Volume - Blasthole State Volume

The volume of a hole considering it's design location and parameters. Design volume aligns with BlastIQ™ Design volume.

Design Volume Formula

Design Volume = ((Hole Collar Area + Hole Toe Area)/2) x h

Where:

• Hole Collar Area = A hole's collar area calculated from a voronoi tessellation using design collar coordinates.
• Hole Toe Area = A hole's toe area calculated using a voronoi tessellation using design toe coordinates
• h = Collar Z - Grade Z.
  • If Grade Z = 'null' then h = Collar Z - Toe Z.

The volume of a hole considering the hole best available available information and intended Grade R.L.. Where no measurements are recorded for a hole, the 'Updated Design' for a hole will be equal to the 'Design' volume. Unless otherwise stated 'Updated Design' volume is the default volume used by SHOTPlus™ outside the Volume Overview tool. 'Updated Design' volume aligns with BlastIQ™ Best Available Viable Volume.

Updated Design Volume Formula

Updated Design Volume = ((Hole Collar Area + Hole Toe Area)/2) x h

Where:

• Hole Collar Area = A hole's collar area calculated from a voronoi tessellation using the best available collar coordinates.
• Hole Toe Area = A hole's toe area calculated from a voronoi tessellation using the best available toe coordinates.
  • Best available toe coordinates calculated using:
    • best available collar coordinates.
    • best available angle and bearing.
    • the first (from top to bottom) length available out of:
      • adjusted design length
      • design length
      • drill actual length
      • measured actual length
• h = Collar Z - Grade Z.
  • if Grade Z = 'null', then h = Collar Z - Toe Z.

Best Available

For 'Updated Design' volume calculations 'best available' is considered the first available from:

1. Measured;
2. Drilled; or
3. Designed.

The volume of a hole considering the drilled information. If a hole does not have Drilled information, it will not have a 'Drilled Volume'. 'Drilled Volume' is available in the Volume Overview tool. 'Drilled volume' is not available in BlastIQ™.

Drilled Volume Formula

Drilled Volume = ((Hole Collar Area + Hole Toe Area)/2) x h

Where:

• Hole Collar Area = A hole's collar area calculated from a voronoi tessellation using the best available coordinates.
• Hole Toe Area = A hole's toe area calculated from a voronoi tessellation using the best available toe coordinates.
  • Best available toe coordinates calculated using:
    • Best available collar coordinates
    • Best available angle and bearing
    • Drilled Length
• h = Collar Z - (Toe Z - sub-drill)
  • If 'Include sub-drill in volume calculations' is turned on h = Collar Z - Toe Z.

Best Available

For 'Drilled' volume calculations the 'best available' is considered the first available from:

1. Drilled; or 
2. Designed.