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File: E6 37 06 02
CIVIL ENGINEERING – Vol. II - Underground Mining Methods and Equipment - S. Okubo and J. Yamatomi UNDERGROUND MINING METHODS AND EQUIPMENT S. Okubo and J. Yamatomi University of Tokyo ...

icon picture PDF Filetype PDF | Posted on 14 Feb 2023 | 1 year ago
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...Civil engineering vol ii underground mining methods and equipment s okubo j yamatomi university of tokyo japan keywords method room pillar sublevel stoping cut fill longwall caving block backfill support ventilation machinery excavation cutting drilling loading hauling contents classification operations in general glossary bibliography biographical sketches summary the first section gives an overview practices as used commonly mines including brief explanations techniques second describes with particular focus on such boomheaders coal cutters continuous miners shearers unesco eolss sample chapters mineral production which all extracting are conducted beneath ground surface is termed usually employed when depth deposit or waste to ore ratio stripping too great commence a operation once economic feasibility has been verified most appropriate must be selected according natural geological conditions spatial geometric characteristics deposits considerations include concerned shape size thic...
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