What is the main concern when driving headings in swelling ground?
A. High ore loss
B. Air leakage
C. Ground pressure and convergence
D. Equipment breakdown
Answer: Option C
Solution (By Examveda Team)
Swelling ground expands upon exposure to air or water.The correct answer is: Ground pressure and convergenceThis can squeeze supports and close tunnels.Requires strong supports and regular re-bolting.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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What is the primary purpose of mine development?
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B. Ventilation planning
C. Accessing ore body
D. Waste disposal
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D. Raise
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Which of the following is not an underground mining method?
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