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Coal Prime Source of Energy in India ¾Coal is the most abundant fossil fuel resources in India ¾Coal is the key contributor to the Indian energy scenario ¾55% of the current total commercial energy needs is met by coal ¾By 2024 25 the share of coal would come down marginally to about 50% of

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Advantages of surface mining include economic and financial benefits for miners and communities and a safer alternative to pit mining but its disadvantages include disadvantages of mining deep sand washing machine 9 Most Valid Advantages and Disadvantages of Coal ConnectUS May 27 2024 Between opencast mining Deep Sea Mining

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When an ore body is near the suface open cast mining is the answer If an ore body is deep then one has to sink a shaft which is vastly more costly than open cast mining

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A Abutment In coal mining 1 the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides which act as abutments of the arch of strata spanning the roadway and 2 the weight of the rocks over a longwall face is transferred to the front abutment that is the solid coal ahead of the face and the back

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