Publicado

2020-04-01

Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning

Consideración de la dilución operativa incorporando incertidumbres geológicas en la planificación minera a corto plazo

DOI:

https://doi.org/10.15446/dyna.v87n213.83661

Palabras clave:

operational dilution, short-term planning, uncertainties (en)
dilución operativa, planificación corto plazo, incertidumbres (es)

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Operational dilution in open-pit mining can influence short-term mine planning and affect the adherence between designed and executed plans, impacting the reconciliation results. This type of dilution may occur due to several reasons, such as erroneous assumptions regarding contacts, inefficient mining performance, and uncertainties associated with the planned grades. The use of uncertainties enables better predictability and achievement of planned targets. Using the mine planning polygons and grade models, a methodology is proposed to measure the dilution ranges in each region. The methodology considers the uncertainty associated with the ore grades to verify the probability of occurrence of dilution in the short-term mine plan. The results demonstrated that the use of uncertainties enabled identification of the areas with a higher potential of incurring operational dilution. Using this information, the plans can be adjusted to minimize dilution, or the result can be used as a factor to correct the planned data.
La dilución operativa en la minería en rajo puede afectar la adherencia entre los planes diseñados y ejecutados, lo que afecta los resultados de la reconciliación. Este tipo de dilución puede ocurrir debido a suposiciones erróneas con respecto a los contactos, desempeño minero ineficiente e incertidumbres asociadas con las leyes planificadas. Utilizando los polígonos de planificación y los modelos de bloques, se propone una metodología para medir los rangos de dilución en cada región. La metodología considera la incertidumbre asociada con las leyes de mineral para verificar la probabilidad de ocurrencia de dilución en el plan de mina a corto plazo. Los resultados demostraron que el uso de incertidumbres permitió la identificación de las áreas con un mayor potencial de incurrir en una dilución operativa. Con esta información, los planes pueden ajustarse para minimizar la dilución, o el resultado puede usarse como un factor para corregir los datos planificados.

Referencias

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Cómo citar

IEEE

[1]
T. R. Camara, R. Scheffer Leal, y R. de Lemos Peroni, «Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning», DYNA, vol. 87, n.º 213, pp. 178–183, abr. 2020.

ACM

[1]
Camara, T.R., Scheffer Leal, R. y de Lemos Peroni, R. 2020. Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning. DYNA. 87, 213 (abr. 2020), 178–183. DOI:https://doi.org/10.15446/dyna.v87n213.83661.

ACS

(1)
Camara, T. R.; Scheffer Leal, R.; de Lemos Peroni, R. Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning. DYNA 2020, 87, 178-183.

APA

Camara, T. R., Scheffer Leal, R. & de Lemos Peroni, R. (2020). Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning. DYNA, 87(213), 178–183. https://doi.org/10.15446/dyna.v87n213.83661

ABNT

CAMARA, T. R.; SCHEFFER LEAL, R.; DE LEMOS PERONI, R. Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning. DYNA, [S. l.], v. 87, n. 213, p. 178–183, 2020. DOI: 10.15446/dyna.v87n213.83661. Disponível em: https://revistas.unal.edu.co/index.php/dyna/article/view/83661. Acesso em: 22 mar. 2026.

Chicago

Camara, Tais Renata, Ronald Scheffer Leal, y Rodrigo de Lemos Peroni. 2020. «Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning». DYNA 87 (213):178-83. https://doi.org/10.15446/dyna.v87n213.83661.

Harvard

Camara, T. R., Scheffer Leal, R. y de Lemos Peroni, R. (2020) «Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning», DYNA, 87(213), pp. 178–183. doi: 10.15446/dyna.v87n213.83661.

MLA

Camara, T. R., R. Scheffer Leal, y R. de Lemos Peroni. «Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning». DYNA, vol. 87, n.º 213, abril de 2020, pp. 178-83, doi:10.15446/dyna.v87n213.83661.

Turabian

Camara, Tais Renata, Ronald Scheffer Leal, y Rodrigo de Lemos Peroni. «Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning». DYNA 87, no. 213 (abril 1, 2020): 178–183. Accedido marzo 22, 2026. https://revistas.unal.edu.co/index.php/dyna/article/view/83661.

Vancouver

1.
Camara TR, Scheffer Leal R, de Lemos Peroni R. Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning. DYNA [Internet]. 1 de abril de 2020 [citado 22 de marzo de 2026];87(213):178-83. Disponible en: https://revistas.unal.edu.co/index.php/dyna/article/view/83661

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CrossRef Cited-by

CrossRef citations5

1. Gonzalo Nelis, Nelson Morales, Rodrigo Estay, Fabián Manríquez, Patricio Vivar, Constanza Morales. (2025). A novel optimization model for the dig-limit definition problem in open pit mines with multiple destinations. Resources Policy, 102, p.105510. https://doi.org/10.1016/j.resourpol.2025.105510.

2. Jiaqi Jin, Chicheng Yan, Yixuan Tang, Yilong Yin, Zhihan Lv. (2021). [Retracted] Mine Geological Environment Monitoring and Risk Assessment in Arid and Semiarid Areas. Complexity, 2021(1) https://doi.org/10.1155/2021/3896130.

3. Rodrigo Alfaro, Mohammad Maleki, Nasser Madani, Saeed Soltani-Mohammadi. (2023). Comparing the accuracy of two approaches to account for internal dilution: A case study from a porphyry copper deposit. International Journal of Mining, Reclamation and Environment, 37(6), p.441. https://doi.org/10.1080/17480930.2023.2192030.

4. Mikhail Marinin, Oksana Marinina, Radosław Wolniak. (2021). Assessing of Losses and Dilution Impact on the Cost Chain: Case Study of Gold Ore Deposits. Sustainability, 13(7), p.3830. https://doi.org/10.3390/su13073830.

5. Eutemio Sánchez. (2023). Planeamiento estratégico para la mejora de productividad y competitividad de la minería subterránea en el Perú. Gestionar: revista de empresa y gobierno, 3(2), p.50. https://doi.org/10.35622/j.rg.2023.02.005.

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