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本文根据岩石的力学特性和阶段自然崩落法矿体拉底后力学发展过程的特点,提出了在岩体变形、破坏、崩落和放矿过程中,矿石不仅具有从尺寸上由大变小的趋势,还具有从形状上由不均匀向比较均匀过渡的趋势的假设,以及放矿口矿石的平均块度主要受最密集一组软弱节理的法向平均间距控制的假设.介绍了这两个假设在国内外矿山实践中初步验证的情况。
According to the mechanical characteristics of rock and the characteristics of mechanical development process after the bottom caving of the body during the stage of caving, the paper proposed that in the process of deformation, destruction, caving and ore drawing, the ore not only has the trend of decreasing from large to small, , With the assumption of a trend toward a more uniform transition from the non-uniform shape and the assumption that the average block size of the ore at the ore discharge is dominated by the normalized mean spacing of the most densely packed set of weak joints.These two hypotheses In the practice of mining at home and abroad preliminary verification of the situation.