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本文从东川面山现用分段空场采矿法所存在的问题——高贫损、低效率、不安全——出发,论证了连续分段空场采矿法的特点,并用正交放矿模拟试验设计方法来安排物理模型试验。对所取得具有代表性的数据和试验结果,进行分析、优选出为工业试验设计和生产应采取的合理采场结构参数的推荐值,和回贫指标的预报值。对该矿新采矿方法的设计、生产具有积极地指导作用。
Based on the problems existing in the mining method of the current sub-section mining in Dongchuanmian Mountain-high loss, low efficiency and unsafeness, this paper demonstrates the characteristics of the continuous sub-step mining method, Experiment design method to arrange physical model test. The representative data and test results obtained are analyzed, the recommended values of reasonable stope structure parameters for the design and production of industrial experiments are selected, and the forecast values of the poverty reduction targets are optimized. The new mining method of the mine design, production has a positive guiding role.