THE EFFECT OF DETONATOR PLACEMENT ON ROCK CRUSHING DURING EXPLOSIVE OPERATIONS IS IMPORTANT IN OPEN MINING
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This paper investigates the effect of detonator placement within a borehole charge on rock fragmentation during blasting operations in open-pit mining. Different detonator positioning options, including placement at the bottom of the charge and at its central section, are analyzed with respect to stress distribution and explosive energy utilization. Theoretical analysis and field test results demonstrate that positioning the detonator at the center of the charge provides a more uniform distribution of blast energy, reduces the proportion of oversized rock fragments, and improves overall fragmentation efficiency. The findings indicate that optimizing detonator placement can significantly enhance blasting performance and increase the productivity of mining operations.
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References
[1] Ylitalo, R., & Zhang, Z. X. (2021). Effect of detonator position on rock fragmentation: Full-scale field tests at Kevitsa open pit mine. International Journal of Rock Mechanics and Mining Sciences, 147, 104918. https://doi.org/10.1016/j.ijrmms.2021.104918 DOI: https://doi.org/10.1016/j.ijrmms.2021.104918
[2] Zhang, Z. X. (2014). Effect of double-primer placement on rock fracture and ore recovery. International Journal of Rock Mechanics and Mining Sciences, 71, 208–216. https://doi.org/10.1016/j.ijrmms.2014.03.020 DOI: https://doi.org/10.1016/j.ijrmms.2014.03.020
[3] Zhang, Z. X. (2016). Rock fracture and blasting: Theory and applications. Oxford: Elsevier. DOI: https://doi.org/10.1016/B978-0-12-802688-5.00003-8
[4] Zhang, Z. X. (2005). Increasing ore extraction by changing detonator positions in LKAB Malmberget mine. International Journal of Blasting and Fragmentation, 9(1), 29–46. https://doi.org/10.1080/13855140500082600 DOI: https://doi.org/10.1080/13855140500082600
[5] Шамаев, М. К., & Алимов, Ш. М. (2021). Обеспечение устойчивости бортов при ведении буровзрывных работ. Central Asian Journal of Theoretical and Applied Sciences, 2(4), 83–88.
[6] Алимов, Ш. М., & Ташкулов, А. А. (2022). Обоснование оптимальных параметров эффективного регулирования степени дробления. Oriental Renaissance: Innovative, Educational, Natural and Social Sciences, 2(5/2), 475–487.