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露天排土场中废石堆岩石粒度分布特征是影响排土场稳定性的重要因素。对借鉴了爆堆岩块块度分布研究方法,运用mapgis地质制图软件对废石堆图像进行处理,对所得相关数据通过频率分布函数曲线进行分析。研究表明,自然堆积的废石堆中岩石粒度分布存在一个分界粒度,大于或小于分界粒度的岩石所占比例随废石堆高度的增加而减少或增多。根据粒度频率分布曲线可将废石堆分成不同的组合模式,每个组合模式具有不同级配。
The characteristics of rock particle size distribution in open dump are an important factor affecting the stability of dump. Based on the study of the block distribution of the explosive stacks, the mapgis geological mapping software is used to process the image of the waste rock pile, and the correlation data are analyzed through the frequency distribution function curve. The study shows that there is a demarcation particle size distribution in the naturally stacked waste rock heap, and the proportion of rocks larger or smaller than the demarcation size decreases or increases with the increase of the heap height. According to the particle size distribution curve, the waste rock heap can be divided into different combination modes, and each combination mode has different gradation.