前言随着低品位矿床的开采,露天矿开采技术日趋完善。为了获得理想的投资收益效果,在过去十年中,已进行了更加详细和精确的设计。影响露天矿作业的成功,有许多变量因素,它们包括矿石品位、金属价格、研究费、建设费、矿山设计和生产费。随着露天矿规模增加到914.1米(3000英尺)深度, Preface With the exploitation of low grade deposits, the open pit mining technology is maturing. In order to achieve the desired return on investment, a more detailed and accurate design has been conducted over the past decade. There are many variables that affect the success of an open pit operation, including ore grade, metal price, research fee, construction fee, mine design and production costs. With the open pit scale increasing to a depth of 914.1 meters (3000 feet)