Roussos Dimitrakopoulos
BackCahiers du GERAD
91 results — page 2 of 5
A new non-stationary, high-order sequential simulation method is presented herein, aiming to accommodate complex curvilinear patterns and high-order spatia...
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Over the last decade, geological uncertainty, its effects on long-term mine planning and methods for related risk management have been studied. However, th...
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A mining complex can include multiple mines, stockpiles, waste dumps and processing facilities. Traditional optimization approaches are often based on sequ...
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High-order sequential simulation methods have been developped as an alternative to existing frameworks to facilitate the modelling of spatial complexity of...
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Mining complexes are value chains where extracted material from different mines is transformed into sellable products through a set of processing streams. ...
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New digital technologies including the development of advanced sensors and monitoring devices have enabled a mining complex to acquire new information abou...
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A hyper-heuristic refers to a search method or a learning mechanism for selecting or generating heuristics to solve computational search problems. Operat...
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A new solution approach is developed herein to address the topic of multi-product open-pit mine production scheduling with multi-element uncertainty. The m...
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In the last 20 years, there has been increasing interest in using advanced simulation and optimization techniques to develop and manage mineral resources a...
BibTeX referenceStochastic optimization of long-term block cave scheduling with hang-up and grade uncertainty
The current trend of deeper and lower-grade deposits makes open pit mining less profitable. Mass mining alternatives have to be developed if mining at a si...
BibTeX referenceStochastic orebody modelling and stochastic long-term production scheduling for an iron ore deposit
For over a decade, stochastic optimization has emerged as a framework that is capable of generating a life-of-mine production schedule that increases ne...
BibTeX referenceSimultaneous stochastic optimization of production scheduling at Twin Creeks mining complex, Nevada
Twin Creeks is a gold mining complex part of Newmont's Nevada Operations. The mining complex is comprised of two open pits, Mega and Vista, external ore sour...
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A mining complex is a mineral value chain that consists of multiple activities, starting from material extraction to a set of sellable products delivered t...
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Short-term production scheduling in open pit mining consists of defining the extraction sequence and process allocation of mineralized material over time-sca...
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Relatively recent techniques for categorical simulations are based on multi-point statistical approaches where a training image is used to derive complex spa...
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As more and more data about mining complex operations is collected and stored, it becomes increasingly important for computer systems to help human operators...
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The mining value chain comprises many inter-related components, from mines to transportation, to customers. When the individual components are optimized sep...
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This study presents a production scheduling optimization method for a mining complex, which provides a flexible long-term plan for future investments and ope...
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Management and storage of waste and tailings are critical concerns in open pit mining, especially when the available space is limited but also to reduce the ...
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Long-term open pit mine scheduling is generally assessed with a mixed integer programming (MIP) formulation which can be solved with different operations res...
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