Long-term production planning (LTPP) is a large-scale optimization problem that aims to find the block extraction sequence that produces the maximum possible net present value (NPV) whilst satisfying a variety of physical and economical constraints. The economic feasibility of a mine is highly dependent upon careful LTPP. As the mining …

Operations planning and management of a large open pit mine is an enormous and complex task, particularly for mines having long life. The long-term planning of open pit mine is a dynamic process and should be reviewed periodically for enhancing the NPV and life of mine. Pit optimization through soft computing can be gainfully …

In paper 101, Ali presents a two-stage clustering-MILP algorithm for long-term production planning in open-pit mines incorporating multi range stockpiles in the decision-making process, that leads ...

A New Open Pit Mine Planning Optimisation Model Using Block Aggregation and Integer Programming, vol. 118, South African Institute of Mining ... A stochastic optimization method with in-pit waste and tailings disposal for open pit life-of-mine production planning. Resour. Pol., 57 (2018), pp. 112-121, …

Advanced mine planning solutions designed for open-pit mines that process hard rock. Micromine Alastri is engineered to model the intricate open-pit mines operating today and those being designed for the future. It does this through integrated solutions at each stage of the mine planning process, from reserve generation, tactical and production ...

Open-Pit Mine Production Planning and Scheduling: A Research Agenda. Mehran Samavati, Daryl L. Essam, Micah Nehring & Ruhul Sarker. Conference paper. …

Abstract. Open-pit mining plans include implementing operations throughout the entire life of the mine. In addition to geometric and geotechnical constraints, it is important to …

This paper presents a two-stage clustering-MILP algorithm for long-term production planning in open-pit mines. The research integrates multi-range stockpiles in the decision-making process that leads to determining the optimum number of stockpiles required to maximize the discounted value of the mine, as well as balancing the quality …

The methodology will be based on a sequential development for the long-term open-pit production planning process by considering the geological uncertainty represented by a series of ( left| R right| ) conditional simulations of the block model ( B ).This sequential methodology includes developing strategies for each of the three …

Long-term production planning (LTPP) is a large-scale optimization problem that aims to find the block extraction sequence that produces the maximum …

This review examines the current state-of-the-art in short-term planning for open-pit mines, with a. granularity that spans da ys, weeks, or months, and a horizon of less than one to two y ears ...

Long-term open pit mine production planning: a review of models and algorithms. Int. J. Min. Reclam. Environ., 22 (1) (2008), pp. 3-35, 10.1080/118947. View in Scopus Google Scholar. Ramazan, 2007. S. Ramazan. The new fundamental tree algorithm for production scheduling of open pit …

The problem of long-term production planning of open pit mines is a large combinatorial problem. Application of mathematical programming approaches suffer from reduced computational efficiency due to the large amount of decision variables. This paper presents a new metaheuristic approximation approach based on the Ant Colony …

Production planning of an open pit mine is defined as determining the extraction sequence of blocks in the final pit limit with the goal of maximizing Net Present Value (NPV) while considering the ...

Open pit mine production scheduling (OPMPS) is a strategic decision-making problem that seeks to define the optimal sequence of material extraction and the …

The optimization of open pit mine production scheduling is not only a multistage decision-making problem but also involves space–time dynamic action among multiple factors, which makes it ...

Determining an optimum long term production schedule is an important part of the planning process of any open pit mine; however, the associated optimization problem is demanding and hard to deal ...

The optimization of open pit mine production scheduling is not only a multistage decision-making problem but also involves space–time dynamic action among multiple factors, which makes it ...

In open pit mining, the complexity of operations, coupled with a highly uncertain and dynamic production environment, limit the accuracy of predictions and force a reactive planning approach to ...

SYNOPSIS Long-term production scheduling is a major step in open pit mine planning and design. It aims to maximize the net present value (NPV) of the cash flows from a mining project while satisfying all the operational constraints, such as grade blending, ore production, mining capacity, and pit slope during each scheduling period.

DOI: 10.3390/math11183907 Corpus ID: 261981339; A Multi-Stage Methodology for Long-Term Open-Pit Mine Production Planning under Ore Grade Uncertainty @article{Jlvez2023AMM, title={A Multi-Stage Methodology for Long-Term Open-Pit Mine Production Planning under Ore Grade Uncertainty}, author={Enrique …

In the following sections, the description of the proposed SIP model, referred to as the open pit mine planning stochastic integer program with in-pit tailings disposal (OMPSIP-ITD), is presented. Subsequently, a case study at an iron ore deposit located in Labrador, Canada, details the applied aspects and contributions of the proposed model.

Open pit mine production scheduling (OPMPS) is a decision problem involving which blocks, within the final pit limits, should be mined in each year, and where the blocks should be sent, e.g., mill, waste dump or stockpile, to maximize the net present value (NPV) subject to the constraints that: (i) mining and processing consume limited …

1 Citations. Metrics. Abstract. Reasonable production capacity is related to the economic benefits of an open-pit coal mine. This study analyzes the relationship …

Long-term open-pit production planning is a comp licated process that includes deciding on the. order of extraction of blocks and th eir destinations in order to satisfy various technical ...

open pit mine production planning: a review of models and algorithms', International Journal of Mining, Reclamation and Environment, 22:1, 3 - 35 To link to this article: DOI: 10.1080 ...

Open-pit mines are complex businesses with long-term profits ranging from millions to billions of dollars. These mines have a minimum of one discrete (mining) and one continuous (processing) subsystem working in unison to deliver input raw material to several downstream industries.The inherent difference between these two subsystems …

Long-term open pit mine production planning: a review of models and algorithms . International Journal of Mining, Reclamation and Environment, V ol. 221, p. 3-35.

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 ...

A dynamic optimization method was created to address the production schedule issue in an open-pit coal mine while taking into account the characteristics of the fuzzy structured element.

Short-term production scheduling in open pit mines usually generates a scheme to enable mining operations to deliver the budgeted tonnes and grades to the mill while following the long-term mine plan. The goal of this paper is to develop and test an optimisation model for short-term open pit mine production scheduling. A …