A probabilistic assessment of blasting-induc ed vibration environmental effects to minimize impacts to a neighboring community
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REV. MAMYM
Abstract
Durante décadas, las personas cercanas a las minas se han quejado de vibraciones inducidas por voladuras, por eso, las herramientas de predicción de vibraciones tienen un gran significado. Este trabajo intenta a determinar la probabilidad de las vibraciones inducidas por voladuras de rocas superen los límites de los estándares internacionales de daños estructurales y malestar humano. Se cree que un análisis probabilístico es una herramienta útil para evitar daños a las comunidades cercanas. Este artículo muestra cómo se podría aplicar la simulación de Monte Carlo para las vibraciones a partir de variables estocásticas (carga explosiva y distancia) y una ley de atenuación representativa. Para vibraciones del suelo se observó 55% de probabilidad de daño estructural en una comunidad para una carga de 150 kg, 84% de probabilidad de malestar humano con una distancia de 1000 m y 450 kg. Considerando el ruido, no se observó influencia sobre la comunidad estudiada.
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.
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.
Description
Vol. 8, No. 1