Version 1
: Received: 12 June 2023 / Approved: 13 June 2023 / Online: 13 June 2023 (08:04:17 CEST)
How to cite:
Gebretsadik, A.; Kumar, R.; Ikeda, H.; Ali, M.; Fissha, Y.; Mishra, A.K.; Kide, Y.; Mnzool, M.; Ali, E.; Gomaa, E.E. Enhancing Rock Fragmentation Assessment in Mining Blasting through Machine Learning Algorithms: An Effective Approach. Preprints2023, 2023060891. https://doi.org/10.20944/preprints202306.0891.v1
Gebretsadik, A.; Kumar, R.; Ikeda, H.; Ali, M.; Fissha, Y.; Mishra, A.K.; Kide, Y.; Mnzool, M.; Ali, E.; Gomaa, E.E. Enhancing Rock Fragmentation Assessment in Mining Blasting through Machine Learning Algorithms: An Effective Approach. Preprints 2023, 2023060891. https://doi.org/10.20944/preprints202306.0891.v1
Gebretsadik, A.; Kumar, R.; Ikeda, H.; Ali, M.; Fissha, Y.; Mishra, A.K.; Kide, Y.; Mnzool, M.; Ali, E.; Gomaa, E.E. Enhancing Rock Fragmentation Assessment in Mining Blasting through Machine Learning Algorithms: An Effective Approach. Preprints2023, 2023060891. https://doi.org/10.20944/preprints202306.0891.v1
APA Style
Gebretsadik, A., Kumar, R., Ikeda, H., Ali, M., Fissha, Y., Mishra, A.K., Kide, Y., Mnzool, M., Ali, E., & Gomaa, E.E. (2023). Enhancing Rock Fragmentation Assessment in Mining Blasting through Machine Learning Algorithms: An Effective Approach. Preprints. https://doi.org/10.20944/preprints202306.0891.v1
Chicago/Turabian Style
Gebretsadik, A., Enas Ali and E. E. Gomaa. 2023 "Enhancing Rock Fragmentation Assessment in Mining Blasting through Machine Learning Algorithms: An Effective Approach" Preprints. https://doi.org/10.20944/preprints202306.0891.v1
Abstract
In a limestone quarry mine, fragmentation is a crucial outcome of blasting operations. The optimization of blasting operations greatly benefits from the prediction of rock fragmentation. The main factors that affect fragmentation are rock mass characteristics, blast geometry, and explosive properties. This paper is a step towards the implementation of machine learning and deep learning algorithms for predicting the extent of fragmentation (in percentage) in opencast mining. Various parameters can affect fragmentation. But, in this paper initially, ten parameters (spacing, drill hole diameter, burden, average bench height, powder factor, number of holes, charge per delay, uniaxial compressive strength, specific drilling, and stemming) are collected to train the model. However, due to a weak correlation with rock fragmentation, drill diameter, Average bench height, compressive strength, stemming, and charge per delay are eliminated to reduce model complexity. A total of 219 data sets having five input features i.e., the number of holes, spacing, burden, specific drilling, and powder factor are used to develop the models. To predict rock fragmentation due to blasting in limestone quarry mines, both machine learning models (Random Forest Regression (Bagging), Support Vector Regression, and XG Boost Regression (Boosting)), as well as a deep learning model (Neural Network Regression), are applied to develop a model that can optimize the prediction of fragmentation. The Artificial neural network model optimization showed that the model with architecture 64-32-16-1 can perform well giving MSE (mean squared error) values of 41.32 and 28.59 on training and test data respectively. The R2 value for both training and test is 0.83. Random Forest regression is also performing well compared to SVR and XG boost with the MSE value 12.37 and 9.89 on training and testing data respectively. Here, the R2 value for both sets are 94%. Based on the permutation importance and Shapely plot values, the powder factor has the highest impact, and the burden has the lowest impact on fragmentation.
Keywords
Fragmentation; Artificial neural network; Random Forest regression; Support vector regression; XG Boost Regression; Sensitivity analysis
Subject
Engineering, Mining and Mineral Processing
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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