نتایج جستجو برای: pit mine production scheduling
تعداد نتایج: 697924 فیلتر نتایج به سال:
This paper discusses the optimization of the mine design and scheduling as it is applied at Anglo Platinum and more specifically, the rationale for and use of the Anglo Platinum Mine Optimisation Tool (APMOT), which has been jointly developed between Anglo Platinum and Cyest over the past four years. Mine optimization is an inherently iterative process since all facets of mine design and schedu...
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 ...
Noise emissions are a significant environmental impact caused by the mining industry in all technological phases of surface mining, mineral processing, and waste disposal. This paper presents role noise assessment control large-scale operations. Mine planning develops model operations, ore excavation, dumping scheduling processing rates, including spatial distribution activities. Such level min...
Planning and design procedure of an open pit mining project just can be started after ultimate pit determination. In the carried out study in this paper it was shown that the most important factor in ultimate pit determination and in consequence in the whole planning and design procedure of an open pit mine is the metal price. Metal price fluctuations in recent years were exaggerated and impose...
In this study, a hybrid intelligent model has been designed to predict groundwater inflow to a mine pit during its advance. Novel hybrid method coupling artificial neural network (ANN) with genetic algorithm (GA) called ANN-GA, was utilised. Ratios of pit depth to aquifer thickness, pit bottom radius to its top radius, inverse of pit advance time and the hydraulic head (HH) in the observation w...
An orebody model constitutes a threedimensional accumulation of mining units (blocks). The available metal content in a mining unit and the economic parameters, such as metal price, mining cost, processing cost, marketing or selling cost, as well as the metallurgical recovery, are used to calculate the economic value of a particular mining block. A mining block with a positive value is classifi...
The standard optimization of open-pit mine design and production scheduling, which is impacted by a variety factors, an essential part mining activities. metal uncertainty, connected to supply crucial component in optimization. To address uncertainties regarding the economic value blocks general problem optimization, minimum-cut network flow algorithm employed give optimal ultimate pit limits p...
Long-term production planning design is a major step in mine planning, because it determines the economic outcome of a project. Also long-term planes act as a guide for medium and short-term production scheduling. Because there are a large number of blocks within the ultimate pit limit, the pit can be divided into a series of sub-pits commonly called push backs, cut backs or phases. These push ...
A classical problem in the mining industry for open-pit mines involves scheduling the production of notional three-dimensional production blocks, each containing a predetermined amount of ore and waste. That is, given operational resource constraints on extraction and processing, we seek a net present value-maximizing schedule of when, if ever, to extract each block in a deposit. We present a v...
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