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Journal of the Southern African Institute of Mining and Metallurgy
versión On-line ISSN 2411-9717
versión impresa ISSN 2225-6253
Resumen
REHMAN, A. Ur; EMAD, M.Z. y KHAN, M.U.. Improving the environmental and economic aspects of blasting in surface mining by using stemming plugs. J. S. Afr. Inst. Min. Metall. [online]. 2021, vol.121, n.7, pp.369-377. ISSN 2411-9717. http://dx.doi.org/10.17159/2411-9717/1573/2021.
The use of stemming plugs in surface blasting is gaining popularity because of the environmental, technical, and economic advantages. Although previous studies have established the operational effectiveness of different types of stemming plugs, evaluations of the economic and ergonomic impacts are lacking, thereby hindering their application in many mining operations. Consequently, a significant proportion of mining operations end up performing less efficient blasts. We evaluated the effectiveness of three types of stemming plugs by conducting multiple full-scale production blasts. The results show that stemming plugs reduce the need for secondary blasting and increase blast performance. An economic analysis showed that the incorporation of stemming plugs can reduce blasting costs significantly.
Palabras clave : stemming plugs; economic analysis; blast performance; surface mining; confinement.