Abstract
Texture coefficient is one of the most influential parameters in rock engineering specifications in various projects including drilling, cutting, permeability of all-section drilling devices, etc. Meanwhile, investigating and forecasting the energy consumption of saw cutters are one of the most important factors in estimating the cutting costs. The present study aims to investigate the relationship between rock texture characteristics and the amount of energy consumption of the gang saw machine in the process of cutting carbonate rocks. To evaluate the effects of texture on the rocks' engineering specifications, 14 carbonate rock samples were studied. A microscopic thin section was made from each rock specimen. Then, five digital images were taken from each section under a microscope and the values of area, environment, the largest diameter and the smallest diameter of all grains in each image were determined. Using these specifications, the coefficient of texture of all rock samples was calculated and the relationship between the texture coefficient and the rate of energy consumption of the gang saw machine was investigated for the studied samples. The study results indicated that there was a significant relation between the texture coefficient and energy consumption rate in the three groups of carbonate rocks.
Highlights
In many texts written about the mineralogy and lithology, there are many different ways to diagnose and describe the texture of a rock
The present study aimed to investigate the relationship between rock texture characteristics and the amount of energy consumption of the gang saw machine in the cutting process of carbonate rocks
TC: texture coefficient, N0: Number of grains with aspect ratio less than 2, N1: Number of grains with aspect ratio greater than 2, FFo: Arithmetic mean of shape factor of all N0 grains, AR1: Arithmetic mean of aspect ratio of N1 grains, AF1: Angle factor orientation which were computed for all N1 grains, AW: Area weighting, which calculated: Total grain area within reference are boundary
Summary
In many texts written about the mineralogy and lithology, there are many different ways to diagnose and describe the texture of a rock. In another study conducted by Yilmaz et al, the correlations between a single parameter of rock texture (percentage mineral content and grain size) and mechanical properties of various granites were investigated. In the research of Ghaysari et al, the prediction of production rate in diamond wire saw was investigated based on the texture characteristics of rock [10]. The relationship between the production rate of diamond wire saw and some important rock properties was investigated by Ataei et al using statistical analysis [19]. A prediction model was developed by Ghaysari et al to evaluate the performance of diamond wire saw based on texture characteristic of carbonate rock [21]. The present study aimed to investigate the relationship between rock texture characteristics and the amount of energy consumption of the gang saw machine in the cutting process of carbonate rocks. As far as the author know, predicting the energy consumption using the regression analysis based on texture coefficient is a unique research
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