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Chinese Underground Minining Of Iron Ore

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For 130 years. The methods of iron ore mining are as follows open-pit mining is 90 and underground mining is 10 . Nine mines annually extract almost 15 million tons of ore using the underground method [8–10]. Chamber mining (55 ) and sublevel caving (45 ) are the most popular methods for underground ore mining (Kryvyi Rih iron ore basin.

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