How do you calculate volume of a blast?
How do you calculate volume of a blast?
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- BH + SD. Charge length (C) =
- L – SL. Blast volume (V) =
- B x S x BH x N. Blasted tonnes (T) =
- V x Density of rock in t/m3. Volume of blasthole (Vb) =
- π x D2/4000 x L.
- PF (kg/m3) =
- blasted (for kg/Tonne, divided by blasted tonnes T)
- AWS of explosive/AWS of ANFO x 100.
What does a blast crew do?
Supporting the drill and blast team, you will be required to prime and load blast holes, mark up drill patterns, check drilling depths as well as various other activities associated with the safe and secure blasting operations on site.
What is powder factor in blasting?
The POWDER FACTOR is a relationship between how much rock is broken and how much explosive is used to break it. Powder factor can be expressed as a quantity of rock broken by a unit weight of explosives. Or, alternatively, it can be the amount of explosives required to break a unit measure of rock.
Why learn open pit drill and blast?
Drill and blast designs are crucial for downstream mining success. Knowing how to layout and load blast holes, run blast reports, edit holes, and adjust explosive tie-ins will help you create effective designs and increase blast accuracy and blast safety. Register for Open Pit Drill and Blast to learn:
How do you design a blast hole?
Construct hole templates with design parameters such as fixed or variable collar or toe spacing, angle changes and variable toe horizons. Audit drill patterns against blast hole distribution and location constraints.
How easy is it to adopt the drill and blast system?
You will be able to easily adopt the system as its intuitive tool-sets are designed specifically by Drill and Blast Engineers, for Drill and Blast Engineers. The design module features specific CAD tools and automatic hole projections to help you spend a lot less time designing, and more time optimising.
How do you design a drill hole?
Intuitive layout of drillholes considers previous design and geological structures. Rapidly generate drill patterns using pre-defined hole templates then manually adjust as required to final design. Construct hole templates with design parameters such as fixed or variable collar or toe spacing, angle changes and variable toe horizons.
