Raise Boring Machine Operation

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Questions and Answers

What is the primary purpose of the protective canopy in the Alimak raise development system?

  • To ventilate the excavation area
  • To shield the personnel from blasting damage (correct)
  • To provide a stable platform for drilling
  • To protect the drill deck from rockfall

In the Alimak raise development system, what is the sequence of the production steps?

  • Drill, charge, blast, ventilate, scale (correct)
  • Scale, charge, drill, blast, ventilate
  • Ventilate, scale, drill, charge, blast
  • Scale, drill, charge, blast, ventilate

What is the purpose of the monorail in the Alimak raise development system?

  • To remove the broken ore from the excavation (correct)
  • To provide a stable platform for blasting
  • To transport personnel and equipment
  • To install the drill deck on top of the raise climber

What is an adit used for in underground hard rock mining?

<p>To access orebodies located near or above the access floor (B)</p> Signup and view all the answers

What is the purpose of the drive-toothed section on the monorail in the Alimak raise development system?

<p>To drive the monorail into the excavation (C)</p> Signup and view all the answers

What is the primary purpose of the Alimak climber in the Alimak raise development system?

<p>To protect the personnel during blasting (A)</p> Signup and view all the answers

What is the purpose of the air/water blast in the Alimak raise development system?

<p>To dislodge loose rock from the freshly blasted face (B)</p> Signup and view all the answers

In the Alimak raise development system, what is the purpose of the charging-up step?

<p>To charge the holes with explosives (A)</p> Signup and view all the answers

What is the advantage of the Alimak system in terms of post-blast ventilation?

<p>It provides a powerful and efficient ventilation process (A)</p> Signup and view all the answers

What is the typical location of an adit in underground hard rock mining?

<p>Near or above the access floor (B)</p> Signup and view all the answers

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