Stochastic Mine Planning—Methods, Examples and Value in an Uncertain World

Author(s):  
R. Dimitrakopoulos
Minerals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 585 ◽  
Author(s):  
Mohammad Maleki ◽  
Enrique Jélvez ◽  
Xavier Emery ◽  
Nelson Morales

Production planning decisions in the mining industry are affected by geological, geometallurgical, economic and operational information. However, the traditional approach to address this problem often relies on simplified models that ignore the variability and uncertainty of these parameters. In this paper, two main sources of uncertainty are combined to obtain multiple simulated block models in an iron ore deposit that include the rock type and seven quantitative variables (grades of Fe, SiO2, S, P and K, magnetic ratio and specific gravity). To assess the effect of integrating these two sources of uncertainty in mine planning decision, stochastic and deterministic production scheduling models are applied based on the simulated block models. The results show the capacity of the stochastic mine planning model to identify and minimize risks, obtaining valuable information in ore content or quality at early stages of the project, and improving decision-making with respect to the deterministic production scheduling. Numerically speaking, the stochastic mine planning model improves 6% expected cumulative discounted cash flow and generates 16% more iron ore than deterministic model.


2018 ◽  
Vol 71 (2) ◽  
pp. 289-297 ◽  
Author(s):  
Vidal Félix Navarro Torres ◽  
Beck Nader ◽  
Carlos Enrique Arroyo Ortiz ◽  
Felipe Ribeiro Souza ◽  
Hudson Rodrigues Burgarelli ◽  
...  

2019 ◽  
Vol 72 (2) ◽  
pp. 275-284
Author(s):  
Pablo Koury Cherchenevski ◽  
João Felipe Coimbra Leite Costa ◽  
Ricardo Hundelshaussen Rubio

2020 ◽  
Vol 19 (9) ◽  
pp. 1723-1735
Author(s):  
A.Yu. Pronin

Subject. The article investigates the program-targeted planning methodology, which is implemented in the Russian Federation and leading foreign countries, for high-tech industry development. Objectives. The aim is to identify the specifics of program-targeted planning for the development of high-tech industries, to shape programs and plans for innovative development in the Russian Federation and leading foreign countries. Methods. The study employs general scientific methods of systems analysis, including the statistical and logical analysis. Results. I reviewed methods of program-targeted planning, implemented by the world’s leading countries (the Russian Federation, United States of America, France, Great Britain, Netherlands, Norway, Japan, Canada), in the interests of the development of various high-tech sectors of the economy. The study established that the methodology of program-targeted management is an effective tool for resource allocation by various types of economic activities in accordance with national priorities. I developed proposals by priority areas for improving the methodology for program-targeted planning and management in the Russian Federation in modern economic conditions. Conclusions. The findings and presented proposals can be used to improve methods for program-targeted planning to develop high-tech sectors of the economy; to design various long-term programs and plans, reducing the risk of their implementation; to determine the ways and methods of sustainable socio-economic and innovative and technological development of the world's leading economies.


2019 ◽  
Vol 5 ◽  
pp. 34-43 ◽  
Author(s):  
T. Kalybekov ◽  
◽  
K.B. Rysbekov ◽  
A.A. Toktarov ◽  
O.M. Otarbaev ◽  
...  

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