科学技术论证。对于克里沃罗格矿区各露天矿上盘和瑞帮的大多数岩石来说,当深度到500m时,露天矿的极限容许帮坡角在60°～70°范围内。该角度随深度加大而减小,只有在深度达1000m和更深时帮坡角才接近于克里沃罗格矿区露天矿永久边帮的帮坡角的设计值,该值接近于破碎硬岩堆的自然堆角(35°～40°)。露天矿下盘边帮的位移和 Scientific and technological demonstration. For most of the open-pit mines and the rocks in the Krivoy Rug Mine, the limit of the open-pit mine allowed the slope angle to be in the range of 60 ° to 70 ° at a depth of 500 m. This angle decreases with increasing depth, and only at depths up to 1000 m and deeper are the slope angles close to the design values ​​of the helix angle for the perimeter edge of the Krivoy Rug open pit mine, which is close to that of the crushed hard rock Heap natural angle (35 ° ~ 40 °). Open-pit mine to help the displacement and displacement