Tian Zhen-lin
Abstract
During caving the hard thick coal seam,the weakening treatment of top coal is a key problem influencing the comprehensive benefits of coal mine.The paper discusses the method and related technology of weakening treatment of top coal,especially describes the blast weakening technology.
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During caving the hard thick coal seam,the weakening treatment of top coal is a key problem influencing the comprehensive benefits of coal mine.The paper discusses the method and related technology of weakening treatment of top coal,especially describes the blast weakening technology.
Key concepts: Coal, Mining engineering, Engineering, Hard coal, Coal mining, Petroleum engineering, Waste management