“Reducción de sobrerotura mediante la aplicación de voladura controlada en cruceros de 2.40m x 2.70m en Minera Marsa, Pataz 2024.”
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Date
2024-09
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Universidad Nacional de Trujillo
Abstract
El objetivo principal de la investigación fue determinar de qué manera la voladura
controlada influye en la reducción de sobrerotura en cruceros de 2.40m x 2.70m en minera
Marsa, Pataz 2024.
La metodología que utilizó fue aplicado, descriptivo correlacional, cuantitativo,
preexperimental de tipo longitudinal. La muestra estuvo conformada por 10 voladuras
controladas realizadas en los cruceros de 2.40m x 2.70m que pertenecen al nivel 2820 y veta
Cabana en contrata MINCOTRALL S.R.L. en Marsa. Para validar la hipótesis, se utilizó la
prueba t de muestras emparejadas, revelando un estadístico t de 11.552 , con un p-valor <
0.05. Los resultados obtenidos indicaron que, con la aplicación de voladura controlada en las
labores, se redujo la sobrerotura en un 21.45% en la labor CX 9387-SE, 16.67% en la labor
CX 9387-ASE y 14.34% en la labor 9361-NE. Asimismo, el costo promedio por disparo al
utilizar voladura controlada se redujo en un 16.97% (86.83 USD) en XC 9387-SE, 13.87%
2.53 y 2.57 kg/m3.
(69.61 USD) en XC 937-ASE y de 12.44% (60.19 USD) en XC 9361-NE. También se
calculó la distribución de carga explosiva, la cual en la voladura controlada y no controlada
utilizaron un total de 128 unidades de explosivo entre Emulnor 500, 1000, 3000 y 5000,
donde el Emulnor 500 utilizado para voladura controlada. El factor de carga para la voladura
no controlada varío entre 2.64 y 2.74 kg/m3, mientras que para la voladura controlada entre
Finalmente, se concluye que la aplicación de la voladura controlada influyó en la
reducción de la sobrerotura en un promedio de 17.49%, lo que llevó a una reducción de
costos por disparo en un promedio de 14.47% (216.63 USD) y una reducción del factor de
carga de 0.13 kg/m3.
The main objective of the research was to determine how controlled blasting influences the reduction of overbreak in 2.40m x 2.70m drifts at Marsa Mining, Pataz 2024. The methodology used was applied, descriptive-correlational, quantitative, and pre experimental of a longitudinal type. The sample consisted of 10 controlled blasts carried out in the drifts measuring 2.40m x 2.70m, located on level 2820 and Cabana vein, contracted by MINCOTRALL S.R.L. in Marsa. To validate the hypothesis, the paired t-test was used, revealing a t statistic of 11.552, with a p-value < 0.05. The results indicated that with the application of controlled blasting in the operations, overbreak was reduced by 21.45% in drift CX 9387-SE, 16.67% in drift CX 9387-ASE, and 14.34% in drift 9361-NE. Additionally, the average cost per blast when using controlled blasting was reduced by 16.97% (86.83 USD) in XC 9387-SE, 13.87% (69.61 USD) in XC 937-ASE, and 12.44% (60.19 USD) in XC 9361 NE. The explosive charge distribution was also calculated, showing that both controlled and uncontrolled blasts used a total of 128 units of explosives including Emulnor 500, 1000, 3000, and 5000, with Emulnor 500 being used for controlled blasting. The charge factor for uncontrolled blasting ranged from 2.64 to 2.74 kg/m3, while for controlled blasting it ranged from 2.53 to 2.57 kg/m3. Finally, it is concluded that the application of controlled blasting influenced the reduction of overbreak by an average of 17.49%, leading to a reduction in the cost per blast by an average of 14.47% (216.63 USD) and a reduction in the charge factor by kg/m3.
The main objective of the research was to determine how controlled blasting influences the reduction of overbreak in 2.40m x 2.70m drifts at Marsa Mining, Pataz 2024. The methodology used was applied, descriptive-correlational, quantitative, and pre experimental of a longitudinal type. The sample consisted of 10 controlled blasts carried out in the drifts measuring 2.40m x 2.70m, located on level 2820 and Cabana vein, contracted by MINCOTRALL S.R.L. in Marsa. To validate the hypothesis, the paired t-test was used, revealing a t statistic of 11.552, with a p-value < 0.05. The results indicated that with the application of controlled blasting in the operations, overbreak was reduced by 21.45% in drift CX 9387-SE, 16.67% in drift CX 9387-ASE, and 14.34% in drift 9361-NE. Additionally, the average cost per blast when using controlled blasting was reduced by 16.97% (86.83 USD) in XC 9387-SE, 13.87% (69.61 USD) in XC 937-ASE, and 12.44% (60.19 USD) in XC 9361 NE. The explosive charge distribution was also calculated, showing that both controlled and uncontrolled blasts used a total of 128 units of explosives including Emulnor 500, 1000, 3000, and 5000, with Emulnor 500 being used for controlled blasting. The charge factor for uncontrolled blasting ranged from 2.64 to 2.74 kg/m3, while for controlled blasting it ranged from 2.53 to 2.57 kg/m3. Finally, it is concluded that the application of controlled blasting influenced the reduction of overbreak by an average of 17.49%, leading to a reduction in the cost per blast by an average of 14.47% (216.63 USD) and a reduction in the charge factor by kg/m3.
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TECHNOLOGY::Civil engineering and architecture::Geoengineering and mining engineering::Mining engineering