Question

How are underground rock extracted?​

Answer 1

Answer:

Typically, long hole mining requires two excavations within the ore at different elevations below surface, (15 m – 30 m apart). Holes are drilled between the two excavations and loaded with explosives. The holes are blasted and the ore is removed from the bottom excavation.

Explanation:

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Answer 2

Answer:

last tabular shaped aur bodies or ore bodies lying more than ( 1000 ) feet 300 m below the surface are Generally mined under ground as well as , the rock is drilled and blasted then moved surface by truck , belt etc