Excavation Test2 part1

  1. Priming

    A primer is________

    The resulting detonation will______

    A primer contains an _____ unlike a booster____
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  2. Properties of Primers (4)
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  3. Detonation Velocity
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  4. Primer Diameter
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  5. Water Resistance
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  6. Detonation energy
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  7. Types Of Primer (3)
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  8. Bottom Priming (4)
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  9. Multiple Priming
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  10. Primer Selection Guidelines (4)
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  11. Conditions that may influence the selection of an initiation system. (4)
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  12. Parameters to be considered in understanding the fragmentation process:
    -
    -
    -
    -
    -
    - +5
    -
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  13. Time events for rock breakage: (4)
    • Detonation Phase
    • Shock or stress wave propgation
    • Gas pressure expansion phase
    • Rock mass movement phase
  14. Optimum explosive performance
    three factors to be considered
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  15. Burden
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  16. Bench Height

    Determind by: 4

    -

    -
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  17. Bench Height Burden Relationship
    4
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  18. Spacing
    4
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  19. Subdrilling

    equation + 5
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  20. Stemming
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  21. Types of blasting cuts (3+2)
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  22. Blasthole Pattern Configurations (4 + 1)
    • Regular Square B=S
    • Staggered Square B=S
    • Regular rectangle B<S
    • Staggered Rectangle B<S

    Optimum pattern ==> S = 1.15B
Author
athoms
ID
112089
Card Set
Excavation Test2 part1
Description
Excavation Test 2 part1
Updated