This dashboard aims to provide an overview of the difference between drilling designs and actual drilled collar location. Drill hole location is one of the contributing factors in blast performance related to muck pile presentation (i.e. shape, looseness, movement and heave), and using this dashboard can help identify both isolated events and systemic implementation issues.
Note: This dashboard requires drill actual position information. Drill actuals can be imported to the BlastIQ™ system by file into SHOTPlus™ or by data integration via the BlastIQ™ External API.
Dashboard Components
- Select a Blast – Choose a Blast from the drop down list. Users can type in to search the desired blast.
- Take a Snapshot – Generate a summary Blast report for the selected Blast. To learn more, click here.
- System of Measurement – Choose to display value on Metric or Imperial units.
- Blast Plan View -displaying an area per hole coloured indicating the extent of variation between the actual as-drilled collar position and the original design collar position, with darker shades indicating an increasing magnitude of deviation from design. Both the design and actual as-drilled blast-hole collar positions are shown on this map for comparison. To learn more, click here.
- Mouse Over the holes to get further information.
- Summary Statistics - displays the Blast % Compliance of the blast, plus other helpful statistics.
- Scroll vertically to see all information.
- Scatter Polar Plot - displays the actual blast-hole collar locations relative to their designed position. Click here to learn more about this type of chart.
- Click and drag to zoom in, double click to reset zoom.
- Histogram - displays the blast’s positional deviation distribution, count of holes for each deviation range in the Y axis and the absolute deviation values in the X axis.
- Click and drag horizontally to zoom in, double click to reset zoom.
- When multiple tolerances are used, a stacked histogram will be shown which will indicate how many of a given deviation range are within tolerance
- Box Plot– displays the deviation distribution of the blast. Click here to learn more about this type of chart.
- Click and drag horizontally to zoom in, double click to reset zoom.
- When multiple tolerances are used, the box plot will remain, but no single tolerance will be displayed via tolerance lines or colour gradients.
- Data Table - displaying one hole on each row and columns with information relevant to the drilling position dashboard.
- If using the site level tolerance to evaluate the deviation, the tolerance values will be displayed in italics font. If using hole level tolerances, the values will be un-formatted.
Example with Multiple Tolerances
Calculation Logic
Hole Compliance
Each hole is evaluated based on the following:
Where:
XA and YA : Drill Actual Collar X and Y coordinates.
XD and YD: Design Collar X and Y coordinates.
Positional Deviation is calculated for each hole, hence marking the hole as one of the following:
- Within Tolerance – if the Positional Deviation does not exceed the site’s Drill Collar Position XY Tolerance set in the Admin Portal.
- Exceeding Tolerance – if the Positional Deviation exceeds the site’s Drill Collar Position XY Tolerance set in the Admin Portal.
- Or, No Data – There is not sufficient data to run the analysis. E.g. the hole has a Design Collar Position XY but not a Drill Actual Collar Position XY.
Blast % Compliance
The Blast’s Drilling Position % Compliance is calculated with this formula:
Tolerances
This dashboard accepts the Collar XY Tolerances defined in and exported from SHOTPlus™.
SHOTPlus™ 6 > Edit > Design Data > Edit Tolerances
When no hole type tolerance is specified, the dashboard uses the site level XY Position Reporting Tolerance defined in the Admin Portal.
Any changes to the site level tolerances in the Admin Portal will apply to all single blast dashboards across the site (not previously created reports). To learn more about Reporting Tolerances, click here.