Bibliographic citations
Alvarado, W., (2024). “Reducción de sobrerotura mediante la aplicación de voladura controlada en cruceros de 2.40m x 2.70m en Minera Marsa, Pataz 2024.” [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/22347
Alvarado, W., “Reducción de sobrerotura mediante la aplicación de voladura controlada en cruceros de 2.40m x 2.70m en Minera Marsa, Pataz 2024.” []. PE: Universidad Nacional de Trujillo; 2024. https://hdl.handle.net/20.500.14414/22347
@misc{renati/883087,
title = "“Reducción de sobrerotura mediante la aplicación de voladura controlada en cruceros de 2.40m x 2.70m en Minera Marsa, Pataz 2024.”",
author = "Alvarado Infantes, Willam Alex",
publisher = "Universidad Nacional de Trujillo",
year = "2024"
}
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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