目前,深部露天矿分阶段开采问题具有重要意义。但开采方式是明确的,而开拓问题则未给与足够的重视,在转入新开采阶段时这势必会增加很多费用。因此,当开采急倾斜矿体时,确定开拓与开采方式的关系是重要的问题之一。在急倾斜矿体开采中,将露天坑底布置在矿体中央一直被认为是最佳开采方式。留临时边帮是露天矿分阶段开采的特点,而且,为了保持露天坑底在矿体中央,必须在露天坑周围同时留各种临时边帮。这样,就 At present, the problem of staged mining in deep open pit is of great significance. However, the mode of exploitation is clear and the issue of development has not been given enough attention. This will inevitably increase the costs when it is transferred to the new exploitation stage. Therefore, it is one of the important issues to determine the relationship between exploration and exploitation when mining steep orebodies. In the mining of steep orebodies, placing the bottom of open pit in the center of the ore body has been considered as the best mode of exploitation. The temporary side is to stay in the open-pit mine is characterized by phased mining, and, in order to keep the bottom of the open pit at the center of the ore body, we must stay in the open pit around the same time, a variety of temporary side. That’s it