4.7 Article

Prediction of Blast-Induced Ground Vibration in an Open-Pit Mine by a Novel Hybrid Model Based on Clustering and Artificial Neural Network

期刊

NATURAL RESOURCES RESEARCH
卷 29, 期 2, 页码 691-709

出版社

SPRINGER
DOI: 10.1007/s11053-019-09470-z

关键词

Ground vibration; Open-pit mine; Hybrid model; Hierarchical k-means clustering; Artificial neural network

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Ground vibration (PPV) is one of the hazard effects induced by blasting operations in open-pit mines, which can affect the surrounding structures, particularly the stability of benches and slopes in open-pit mines, and impact underground water, railway, highway, and puzzling for neighboring communities. Therefore, controlling, accurate prediction, and mitigating blast-induced PPV are necessary. This study contributed a new computational model in predicting blast-induced PPV for the science community and practical engineering with high accuracy level. In this study, a novel hybrid artificial intelligence model based on the hierarchical k-means clustering algorithm (HKM) and artificial neural network (ANN), namely a HKM-ANN model, was considered and proposed for predicting blast-caused PPV in open-pit mines. Accordingly, input data were first clustered by the HKM algorithm, and then, the ANN models were developed based on the obtained clusters. For this aim, 185 blasting events were collected and analyzed. A hybrid model based on fuzzy c-means clustering (FCM) and support vector regression (SVR), i.e., FCM-SVR model, which was proposed by previous authors was also applied for comparison of results with our proposed HKM-ANN model. In addition, an empirical method, several ANN and SVR models (without clustering), FCM-ANN, and HKM-SVR were developed for comparison purposes. For measuring the performance of the improved models, coefficient determination (R-2), root-mean-square error, and variance account for were used as the performance indicators. The results show that the HKM algorithm played a significant role in improving the accuracy of the ANN models. The proposed HKM-ANN model was the most superior model in estimating PPV caused by blasting operations in this study.

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