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It depends on the method of extraction. In pit mining, vertical shafts are dug to reach the coal seams, then excavated horizontally. The shafts and passageways need to be shored up or held in place to prevent collapse while the miners extract the coal. In open-cast mining, the surface is simply scraped away by huge excavators, and the coal loaded onto large trucks or long conveyor-belts for processing. Open-cast mining is cheaper - but requires more work to landscape the mining area once the coal is exhausted.
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Why is coal extracted where it is?
Because you cannot extract coal from a mine when youre halfway across the earth.
Who is the person who extract coal from the ground?
a coal miner
Where a coal mine is found?
Coal mine is a found in an ground.
What are the largest coal mines in the world?
black thunder coal mine in us is the largest coal mine in the world
Which is the deepest coal mine in the world?
The deepest coal mine in Europe is Jindřich II Mine in the Rosice-Oslavany coal basin, Czech Republic. The shaft of the mine reached 1550 m while the deepest level coal was mined at was at 1428.4 m. The mine was closed in 1991. It is probably the deepest coal mine in the world.Springhill Mine, near Springhill, Nova Scotia, Canada, is the deepest coal mine in North America. The greatest depth of the Springhill area mines is about 1350 m. The mine was closed in 1958.
Why is coal extracted where it is?
Because you cannot extract coal from a mine when youre halfway across the earth.
Do coal miners mine for coal?
Yes, coal miners mine coal.
Why was the coal mine built?
to mine coal...
Who is the person who extract coal from the ground?
a coal miner
When is coal mine used?
How did they used to coal mine
Why has the cost of coal risen?
There are two reasons for the cost of coal to rise. First, inflation causes the cost of everything to rise. Secondly, in mining, you extract the easiest deposits first, and as they are exhausted, you mine the more difficult deposits, which cost more to extract. People have mined coal for thousands of years, and we are gradually going deeper and deeper.
What was a hurriers job at a coal mine?
The Hurriers job was to whear a harnest and pull coal in a coal mine from one part of the coal mine to another.
Where a coal mine is found?
Coal mine is a found in an ground.
Is coal easy to extract?
Yes coal is easy to extract. Especially surface mining. Underground mining is a little more difficult
What is a coal mine worker?
It is a Miner they go in Mines to mine out coal
What was the relationship between the steam engine and the coal mine?
The steam engine needs coal, the coal comes from the coal mine
What was the purpose of a coal mine?
To get coal.
