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A Principal Component Analysis/Fuzzy Comprehensive Evaluation for Rockburst Potential in Kimberlite

机译：金伯拉特岩爆潜力的主要成分分析/模糊综合评价

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摘要

Kimberlite is an igneous rock which sometimes bears diamonds. Most of the diamonds mined in the world today are found in kimberlite ores. Burst potential in kimberlite has not been investigated, because kimberlite is mostly mined using open-pit mining, which poses very little threat of rock bursting. However, as the mining depth keeps increasing, the mines convert to underground mining methods, which can pose a threat of rock bursting in kimberlite. This paper focuses on the burst potential of kimberlite at a diamond mine in northern Canada. A combined model with the methods of principal component analysis (PCA) and fuzzy comprehensive evaluation (FCE) is developed to process data from 12 different locations in kimberlite pipes. Based on calculated 12 fuzzy evaluation vectors, 8 locations show a moderate burst potential, 2 locations show no burst potential, and 2 locations show strong and violent burst potential, respectively. Using statistical principles, a Mahalanobis distance is adopted to build a comprehensive fuzzy evaluation vector for the whole mine and the final evaluation for burst potential is moderate, which is verified by a practical rockbursting situation at mine site.
机译：金伯利特是一块火岩，有时有时会带钻石。今天在世界上开采的大多数钻石都被发现在金伯利特矿石中。 Kimberlite中的爆发潜力尚未被调查，因为金伯利特大多使用露天挖掘，这造成了很少的岩石爆裂威胁。然而，随着采矿深度不断增加，地雷转换为地下采矿方法，这可能会在金伯利岩中造成岩石爆裂的威胁。本文重点介绍了加拿大北部钻石矿的金伯利特的爆发潜力。开发了一种具有主成分分析（PCA）和模糊综合评估（FCE）的组合模型，以从金伯拉特管道中的12个不​​同地点处理数据。基于计算的12个模糊评估载体，8个位置显示中等突发电位，2个位置显示没有突发电位，2个位置分别显示出强烈突发的爆发潜力。采用统计原则，采用Mahalanobis距离为整个矿井构建一个全面的模糊评价载体，爆发潜力的最终评估是中等的，这是通过矿山的实际摇滚局势验证。

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