what is Mining?

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Mining is the process to extraction of ore minerals, materials from the earth surface (opencast) or below the surface (underground) economically & profitability. 
                        Open cast Mine

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Advantage and disadvantage of Open Cast (O\C) mines.

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  Advantage and disadvantage of Open Cast (O\C) mines.   A) Advantage of Open Cast (O\C) mines.   Ø Opencast mines are safe as compare Underground mines. Ø There is no problem for roof fails. Ø There is no problem for ventilation, gas emission, explosion, inundation * . Ø There is no need to arraignment artificial lighting during day. Ø High rate of production can achieved as compare as U\G mines and easy to transport the excavated material. Ø  Easy supervision is possible. Ø High mechanized is possible. Ø Full extraction is possible no mineral is blocked in shaft, pillar, barrier, support of main roadway etc.   Note: - Inundation means sudden inrush of water.   B)   Disadvantage of Open Cast (O\C) mines.   Ø Work affected by weather, climate most in Rainy season. Ø To reach ore deposit large amount of overburden required to excavate and dump inside lease area of mines. Ø There is environmental pro...
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