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Geological conditions of the earth surface or UG surface decide where we mined coal. And also depth or thickness of coal seam.
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How do you mine coal?
Coal is mined by two methods: surface or 'opencast' mining or underground or 'deep' mining.The choice of mining method largely depends on the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common.
What are two ways to mine coal?
Coal is mined by two methods: surface or 'opencast' mining or underground or 'deep' mining.The choice of mining method largely depends on the geology of the coal deposit. Underground mining currently accounts for a bigger share of world coal production than opencast; although in several important coal producing countries surface mining is more common.
Where is coal dug?
Coal is primarily dug from underground mines. These mines are typically located in coal-rich regions and are accessed by tunnels and shafts. Surface mining methods, such as strip mining or mountaintop removal, may also be used in areas where the coal seam is close to the surface.
What is a bony pile?
A Bony Pile was the waste from an underground coal mine. Piled up over time (decades) the pressure was enough to ignite the coal mixed with waste. What you got was a steaming and sulfur discharge on the surface.
Where is coal deposited?
Coal is deposited usually in layers, underground, sometimes fairly close to the surface.
What is a coal mine?
A coal mine is a place where coal is dug out of the earth. Some mines are completely underground and depend on tunnels to take miners to the coal. Other places, known as strip mines, are open pits in the ground where the coal is dug out.
What does the FAMUR Group do?
The FAMUR Group is a producer of machines and equipment for underground mining. It specializes in complete automation of the hard coal extraction process using the long wall mining method, as well as in designing and manufacturing supervising control systems of underground exploitation of coal from the face to mine surface.
Can one use mining machinery to dig deep within the earth?
Surface mining can be used when the coal is buried less than 200 feet underground. ... is buried deep within the earth. Some underground ... mine shafts to run machines that dig out the coal. ... In one place, coal is crushed, mixed with water, ... industries use coal, too. Paper, brick, limestone, and
What mine starts near the surface and extends deep underground?
The type of mine is called a strip mine.
What has the author M L Poe written?
M. L Poe has written: 'Surface coal mine sedimentation pond assessment' 'Are surface coal mine sediment ponds working?'
What are two types of coal mining?
Surface mining is used to produce most of the coal because it is less expensive than underground mining. Surface mining can be used when the coal is buried less than 200 feet underground.In surface mining, giant machines remove the top soil and layers of rock known as "overburden" to expose the coal seam. Once the mining is finished, the dirt and rock are returned to the pit, the topsoil is replaced, and the area is replanted.Underground mining, sometimes called deep mining, is used when the coal is buried several hundred feet below the surface. Some underground mines are 1,000 feet deep. To remove coal in these underground mines, miners ride elevators down deep mine shafts where they run machines that dig out the coal.
What process is used to mine coal underground?
Underground mines consist of a series of parallel and interconnecting tunnels from which the coal is cut and removed with special machinery. The process is complex and sometimes dangerous.
