open pit mine design factors

Open Pit Mine Design Factors

GEOTECHNICAL CONSIDERATIONS IN OPEN PIT MINES

Geotechnical Considerations in Open Pit Mines Version 1.0 Department of Minerals and Energy Page 3 of 49 1.0 INTRODUCTION The potentially hazardous nature of open pit mining requires the application of sound geotechnical engineering practice to mine design and general operating procedures, to allow

Design of openpit mining - SlideShare

E Contd.E. Pit design Overall slope of a pit depends on several factors of the pit slope: a) Geological disturbances like faults etc. b) Hydrological condition of strata c) Orientation of slip planes d) Nature of strata – i.e. hardness, material consolidation etc. e) Depth of workings f) …

Optimum ramp design in open pit mines - …

Although there are many articles about the open pit ramp design problem, the majority of them focus on practical guidelines instead of mathematical formulations or algorithms. We are aware of only a few publications that analyse the in-pit ramp design problem, and none on the ex-pit road design problem.

Investigation of Excavator Performance Factors in an Open ...

Several factors effecting productivity like location design, truck model, exca-vator model, weather conditions, material type, shift availability, truck-excavator matching, etc., were used to assess performance, using loading cycle time data. The use of loading cycle time for measuring performance of the -pit mine open

What are steps of Open Pit Mine Design? - …

The steps of an open pit mine design can be classified in categories and subcategories. ... Once you have a block model you need to evaluate several factors simultaneously (geological, technical, economical, environmental etc) in order to design your mine plan, ...

THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT MINING …

THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT MINING PROJECTS* Anoush Ebrahimi, P. Eng., ... Mine design, and Mine evaluation . INTRODUCTION Uncertainty and risk are inherent characteristics of mining projects. This is due to uncertainty in ... Factors that are related to mine operation comprise the mining method, ...

Determining the Most Effective Factors on Open …

Abstract. Determination of ultimate pit limit, and sequence of blocks extraction through the mine life is referred as mine design and planning. The aim of mine design and planning is to develop a yearly extraction plan which guides the mining operation to the highest Net Present Value (NPV).

Open pit mine planning considering geomechanical fundamentals

of the mine [4]. Several factors must be taken into account during the mine planning process to fulfil the main goal of the open pit mine planning to maximise the value of the business according to the strategic objectives of the mining company. These factors include the economic parameters, such as, costs and

Slope Design and Implementation in Open Pit …

Principles of slope design in open pit mines Considering the importance of stakes, the slope design in open pit mines must be based on a well-controlled methodology, especially since experience shows that each rock mass characterized by its geological structure is unique, and therefore there are no standard recipes that achieve the right ...

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Optimized open pit mine design, pushbacks and the gap ...

OPTIMIZED OPEN PIT MINE DESIGN, PUSHBACKS AND THE GAP PROBLEM—A REVIEW 509 JOURNAL OF MINING SCIENCE Vol. 50 No. 3 2014 Fig. 1. Schematic representation of an open pit design showing three pushbacks with gap problems.

Slope Design and Implementation in Open Pit Mines ...

Keywords: slope stability, slope design, engineering geology, fault, open pit mines, SOMAIR uranium mine, OCP phosphate mine 1. INTRODUCTION Slopes of mines and quarries, some of which may reach several hundred meters deep, must be regarded as "geotechnical works" in the sense that we speak of mine works or civil engineering works.

SLOPE STABILITY ANALYSIS FOR OPEN PITS 1

Analyses of a deep wall in an open pit mine in the Peruvian Andes are used to compare limit equilibrium methods (SLIDE) with distinct element methods (UDEC) when the stability is controlled by rock mass strength. The pit wall has an overall slope angle of 37º and …

CONSIDERATIONS IN THE OPTIMISATION OF BENCH FACE ANGLE …

International Symposium on Stability of Rock Slopes in Open Pit Mining and Civil Engineering Ian de Bruyn _____ Page 558 height, bench face angle and berm width can be used in the slope design. All geometrical pit slope elements referred to here are illustrated in Figure 1. The bench height, bench face angle and berm width geometries must be ...

Basics of an open pit mine - Mine Engineer.Com

Several benches may be in operation simultaneously in different parts of, and at different elevations in the open pit mine. Open pit mines can be used in coal mining, and they are used extensively in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals.

Open-pit mining - Wikipedia

Open-pit mining causes changes to vegetation, soil, and bedrock, which ultimately contributes to changes in surface hydrology, groundwater levels, and flow paths. Additionally, open-pit produces harmful pollutants depending on the type of mineral being mined, and the type of mining process being used.

Investigation of Excavator Performance Factors in …

This study presents the effect of excavator model, loading operation location, shift availability and truck-shovel combination on loading cycle time and productivity of an open-pit mine. The loading cycle time was used to assess the material loading system performance which is one of the key components of the total cycle time for material ...

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