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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >The evaluation of rock brittleness concept on rotary blast hole drills
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The evaluation of rock brittleness concept on rotary blast hole drills

机译：旋转爆破钻头岩石脆性概念的评价

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摘要

The rock brittleness is one of the most important rock properties that affect the drill-ability of rocks. It is supposed that the increase in rock brittleness causes the increase in penetration rate.The drill-ability of rocks depends on many factors. These factors can be separated as two parts depending on a machine, bit type, rotational speed, thrust, blow frequency, flushing, and rock properties, brittleness, compressive strength, structure, hardness, etc. In this paper, the relationship between brittleness and drill-ability index, which is used in the prediction analysis of the penetration rate of rotary blast hole drills, were examined using regression analysis. It is also seen that significant correlations exist between brittleness and the drill-ability index.
机译：岩石脆性是影响岩石可钻性的最重要的岩石性质之一。据推测，岩石脆性的增加会导致渗透率的增加。岩石的可钻性取决于许多因素。根据机器的不同，这些因素可分为两部分，钻头类型，转速，推力，吹气频率，冲洗和岩石特性，脆性，抗压强度，结构，硬度等。在本文中，脆性与使用回归分析检查了用于爆破孔钻头穿透率预测分析的可钻性指数。还可以看出，脆性和可钻性指数之间存在显着的相关性。

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