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Suggested Citation:"UNDERGROUND COAL MINING TECHNOLOGY." National Research Council. 1978. Coal Mining. Washington, DC: The National Academies Press. doi: /18766.
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Roof bolting is also a common application in underground coal mines for securing mine roofs to be selfsupportive. It is extremely dangerous as an occupation, accounting for nearly 56 percent of injuries in underground coal mining operations. According to law, all underground coal mine entries must be roof bolted.
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Operate machinery to install roof support bolts in underground mine.
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