摘要
对急倾斜薄矿脉机械化开采进行论述,阐明用上部矿块“假底”为下部矿块“假顶”的平底式漏斗出矿的底部结构是一种新型的底部结构,降低损失,贫化率,提高出矿能力和回采率,增加经济效益.
This paper has made a description of a new type structure of bottom, in which, the cut-out layer is level with transport drift and funnels are errected to run ores, So the false roof of the lower ore block becomes the false bottom of upper block. By this way, it is justfied in reducing ore dilution, raising stoping capacity and increasing economic benefit in the mechanized mining of steep narrow veins.
出处
《黄金》
CAS
北大核心
1990年第2期8-13,共6页
Gold
关键词
急倾斜矿层
充填采矿
底部结构
Steep narrow vein
mechanized mining
improvement of bottom structure
