervals can be defined in one of three ways:

Interval - This to specify the interval as a distance from the previous interval. If there is no previous interval, that is, you are specifying the very first interval, then the distance will be taken from the Z value entered on the Z value panel.
To absolute value - This to specify the interval to an absolute Z value. The previous interval is used as the starting value. If there is no previous interval, that is, you are specifying the very first interval, then the starting value will be the Z value entered on the Z value panel.
From / To - This to specify the starting and finishing Z value.

Diameter

Enter the diameter of the hole.

Select OK.

The panel is then redisplayed, allowing you to specify another drilling size and interval.

Note The Diameter field is not shown when the panel is redisplayed.

Select the Cancel option if you have finished specifying intervals. The following panel is then displayed.