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This article presents a novel algorithm for solving a short-term open-pit production-scheduling problem in which several objectives, of varying priority, characterize the quality of each solution.
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The open-pit mine production scheduling problem (OPMPSP) in the traditional T&S system consists of scheduling the extraction of a mineral deposit that is broken into a number …
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Open pit mining method is one of the surface mining methods that has a traditional cone-shaped excavation and is usually employed to exploit a near-surface, nonselective and low-grade zones deposits.
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Abstract - The objective of an open pit mine production ... constraints and applicable for open-pit coal mining. Moreno et al. ... of overall 38,708 and 2,528 from the pit to stockpile (Pit-St) as ...
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This article presents a novel algorithm for the generation of multiple short-term production schedules for an open-pit mine, in which several objectives, of varying priority, characterize the ...
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In this study, we have proposed four mixed integer linear programming (MILP) formulations for large-scale long-term open pit production scheduling problem. We developed, implemented, …
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In essence, the integrated framework for sustainable long-term production planning of open-pit mines starts by defining the scope and system boundaries. Initially, we develop a …
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This paper presents a chance-constrained integer programming approach based on the linear method to solve the long-term open pit mine production scheduling problem.
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The open pit mine production scheduling problem determines a sequence of three-dimensional, notional block extraction that maximizes net present value (NPV) of future cash flows and satisfies ...
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The economic factors are also well investigated by Bozorgebrahimi et al. [2003] with regard to the selection of trucks. ... Singhal et al. (Eds). Balkema: Rotterdam, pp.3-40. 17. Halatchev R., 2002. "The time aspect of open pit long-term production sequencing optimization". 30th APCOM, Phoenix, Arizona. SME: Littleton, Colorado, pp.133-146 ...
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A typical open pit produces materials of various categories. This material is fed to the appropriate processing streams for recovering metal as a valuable product. Owing to the large scale of open pit mining operations, the optimal long-term planning in the context of production phase design and production scheduling is a complex technical ...
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In this paper, we first present a pushback determination approach which maximizes the profit of the mine with control over the tonnage of ore and waste within each pushback.
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Open pit mine design and production scheduling deals with the quest for the most profitable mining sequence over the life of a mine. ... (Metropolis et al., 1953). The annealing formulation first selects an initial mining sequence, where blocks with maximum probability (e.g., 95%) of belonging to a given mining period are frozen to that period ...
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(2014), 'An open pit mul tistage mine production scheduling model for drilling, blasting and excavating operatio ns' in Orebody Modelling and Strategic Mine Planning Symposium, Perth, Western ...
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Another major problem in open pit production scheduling is the size of the optimization problem. ... representation of the mining area called a Determination of value at risk for long-term production planning in open pit mines block model (Hustrulid et al., 2013). Considering the exploration drilling pattern, geological conditions, and the size ...
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In an Open-Pit Production Scheduling (OPPS) problem, the aim is to determine the mining sequence of an orebody as a block model. In common research methods for scheduling, commodity price and consequently block economic value are considered as fixed values. ... A. Alipour et al. 'Robust production scheduling in open-pit mining under uncertainty ...
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2 George St, GPO Box 2434, Brisbane, Qld 4001, Australia ... These objectives aim to meet production targets (Smith, 1998;Souza et al ... Although the principle of production planning in open-pit ...
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The design and scheduling of open pit mining operations is an enormous complex task. Given a discretisation of an orebody as a block model, the open pit mine production scheduling problem (OPMPSP ...
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By analysing the characteristics of open-pit mine production and haulage equipment types, problem definitions, formulation models and solution approaches in the relevant literature, the reviewed ...
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In most open-pit mines, material haulage costs can comprise over 50% of the total mining costs. This portion can even increase as the future mining conditions will become more challenging.
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Blom et al. (2014) proposed an MINLP model to address the short-term production scheduling problem for a network of multiple open-pit mines and ports, proposing a decomposition-based heuristic to ...
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The open pit mining problem aims at correctly identifying the set of blocks of a given mine to be extracted in order to maximize the net present value of the production.
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In-Pit Crushing and Conveying (IPCC) systems are receiving more attention today due to current characteristics of open-pit mining operations and what is expected to occur in the future.
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The research gap pointed out by Samavati et al. (2018) has been explored by Paricheh and Osanloo (2019a), who proposes a MILP model to optimise the location of the in-pit crusher to minimise total ...
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an open pit mine, from the final pit computation to the production scheduling. Mathem ati c s 2023, 11, x FOR PEER REVIEW 2 of 20 numeric a l a ributes such as element co ncentrations or mine ...
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Blom et al. (2014) proposed an MINLP model to address the short-term production scheduling problem for a network of multiple open-pit mines and ports, proposing a decomposition-based heuristic to ...
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The limestone production scheduling for an open pit mine can be described as deter- mining the order in which 'blocks' should be extracted to achieve a specific goal, while taking into ...
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Other researchers such as Zuckerberg et al. (2011), Askari-Nasab et al. (2011, Rahmanpour and Osanloo (2012) have used Mixed Integer Linear Programming (MILP) in production scheduling of open pit ...
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Long-term production scheduling and sequencing are the critical factors in attaining the economical objectives in surface mining. Determination of optimal production schedules for open pit mines ...
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The production scheduling of open pit mines is an intricate, complex and difficult problem to address due to its large scale and the unavailability of a truly optimal net present value (NPV) …
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