Q156
Which mining method uses a mobile platform to excavate raises?
A.
Raise boring
B.
Sublevel caving
C.
Alimak raising
AnswerD.
Vertical crater retreat
Answer: Option C
Solution
Answer: Option C
Solution:
Alimak raising uses a mechanized raise climber to excavate vertical openings.The correct answer is: Alimak raisingAllows work from a safe platform.Common in ventilation and manway raises.