Evaluation and Risk Analysis of Open-Pit Mining Operations
نویسندگان
چکیده
منابع مشابه
Scheduling Tools for Open-Pit Mining Operations
In open-pit mining operations, there are several levels of planning, each of which passes down restrictions to the level below. Each planning task is to determine the order in which material should be mined and how it should be processed, such that blending and utilisation targets are met. The mining operations are subject to various constraints on equipment use, maintenance and other resources...
متن کاملInvestigation of Bishop’s and Janbu’s Models Capabilities on Slope Stability Problems with Special Consideration to Open-Pit Mining Operations
One of the most effective parameters in economics of open-pit mines is the pit slope angle, so that the slope angle more than the optimum value increases the probability of a large failure in the pit wall and the slope angle less than the optimum value leads to increasing stripping ratio and reducing net present value of mine. Therefore, in this paper, considering the limit equilibrium methods ...
متن کاملAn Uncertainty-based Transition from Open Pit to Underground Mining
There are some large scale orebodies that extend from surface to the extreme depths of the ground. Such orebodies should be extracted by a combination of surface and underground mining methods. Economically, it is highly important to know the limit of upper and lower mining activities. This concern leads the mine designers to the transition problem, which is one of the most complicated problems...
متن کاملa comparative analysis of the marginal microleakages of two pit and fissure sealans, conseal-f and conseal clear
چکیده ندارد.
15 صفحه اولRecent applications of operations research and efficient MIP formulations in open pit mining
Mixed integer programming (MIP) models are used for long-term production scheduling of open pit mines. However, formulations based on binary variables for mining blocks require too many variables and are often difficult or impossible to solve. This paper presents and tests alternative MIP scheduling models that have reduced the number of binary variables and solution times, thus increasing effi...
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ژورنال
عنوان ژورنال: BHM Berg- und Hüttenmännische Monatshefte
سال: 2019
ISSN: 0005-8912,1613-7531
DOI: 10.1007/s00501-019-0854-9