引言本文论述怎样计算典型大储量露天矿的最优边界品位。示例中假定选厂的处理矿量不变、且不受销路限制。采矿量假定是可变的,这通常是生产矿区的情况。 Introduction This article discusses how to calculate the optimal boundary grade for a typical large open pit mine. In the example, it is assumed that the processing capacity of the mill is unchanged and not subject to sales restrictions. The amount of mining is assumed to be variable, which is usually the case for the production of mines.