scholarly journals Selection of drilling and blasting operations at the open pit 'Potrlica" Pljevlja

2013 ◽  
pp. 77-84
Author(s):  
Milenko Petrovic ◽  
Miljan Jaksic ◽  
Slobodan Miljojkovic
Keyword(s):  
Open Pit ◽  
Selection Of

scholarly journals A Multiple Criteria Decision Making Method to Weight the Sustainability Criteria of System Selection for Surface Mining

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3066
Author(s):  
Michał Patyk ◽  
Przemysław Bodziony ◽  
Zbigniew Krysa
Keyword(s):  
Decision Making ◽  
Performance Assessment ◽  
Multiple Criteria Decision Making ◽  
Surface Mining ◽  
Open Pit ◽  
Mining Equipment ◽  
Surface Mines ◽  
Mining Conditions ◽  
And Performance ◽  
Selection Of

Selection and assessment of mining equipment used in open pit rock mines relies chiefly on estimates of overall exploitation cost. The rational arrangement of mining equipment and systems comprising loading machines, haul trucks and crushing plants should be preceded by a thorough analysis of technical and economic aspects, such as investment outlays and the costs of further exploitation, which largely determine the costs of mining operations and the deposit value. Additionally, the operational parameters of the mining equipment ought to be considered. In this study, a universal set of evaluation criteria has been developed, and an evaluation method has been applied for the selection of surface mining equipment and the processing system to be operated in specific mining conditions, defined by the user. The objective of this study is to develop and apply the new methodology of multi-criteria selection of open pit rock mining equipment based on multiple criteria decision-making (MCDM) procedures, to enable the optimization of loading, handling and crushing processes. The methodology, underpinned by the principles of MCDM, provides the dedicated ranking procedures, including the ELECTRE III. The applied methodology allows the alternative options (variants) to be ranked accordingly. Ultimately, a more universal methodology is developed, applicable in other surface mines where geological and mining conditions are similar. It may prove particularly useful in selection and performance assessment of mining equipment and process line configurations in mining of low-quality rock deposits. Therefore, we undertook to develop universal criteria and applications for the selection and performance assessment of process machines for surface mines, taking into account environmental aspects as well as deposit quality.

scholarly journals Multi-Criteria Analysis for the Selection of the Optimal Mining Design Solution—A Case Study on Quarry “Tambura”

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3200
Author(s):  
Branimir Farkaš ◽  
Ana Hrastov
Keyword(s):  
Decision Making ◽  
Multiple Criteria Decision Making ◽  
Open Pit ◽  
Design Solution ◽  
Mine Design ◽  
Promethee Ii ◽  
Mining Design ◽  
Quarry Mine ◽  
Selection Of

Mining design is usually evaluated with different multiple-criteria decision-making (MCDM) methods when it comes to large open pit or underground ore mines, but it is not used on quarry sites. Since Croatia is mostly mining stone, the implementation of such methods in decision making of the quarry mine design is imperative but left out. In this paper, the PROMETHEE II and AHP decision-making methods are implemented on the quarry site to find out the best final quarry design contour. By implementing the MCDM methods, the best quarry model was chosen based on 22 different criteria parameters out of three final quarry designs. The chosen model is not only financially sound but also has the least environmental impact.

Identification and Selection of Regional Plants with Potential for Phytoremediation in Abandoned Open Pit Tailing Dams

2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Luis Miguel Rodríguez Vázquez ◽  
Ana Irán Prieto Valles ◽  
Ramón Silva Vázquez ◽  
Héctor Ávalos Loya ◽  
Eduardo Herrera Peraza ◽  
...  
Keyword(s):  
Open Pit ◽  
Tailing Dams ◽  
Selection Of

scholarly journals Selection of coal transportation mode from the open pit mine to the thermic power plant using Fuzzy Analytic Hierarchy Process

Transport ◽  
2017 ◽  
Vol 33 (2) ◽  
pp. 502-509 ◽  
Author(s):  
Pinar Mizrak Özfirat ◽  
Muharrem Kemal Özfirat ◽  
Tahir Malli
Keyword(s):  
Analytic Hierarchy Process ◽  
Power Plants ◽  
Open Pit Mine ◽  
Fuzzy Analytic Hierarchy Process ◽  
Open Pit ◽  
Analytic Hierarchy ◽  
Transportation Modes ◽  
Belt Conveyors ◽  
Hierarchy Process ◽  
Selection Of

Coal produced in open pit mines should be moved to thermic power plants for production of power. Thermic power plants require very large amounts of coal. In transportation process of this coal, both costs and technical parameters should be considered. Common alternative transportation modes in this process are belt conveyors, truck types, suspension rail conveying systems, pipelines and railways. Selection of one of these modes is influenced by transportation distance, inclination of the haulage road, amount of coal reserve, investment costs, production capacity and unit production cost of the open pit mine. In this study, advantages and disadvantages of alternative transportation modes are analysed using Fuzzy Analytic Hierarchy Process (F-AHP). The results revealed, belt conveyors and trucks transportation by are superior to others.

scholarly journals An Evaluation of Practical Applicability of Multi-Assortment Production Break-Even Analysis based on Mining Companies

2017 ◽  
Vol 62 (1) ◽  
pp. 33-44
Author(s):  
Dariusz Fuksa ◽  
Beata Trzaskuś-Żak ◽  
Zdzisław Gałaś ◽  
Arkadiusz Utrata
Keyword(s):  
Financial Statements ◽  
Open Pit ◽  
Hard Coal ◽  
Fixed Costs ◽  
Open Pit Mines ◽  
Mining Companies ◽  
Profit Analysis ◽  
Methods Of Evaluation ◽  
Cost Calculations ◽  
Selection Of

Abstract In the practice of mining companies, the vast majority of them produce more than one product. The analysis of the break-even, which is referred to as CVP (Cost-Volume-Profit) analysis (Wilkinson, 2005; Czopek, 2003) in their case is significantly constricted, given the necessity to include multi-assortment structure in the analysis, which may have more than 20 types of assortments (depending on the grain size) in their offer, as in the case of open-pit mines. The article presents methods of evaluation of break-even (volume and value) for both a single-assortment production and a multi-assortment production. The complexity of problem of break-even evaluation for multi-assortment production has resulted in formation of many methods, and, simultaneously, various approaches to its analysis, especially differences in accounting fixed costs, which may be either totally accounted for among particular assortments, relating to the whole company or partially accounted for among particular assortments and partially relating to the company, as a whole. The evaluation of the chosen methods of break-even analysis, given the availability of data, was based on two examples of mining companies: an open-pit mine of rock materials and an underground hard coal mine. The selection of methods was set by the available data provided by the companies. The data for the analysis comes from internal documentation of the mines – financial statements, breakdowns and cost calculations.

scholarly journals Justification and selection of the optimal method for draining the field of the “Angrensky” open pit mine in Uzbekistan

2021 ◽  
Vol 937 (4) ◽  
pp. 042086
Author(s):  
B Baymirzaev ◽  
S Sayyidkosimov ◽  
V Morozov ◽  
V V Morozov
Keyword(s):  
Stress Concentration ◽  
Open Pit ◽  
Lower Edge ◽  
Optimal Method ◽  
Drainage Wells ◽  
The Stability ◽  
Favorable Conditions ◽  
Distribution Of Stresses ◽  
Selection Of ◽  
Polarization Optical Method

Abstract An increase in the stability of the slopes of the sides of a quarry or a ledge when using drainage wells with a camouflage cavity is proved in the article by the polarization-optical method. On the obtained diagrams, the distribution of stresses within the massif clearly shows that in an intact massif, the main concentration of stresses is concentrated in the lower edge of the slope, which contributes to the formation of a plane of displacement of the massif and the development of deformations. The presence of a camouflage cavity leads to a redistribution of stresses with the formation of a stress concentration around the camouflage cavity and a significant decrease in the stress concentration in the lower edge of the slope. Thus, we can say that the use of wells with a camouflage cavity not only drains the rocks along the side, but also unloads the border massif, creating favorable conditions for increasing the stability of the drained slope of the side of the open pit.

scholarly journals The impact of equipment productivity and pushback width on the mine planning process

2020 ◽  
Vol 120 (10) ◽  
Author(s):  
A.S. Araya ◽  
M. Nehring ◽  
E.T. Vega ◽  
N.S. Miranda
Keyword(s):  
Planning Process ◽  
Mine Planning ◽  
Open Pit ◽  
Open Pit Mining ◽  
Capital Costs ◽  
Planning Processes ◽  
Equipment Utilization ◽  
The Impact ◽  
Selection Of

SYNOPSIS Conventional mine planning processes result in the selection of pushback widths that maximize equipment productivity. This paper challenges the current notion that pushback width should be set at the distance that assures maximum equipment productivity. A hypothetical case study is presented, which shows that the value of a project may increase beyond that determined by traditional planning practices. It was found that it may be better to deploy more aggressive mining strategies, which are likely to result in greater operational complexity and thus reduced equipment productivity. A higher equipment productivity, which often corresponds to wider (and therefore a lower number of) pushbacks, will also often result in later ore extraction and require higher capital costs. Keywords: open pit mining, pushback width, mine planning, schemes of exploitation, mining rate, equipment utilization.

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