露天排土场形成的控制因素与物料分异规律研究

发布时间：2018-04-22 14:41

本文选题：排土场 + 锥状体　；参考：《金属矿山》2017年01期

【摘要】：排土场的形成是一个复杂的过程,是无数个废石"锥状体"在多种因素下共同控制下的结果。通过级配分析、粒度统计、分形统计等技术手段,分析了控制排土场形成过程中自然分选、填充作用、侧向分散作用、干涉作用、地基坡度等影响因素,研究了排土场形成演化过程中的物料分异规律。研究表明:自然分选、填充作用、侧向分散作用、干涉作用控制了排土场物料分异,而地基坡度、倾倒高度、物料丰富程度控制了废石"锥状体"结构体的形态。另外,排土场在滚动、跳跃或滑动过程中会存在粒度分异、分形分异、长轴分异、厚度分异等物料分异现象,其形成演化规律控制了物料分异规律。研究结果对研究排土场变形、破坏、滑坡、泥石流、滚石等灾害可提供一定的理论依据。
[Abstract]:The formation of dump is a complicated process, which is the result of the control of numerous waste rock "cones" under the control of many factors. By means of gradation analysis, particle size statistics, fractal statistics and other technical means, this paper analyzes the influence factors such as natural sorting, filling, lateral dispersion, interference, foundation slope and so on in the process of controlling the formation of dump. The law of material differentiation in the process of formation and evolution of dump is studied. The results show that natural sorting, filling, lateral dispersion and interference control the material differentiation of the dump, while the slope of the foundation, the height of dumping and the abundance of materials control the shape of the "cone" structure of the waste rock. In addition, in the process of rolling, jumping or sliding, there will be particle size differentiation, fractal differentiation, long axis differentiation, thickness differentiation and other material differentiation phenomena in the dump. The law of formation and evolution controls the law of material differentiation. The results can provide some theoretical basis for the study of deformation, destruction, landslide, debris flow, rolling stone and other disasters in dump.
【作者单位】：华北理工大学矿业工程学院;
【基金】：河北省自然科学基金项目(编号:D2011209071,E2013209328) 唐山市科技计划项目(编号:14130245B)
【分类号】：TD854.7

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