露天矿下采速度是决定露天开采效率的主要采矿参数之一。当下采速度成为采矿生产能力的限制因素时,问题就显得特别突出。目前在扎纳塔斯矿出现了这种情况,由于一系列原因使有效采矿工作线长度短于设计值,按露天矿长度划分的和有独立开拓系统的每个采区的实际回采储量减少了。 Open pit mining speed is one of the main mining parameters that determine the efficiency of open pit mining. When the current mining rate has become the limiting factor of mining production capacity, the problem is particularly prominent. The current situation at the Zanassas mine is that the effective mining line length is shorter than the design value due to a number of reasons and that the actual recovery of reserves per mining area separated by the length of the open pit and independently developed is reduced .