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overhand cut and fill stoping
expl.
上向分层充填采矿法
在采矿中,按分层上向回采矿房、矿块或盘区,每个分层先采出矿石,然后对回采后一分层所需工作空间以外的采空区进行充填的充填采矿法。这种采矿法的工作空间位于矿石顶板下,适用于开采矿石稳固、围岩中等稳固、急倾斜和倾斜的各种厚度和形状的矿体。参见 cut-and-fill stoping
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