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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Predictability of pothole characteristics and their spatial distribution at Rustenburg Platinum Mine
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Predictability of pothole characteristics and their spatial distribution at Rustenburg Platinum Mine

机译：勒斯滕堡白金矿坑洼特征的可预测性及其空间分布

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Prediction of pothole characteristics is a challenging task, confronting production geologists at the platinum mines of the Bushveld Complex. The frequency, distribution, size, shape, severity and relationship (FDS~3R) of potholes has a huge impact on mine planning and scheduling, and consequently cost. It is with this in mind that this study was initiated. Quantitative analysis of potholes indicates that pothole size (area covered) can be described by two partly overlapping lognormal distributions. These are referred to as Populations A (smaller) and B (larger). The range ol observed pothole sizes conforms to a simple double exponential growth model based on Newton's Cooling Curve. A third size range of very large potholes (Population C) that could not be modelled properly within the proposed growth model is interpreted as to represent a very early phase of aggressive regional thermo chemical erosion and potholing.
机译：在Bushveld Complex铂金矿中，预测坑洼特征是一项艰巨的任务。坑洞的发生频率，分布，大小，形状，严重性和相关性（FDS〜3R）对矿山的计划和调度有很大的影响，因此成本也很高。考虑到这一点，开始了这项研究。坑洞的定量分析表明，坑洞的大小（覆盖面积）可以用两个部分重叠的对数正态分布来描述。这些被称为总体A（较小）和B（较大）。观察到的坑洞尺寸的范围符合基于牛顿冷却曲线的简单双指数增长模型。无法在建议的增长模型中正确建模的非常大的坑洞（人口C）的第三个大小范围被解释为代表了区域性热化学侵蚀和坑洼侵蚀的早期阶段。

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