Kamis, 17 Oktober 2013

MINE PLAN

open pit mine
Open-pit mine
Type of mining that is used for shallow deposits; coal or ore is extracted by digging a succession of benches from the surface of the ground downward.
Crater
Depression that forms the bottom of the quarry; it is a result of the extraction of deposits.
Haulage road
Access road leading to the quarry; it is used to haul coal to the treatment plant.
Ore
Solid fossil fuel that is black and contains a large amount of carbon.
Bench height
Vertical distance between the horizontal planes of two benches.
Ramp
Roadway between two benches; it is inclined so that motorized vehicles can remove the ore extracted from the various levels.
Overburden
Part of the ground that covers the ore beds; it is removed to reach the deposit.
Ground surface
The land that covers the deposit.
Face
Vertical surface created by dynamiting a deposit to extract its ore.
Bench
The levels of a quarry that are arranged like steps of a staircase and from which coal or ore is extracted.
strip-mine

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