Abstract

VELOSO FERREIRA, Fabiano; NAVARRO TORRES, Vidal Félix  and  SOARES CHAVES, Leonardo. A probabilistic assessment of blasting-induc ed vibration environmental effects to minimize impacts to a neighboring community. REV. MAMYM [online]. 2023, vol.8, n.1, pp.16-23. ISSN 2519-5352.

Abstract For decades people near mine sites have complained of blasting-induced vibrations, because of that, tools of vibration prediction have a great significance. The idea of this work is to determine the probability of rock-blasting-induced vibrations exceed the threshold limits of international standards, related to structural damage and human discomfort. It is believed that a probabilistic analysis is a useful tool for avoiding harm to communities nearby. This paper shows how Monte Carlo simulation could be applied for blast-induced vibration from stochastic variables (maximum charge per delay and distance between blasting and the monitoring point) with the application of a representative attenuation law. For ground vibrations, it was observe 55% probability of structural damage in a community for a charge of 150 kg, 84% probability for human discomfort with a distance of 1000 m and 450 kg. However, for airblast overpressure it was observed no influence over the community studied.

Keywords : environmental impact; ground vibration; occurrence probability.

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