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Underground hard-rock mining

Underground hard-rock mining refers to various underground mining techniques used to excavate "hard" minerals, usually those containing metals, such as ore containing gold, silver, iron, copper, zinc, nickel, tin, and lead. It also involves the same techniques used to excavate ores of gems, such as diamonds and rubies. Soft-rock mining refers to the…

Methods, Deepest mines & Ore removal

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Overview

Mine access

Development mining vs. production mining

Ventilation

Ground support

Stope and retreat vs. stope and fill

Methods

Ore removal

Deepest mines

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Map overview Semantic statistics

Underground hard-rock mining

Nodes109
Edges108
Triples7
Avg. degree1.98
Density0.018349
Components1

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Important terminology Word statistics

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Important terminology

ore mining rock used mine shaft support mines method deepest bolt fill stope hard grouted underground surface orebody rebar cut

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
a gold mine in the Witwatersrandinstance ofThe orebody can be narrow vein0.80text
the orebody can be massive similar to the Olympic Dam mineinstance ofThe orebody can be narrow vein0.80text
South Australiainstance ofThe orebody can be narrow vein0.80text
or Cadia-Ridgeway Mineinstance ofThe orebody can be narrow vein0.80text
New South Walesinstance ofThe orebody can be narrow vein0.80text
those at the Climaxinstance ofthe ground surface may collapse into a surface depression0.80text
Henderson molybdenum mines in Coloradoinstance ofthe ground surface may collapse into a surface depression0.80text

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