北乌拉尔铝土矿已经开采40多年。在这期间,由于扩大了矿山工作线,推广了新的开采方法和采取了保护矿井不被地下水淹没的措施,使得矿山生产能力不断增加。计划通过进一步采用高效采矿方法,降低矿山基建和采准掘进费用以及提高劳动生产率,来扩大铝土矿开采。鉴于选择某种采矿方法要依据两个主要因 Northern Ural bauxite has been mined for more than 40 years. During this period, mine production capacity continued to increase as a result of the expansion of the mine line, the introduction of new mining methods and measures to protect mines from being inundated by groundwater. The plan is to expand bauxite mining by further adopting efficient mining methods, reducing mining infrastructure and adopting and driving costs, as well as improving labor productivity. Given the choice of a mining method depends on two main factors