摘要
大型露天煤矿的煤炭损失主要是端帮压煤形成的"呆滞煤".通过对露天矿端帮"呆滞煤"形成过程的阐释,结合露天开采技术现状和发展形势,对露天煤矿端帮"呆滞煤"回采的可行性进行了深入分析,建立了露天矿端帮"呆滞煤"回采的经济评价模型,并由此得出露天矿端帮"呆滞煤"回采的经济效益与产量、静态吨煤投资额呈正向变化,与其他可变费用呈反方向变化.结果表明:采用下部推进的"端帮靠帮开采技术"对露天矿端帮"呆滞煤"进行回采可以提高煤炭资源回采量,经济效益显著.
The coal loss is mainly induced by＂dull coal＂ which is pressed by end-slope.Through explaining the formation progress of dull coal,combined the status and development of surface mining technology,we analyzed the feasibility of mining dull coal.In light of building the economical evaluation model of mining dull coal,the economic benefit increased when the production and static investment per ton coal added and decreased when other variable fees added.The result shows that the method of mining dull coal can increase the recovery rate by the steep end-slope mining technology and the economic benefit of which is significant.
出处
《采矿与安全工程学报》
EI
北大核心
2011年第2期263-266,272,共5页
Journal of Mining & Safety Engineering
基金
国家“十一五”科技支撑计划项目(2006BAB16B00)
国家自然科学基金重点项目(51034005)
煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM10X01)
中央高校基本科研业务费专项资金项目(2010QNA33)
关键词
露天煤矿
端帮
呆滞煤
可行性
surface coal mine
end-slope
leftover coal
feasibility
