露天矿生产环节多且复杂,生产矿石的数量受多种因素的影响,并且呈随机变化。为了保证采矿工作在时间和空间上的相互衔接,避免由于剥离欠量、掘沟落后造成矿石生产中断,国内外露天矿都用不同的形式和数量规定了“储备矿量”。 Open-pit mines produce many and complex links, the number of ore produced by a variety of factors, and showed a random change. In order to ensure the mutual connection of mining work in time and space and avoid the interruption of ore production due to the insufficient amount of stripping and the trenches, the “open pit deposits” are stipulated by different forms and quantities at home and abroad.