Strategic Mine Planning for Open Pit Mines
In summary, some of the key factors include pit access considerations, minimum mining width, ramp design parameters (ramp width, gradient, max road curvature, number of ramps and switchbacks etc.) as well as other geometrical slope considerations (such as the bench height and bench interval, bench face angle, berm width etc.) and safety ...
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A RISK CONSEQUENCE APPROACH TO OPEN PIT SLOPE …
Figure 1: Generic Flow-chart of the open pit slope design process. 2.1 Risk within the Mining Context In evaluating the geotechnical risk profile for an open pit mine, it is essential that these risks be seen in the context of the total mine planning risk. The geotechnical discipline
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Guidelines and considerations for open pit …
It is recognised that some of the course participants on the Deswik software "Design for Open Pit Metals" course may be new to pit design and may need some advice on how to undertake a pit design. ... Inputting …
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Loading and Haulage Equipment Selection for Optimum …
Equipment selection is one of the most important aspects of open pit design. Mining costis mainly affected by the number and capacity of equipment. Equipment selection for open-pit mines is a major ... The design factor provides insight into the quality and effectiveness of detail design, including the sophistication of human-machine interface ...
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Determining the Most Effective Factors on Open Pit Mine …
The optimization of open pit mine design under uncertain factors is one of the most crucial and challenging jobs in the mine planning and design process. Complex geological structures escalate the ...
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Planning Considerations For Transition From Open Pit To …
Key considerations to evaluate are: open pit stability, shaft stability, dilution, mud rushes and air blasts, and mining method selection. Planning Considerations: The efficient transition from open pit mining to an underground operation requires extensive planning. For a large mining operation, planning could last as long as 20 years.
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FACTORS IN THE DESIGN OF OPEN PIT SLOPES – A …
The South African Institute of Mining and Metallurgy International Symposium on Stability of Rock Slopes in Open Pit Mining and Civil Engineering Peter Stacey _____ Page 1 FACTORS IN THE DESIGN OF OPEN PIT SLOPES – A REVIEWER'S PERSPECTIVE Peter Stacey Stacey Mining Geotechnical Ltd. ABSTRACT
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Application of Lerchs-Grossman Pit Optimization to the Design of Open …
Definition of the optimum open pit, whether an intermediate phase or final design, will be sensitive to many factors. The most basic will include geological and mining constraints, mining and processing costs, pit slopes and product prices. The application of the three dimensional Lerchs-Grossmann pit optimization procedure to this task is described for a range of gold …
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DESIGN OF OPEN PIT SLOPES
and general configuration of the slope for an open pit is a critical part of pit design. With the increased sophistication of pit design, brought about largely by the use of computers, the demand for more precise slope information has become greater. However, the complexity of the rock mass associated with a typical open-pit ore
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INVESTIGATING SLOPE STABILITY IN AN OPEN PIT …
Slope stability is critical for final wall in open pit mining operations. Not only is slope failure costly to manage, it might also be accompanied by loss of lives. Factor of safety is very critical during the slope design phase, however, the execution of …
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GEOTECHNICAL CONSIDERATIONS IN OPEN PIT MINES
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 …
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Open Pit Mine Planning and Design
Micromine 2016 scheduler is an attribute driven tool that uses 3D solid wireframes to create mining tasks for open pit mine planning and design. Before creating a scheduling project, an engineer must prepare their data so that it can be used for mine scheduling. This is a key element in open pit mine planning and design.
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When is a rock engineering design acceptable
Factor of safety > 1.3 for temporary slopes with minimal risk of damage. Factor of safety > 1.5 for permanent slopes with significant risk of damage. Probability of failure of 10 to 15% may be acceptable for open pit mine slopes where cost of clean up is less than cost of stabilization. Vertically jointed rock slopes. Toppling of columns separated
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OneMine | Geotechnical Factors In Open Pit Mine Design
GENERAL INTRODUCTION The object of this paper is to discuss those aspects of open pit mine design which are affected by geotechnical factors. The temptation exists for some practitioners of geotechnical engineering to believe that this relatively new engineering discipline is the 'be all and end all of mining.' In the opinion of the authors, this is fallacious but, as our …
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Delimitation of the Final Pit in Open Pit Mines Using the
The main goal of this design in open-pit mining is to establish, prior to operations, the definitive layout, and dimensions of the mine, considering a series of fundamental factors. Such factors encompass the geology and topography of the site, the distribution of minerals, geotechnical restrictions, and slope stability [9], environmental ...
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Haul Road Design Considerations
Haul Road Design Considerations. Recognizing, managing, and eliminating safety critical defects on mine haul roads. By Dr. Roger Thompson. The design and management of mine roads has developed over the past decade, both in response to the requirements of mine operators for more safe and efficient haulage systems, and the truck manufacturers' …
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PIT SLOPE DESIGN AND RISK – A VIEW OF THE …
International Symposium on Stability of Rock Slopes in Open Pit Mining and Civil Engineering Mr T D Sullivan Page 52 The title of this paper Pit Slope Design and Risk, implies the geotechnical input to a safe and efficient open pit mine is contained only in …
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Research on Intrinsic Safety Method for Open-pit Mining
Its application in open-pit mine will help to manage unsafe factors, reduce danger, establish long-term safety mechanism and eventually improve the level of intrinsic safety of open-pit mining system. ... Dump is an important adjuvant installation for open-pit mine. Its design directly influences the daily mining operation and downstream ...
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K-MINE Open Pit Mine Design Software
The Dynamic Open Pit Design is a part of the Open Pit Design module. Create huge constructions of mining activities, such as Final Pit Design, Final Dumps Design, Pushbacks, and Pit Expansion for the required period. Create Ramp Systems, Add Switchbacks, change the start of the Ramps, and all of this with one mouse click, etc…
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Cost-Benefit Design of Open Pit Slopes
Cost-Benefit Design of Open Pit Slopes Richard D. Call* The objective of an open pit mine plan is to obtain the maximum ore with the minimum of overburden stripping up to the limit where the incremental stripping cost equals the ... Factors which influence haulroad repair costs include: 1) sector height, 2) average failure height, ...
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The safety factor of a heterogeneous slope in an …
A landslide of the north open-pit (323N) and the stability and design optimization of the south open-pit (323S) slope in the 323 belts of the Tanjianshan Gold Mine were studied.
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In-Pit Crushing and Conveying Systems in Long-term …
In-Pit Crushing and Conveying Systems in Long-term Open Pit Mine Planning – Literature Review Alireza Kamrani, Yashar Pourrahimian and Hooman Askari-Nasab Mining Optimization Laboratory (MOL) University of Alberta, Edmonton, Canada ABSTRACT
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Open Pit Optimisation and Design: A Stepwise …
This paper demonstrates a stepwise approach to design an optimal open pit to exploit the deposit by using Surpac and Whittle software. Using the exploration data as the primary input, Surpac...
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Slope Design and Implementation in Open Pit Mines: …
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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Equipment Selection and Sizing for Optimum …
This paper aims to select the appropriate size and number of loading and haulage equipment for the optimal planning and design of an open pit mine (Quarry). The specific objectives include to: Estimate the reserve of the …
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Estimating Mining Factors (Dilution and Ore Loss) in Open Pit …
Large open pit mines are driven by the economies of scale that are achieved at the cost of less selectivity in the discrimination of ore and waste. Planning for these mines is facilitated by the use of block models for mine design, scheduling and the conversion of Mineral Resources into Ore Reserves._x000D_ This paper reviews various approaches ...
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Slope Design and Implementation in Open Pit Mines: …
The backfilling of the pilot pit of the mine, lead to the assurance of the mine walls stability, by increasing the values of safety factors with a rate of more than 30 %. Originality.
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Open Pit Planning and Design | Request PDF
The design of ramps in open pit mining is a complex problem that, even though it has a great impact in the value of a project, does not rely on optimization tools as other problems like the ...
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Open Pit Mining
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. It often results in high productivity and requires large capital investments, low operating costs, and good safety conditions. The main topics that will …
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(PDF) Application of Surpac and Whittle Software in Open Pit
Ghana Mining Journal, 2018. This paper demonstrates the application of Surpac and Whittle in open pit optimisation and design. Exploration data on the Tabakoto deposit of AngloGold Ashanti Sadiola Mine (AASM) has established 13 652 661 t of gold resource with an average grade of 1.15 g/t that could be mined using open pit method.
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