【摘要】 将块体理论应用到金属矿山关键块体的辨识,用来解决金属矿矿体覆岩破坏与移动规律。在分析了可动块体的受力情况和块体运动的3种模式的基础上,推导出了在3种运动模式下块体的净滑动力,从而为辨识关键块体提供了理论依据。随后结合某矿山实例,分析可动块体的受力特征,找出了控制采空区稳定性的关键块体,为保证采空区的稳定性和控制地表塌陷提供了重要的理论依据。更多还原

【Abstract】 The block theory is applied in the key block identification in metal mines to find out the law of the orebody overburden destruction and movement.Based on the analysis of the stress of movable blocks and the three patterns of block motion, a net sliding force is deduced as the theoretical basis for the identification of key blocks.In combination with a real case,the movable blocks in the mine are analyzed and the key blocks for controlling the stability of the mined area are identified,thus ensuring the stability of the mined-out area and providing an important theoretical basis for controlling the ground surface subsidence.更多还原