Ventajas técnico económicas para reemplazar la Motoniveladora JOHN DEERE-670G por Motoniveladora CAT-140K en la contrata ETHAN E.I.R.L. Summa Gold SAC 2024
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Date
2024-09
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Universidad Nacional de Trujillo
Abstract
El objetivo principal de la investigación fue evaluar las ventajas técnico-económicas
para reemplazar la Motoniveladora JOHN DEERE 670G por Motoniveladora CAT 140K en la
contrata ETHAN E.I.R.L. Summa Gold SAC 2024. La metodología que utilizó es de diseño no
experimental, descriptivo del tipo aplicativo. La muestra se conformó por la motoniveladora
JOHN DEERE 670G y Motoniveladora CAT 140K en la contrata ETHAN E.I.R.L. La
validación de los instrumentos se realizó mediante la prueba de Holti, se obtuvo una
confiabilidad muy alta de 0.82. Además, se aplicó la prueba estadística no paramétrica de
Wilcoxon para validar la hipótesis, la cual indicó mejoras significativas tanto técnicas como
económicas con el reemplazo de las motoniveladoras (Z= -2.805 y Sig.= 0.005). Los resultados
obtenidos indicaron que las especificaciones técnicas y operativas de la JOHN DEERE 670G
mostraron una disponibilidad mecánica del 65.67%, una potencia de 185 HP y un rendimiento
horario total de S/. 296.35.
promedio de 2749.94 m2/h, con costos de posesión de S/. 106.81 por hora y costos operativos
de S/. 214.02 por hora, resultando en un costo horario total de S/. 320.83. Por otro lado, las
especificaciones técnicas y operativas de la CAT 140K revelaron una disponibilidad mecánica
de 90.00%, una potencia de 190 HP y un rendimiento de 4120.6 m2/h, con costos de posesión
de S/. 112.73 por hora, y costos operativos de S/. 183.62 por hora, resultando en un costo
Finalmente, se concluyó que reemplazar la motoniveladora JOHN DEERE 670G por
CAT 140K es adecuado, ya que la CAT 140K presenta un rendimiento y producción superior
en un 33.26% y 54.47%, respectivamente, y menores costos horarios totales de S/. 24.47 por
hora, lo que se traduce en una diferencia total de S/. 72 940.73 durante el periodo de estudio.
The main objective of the research was to evaluate the technical-economic advantages of replacing the JOHN DEERE 670G Motor Grader with a CAT 140K Motor Grader at ETHAN E.I.R.L. Summa Gold SAC 2024. The methodology used was a non-experimental, descriptive design of the applicative type. The sample consisted of the JOHN DEERE 670G motor grader and CAT 140K motor grader in the ETHAN E.I.R.L. contract. The validation of the instruments was carried out by means of the Holti test, and a very high reliability of 0.82 was obtained. In addition, the Wilcoxon nonparametric statistical test was applied to validate the hypothesis, which indicated significant technical and economic improvements with the replacement of motor graders (Z= -2.805 and Sig.= 0.005). The results obtained indicated that the technical and operational specifications of the JOHN DEERE 670G showed a mechanical availability of 65.67%, a power of 185 HP and an average yield of 2749.94 m2/h, with possession costs of S/. 106.81 per hour and operating costs of S/. 214.02 per hour, resulting in a total hourly cost of S/. 320.83. On the other hand, the technical and operational specifications of the CAT 140K revealed a mechanical availability of 90.00%, a power of 190 HP and an output of 3120.6 m2/h, with possession costs of S/. 112.73 per hour, and operating costs of S/. 183.62 per hour, resulting in a total hourly cost of S/. 296.35. Finally, it was concluded that replacing the JOHN DEERE 670G motor grader with the CAT 140K is adequate, since the CAT 140K has a 33.26% and 54.47% higher performance and production, respectively, and lower total hourly costs of S/. 24.47 per hour, which translates into a total difference of S/. 72,940.73 during the study period.
The main objective of the research was to evaluate the technical-economic advantages of replacing the JOHN DEERE 670G Motor Grader with a CAT 140K Motor Grader at ETHAN E.I.R.L. Summa Gold SAC 2024. The methodology used was a non-experimental, descriptive design of the applicative type. The sample consisted of the JOHN DEERE 670G motor grader and CAT 140K motor grader in the ETHAN E.I.R.L. contract. The validation of the instruments was carried out by means of the Holti test, and a very high reliability of 0.82 was obtained. In addition, the Wilcoxon nonparametric statistical test was applied to validate the hypothesis, which indicated significant technical and economic improvements with the replacement of motor graders (Z= -2.805 and Sig.= 0.005). The results obtained indicated that the technical and operational specifications of the JOHN DEERE 670G showed a mechanical availability of 65.67%, a power of 185 HP and an average yield of 2749.94 m2/h, with possession costs of S/. 106.81 per hour and operating costs of S/. 214.02 per hour, resulting in a total hourly cost of S/. 320.83. On the other hand, the technical and operational specifications of the CAT 140K revealed a mechanical availability of 90.00%, a power of 190 HP and an output of 3120.6 m2/h, with possession costs of S/. 112.73 per hour, and operating costs of S/. 183.62 per hour, resulting in a total hourly cost of S/. 296.35. Finally, it was concluded that replacing the JOHN DEERE 670G motor grader with the CAT 140K is adequate, since the CAT 140K has a 33.26% and 54.47% higher performance and production, respectively, and lower total hourly costs of S/. 24.47 per hour, which translates into a total difference of S/. 72,940.73 during the study period.
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TECHNOLOGY::Civil engineering and architecture::Geoengineering and mining engineering::Mining engineering