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The two methods used for mining coal are surface mining and underground mining. Surface mining involves removing layers of soil and rock to access coal deposits near the surface, while underground mining involves tunneling underground to extract coal from deeper deposits.
Open cast and mining are the 2 used
The two methods used to mine coal are surface mining and underground mining. Surface mining involves removing topsoil and rock layers to access coal deposits near the surface, while underground mining involves tunneling deep beneath the ground to extract coal deposits.
Coal is typically mined using two methods: surface mining and underground mining. Surface mining, which includes strip mining and mountaintop removal, involves removing the topsoil and rock layers to reach the coal seam. Underground mining involves digging shafts and tunnels to access coal seams deep underground.
Coal is removed from the earth through a process called mining. There are two main methods of coal mining: surface mining and underground mining. In surface mining, large machines remove the topsoil and rock layers to access the coal deposits, while in underground mining, tunnels are dug deep into the earth to reach the coal seams.
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.
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.
miners take machines for underground miningthey use three types of mines : lope, slope,and shaftthis is very helpful info
The two commonest methods are deep pit mining or open cast mining. With deep=pit mining, shafts are dug vertically downwards, then tunnels excavated horizontally to extract the coal. With open-cast mining, the top-soil is simply scraped away, using large excavators, and the coal is transported away tpo be processed.
Coal is extracted in two methods. One is by digging tunnels into the earth and following the vein of coal, removing it by rail cart. The other is strip mining where they remove the earth above the coal and dig down to it. This way usually involves the removal of entire mountain tops to get at the coal. Recently however they have started to replant the vegetation when they are done to reclaim the land back to a natural state.
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.
Two common methods used to remove rocks and minerals from the ground are surface mining, where machinery is used to extract materials from the surface, and underground mining, where tunnels are dug to access deposits deep underground. Both methods have different environmental impacts and safety considerations.