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首页> 外文期刊>Tunnelling and underground space technology >The influences of textural parameters of grains on the LCPC abrasivity of coarse-grained igneous rocks
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The influences of textural parameters of grains on the LCPC abrasivity of coarse-grained igneous rocks

机译：晶粒结构参数对粗粒火成岩LCPC磨蚀性的影响

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摘要

Rock abrasivity causes the tool wear in rock excavation or drilling. The understanding of wear mechanism is important for the cost estimation and planning of projects. In this study, the effects of textural properties of grains such as aspect ratio, roundness, and diameter on the LCPC abrasivity coefficient (LAC) were investigated for coarse-grained igneous rocks. First, the LAC was correlated to the abrasive mineral content (AMC) and a good correlation was found between the two parameters. Then, the LAC was correlated to the AMC multiplied by the textural properties of grains, respectively. Compared to the correlation coefficient of the relation between the LAC and the AMC, the correlation coefficient was increased by including the textural properties of grains to the correlation. A combined parameter called shape and size coefficient (SSC) was defined in order to see the combined effect of the textural properties of grains on the LAC. The correlation coefficient of the relation between the LAC and the AMC multiplied by the SSC is very strong and fairly higher than that of the previous correlations derived. It can be concluded that the textural properties of loosened materials have a strong influence on the tool wear. (C) 2016 Elsevier Ltd. All rights reserved.
机译：岩石的磨蚀性会导致工具在岩石开挖或钻孔中的磨损。了解磨损机理对于项目的成本估算和计划很重要。在这项研究中，研究了粗大火成岩的晶粒组织特性，如长径比，圆度和直径对LCPC磨耗系数（LAC）的影响。首先，LAC与磨料矿物含量（AMC）相关，并且在两个参数之间发现了良好的相关性。然后，将LAC与AMC分别乘以晶粒的纹理特性相关联。与LAC和AMC之间的关系的相关系数相比，通过将晶粒的纹理特性包括在相关中，可以提高相关系数。定义了一个称为形状和尺寸系数（SSC）的组合参数，以查看晶粒的纹理特性对LAC的组合影响。 LAC与AMC之间的关系乘以SSC的相关系数非常强，并且比以前得出的相关系数高很多。可以得出结论，疏松材料的质地特性对工具磨损有很大影响。 （C）2016 Elsevier Ltd.保留所有权利。

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