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为研究矸石山内部剖面上不同粒径矸石的分布规律,首先利用因次分析方法,将影响矸石山堆积过程的10个物理力学参数简化为3个无因次量,并依此结果确定实验的相似判据与相似比,进而采用相似模拟方法对矸石山的整个堆积过程进行还原与再现。实验结果表明:矸石山顶部多分布为小粒径矸石,底部多分布大粒径矸石,中部区域由小粒径与中等粒径、中等粒径与大粒径交替发生尖灭而形成倾斜的锯齿状条纹结构;每条条纹存在2个临界角:一个是矸石颗粒能保持稳定的角度,约为24°～26°;另一个是矸石颗粒停止下滑的角度,约为34°～36°。
In order to study the distribution of gangue with different particle sizes in the internal section of gangue hill, the first ten ordinal analysis methods were used to simplify the ten physical and mechanical parameters that affect gangue pile accumulation into three dimensionless quantities. Based on these results, Similarity criterion and similarity ratio, and then use similar simulation method to restore and reproduce the whole pile dumping process. The experimental results show that the top of waste gangue is distributed as small particle size gangue and the bottom is distributed with large size gangue. The middle region consists of small size, medium size, medium size and large size. There are two critical angles for each stripe: one is that the gangue particles can maintain a stable angle of about 24 ° ~ 26 °, and the other is that the angle at which the rock particles stop falling is about 34 ° -36 °.