Mining method selection by multiple criteria decision making tools by M.R. Bitarafan and M. Ataei Synopsis Mining method selection is the first and most important problem in mine design. In this selection some of the parameters such as geological and geotechnical properties, economic parameters and geographical factors are involved.Get Price
Key words Equipment Selection, Surface Mining, ShovelTruck Productivity, Mining Method Selection, MultiCommodity Network Flow Introduction The general Equipment Selection Problem ESP is to choose a collection of compatible, but not necessarily homogeneous, items of equipment to perform a speci ed task. In many applications,
From Queen39s Mine Design Wiki Note Oil and gas deposits are not discussed here. Underground mining methods are the focus of this article. The selection of a mining method for an ore deposit is based on many factors that are driven by the economics and profitability of the mine for a company.
and processing system. Therefore, the system of mining method selection is a large system with multiple dimensions. The interactions between subsystems are complex. The subsystems are connected with high complexity, not only in structures but also in content. There are many factors affecting the system of mining method selection, like the
iii Method of Mining The method of mining depends on the mode of occurrence of the ores. The opencast mining is the cheapest, while shaft mines are very expensive. The cost of mining also depends on the scale of operations. If the mining has been done at a large scale, the capital and running costs can be offset. iv Accessibility
Mining method selection is the first and most important problem in mine design. In this selection some of the parameters such as geological and geotechnical properties, economic parameters and
The strength of the ore and the surrounding rock is one of the most significant geotechnical factors in mining method selection. The strength and related stability of the rockmasses are important for all types of excavation, and are assessed using rockmass classification systems throughout a mine.
whereas in Figure 2b one is mining by manentry methods. This necessitates that the factor of safety for the man entry be substantially greater than the nonentry approach. Figure 2 Mining under a consolidated back. 2. Design Constraints Figure 1 shows the factors that have to be accounted for in terms of mining under an engineered back. These
Optimum equipment and method selection for high selective excavation at SLE Identification of main factors related to equipment selection Firstly, three priority degrees of effective parameters were determined according to the mining and geological conditions in order to select optimum machinery and mining methods.
There are four main mining methods underground, open surface pit, placer, and insitu mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow and less valuable deposits. Placer mining is used to sift out valuable metals from sediments in river channels, beach sands, or other environments.
two methods of underground mining in the West 1 room and pillar with continuous miners, and 2 longwall mining recent underground mining technology developments in Europe and the Western United States that could affect the production of coal from Federal leases and factors affecting the choice of these underground coal mining technologies in
Selecting a Mining Method. Selecting which mining method to use is one of the important decisions a mining company has to make. The mining method selected should maximize cost recovery and profitability of operations, minimize ore dilution, and permit the most efficient removal of ore.
These surface mining methods are considered to be more efficient and economical in extracting minerals as compared to most methods of underground mining. In fact, it can extract almost 90 of ore from a deposit. For this reason, surface mining is the most widely used method in North America.
2.1. Studies on mining method selection. The problem of underground mining method selection has been studied in the literature. Boshkov and Wright 1973 proposed a classification system which was one of the first qualitative classification schemes. Morrison 1976 suggested a selection chart for mining method selection.
Under similar conditions, surface mining is generally regarded to be more advantageous than underground mining. In the selection between surface and underground exploitation methods, there are a number of most significant factors must be briefly
appropriate mining method is selected based on technical, economic, and environmentally accountable considerations. The first step in selecting the most appropriate mining method is to compare the economic efficiency of extraction of the deposit by surface and underground mining methods . This section reviews surface mining methods and
Choosing a mining method. The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many technological, economic, and social factors.
Figure shows Open pit Mining method 2 February 2016 Prof. Dr. H.Z. Harraz Presentation Mining Methods, Surface mining Benching Bench level intervals are to a large measure determined by the type of shovel or loader used, and these are selected on the basis of the character of the ore and the manner in which it breaks upon blasting and supports
Mining method selection by integrated AHP and PROMETHEE method Article PDF Available in Anais da Academia Brasileira de Cincias 84121933 March 2012 with 227 Reads How we measure 39reads39
Mining method selection by multiple criteria decision making tools by M.R. Bitarafan and M. Ataei Synopsis Mining method selection is the first and most important problem in mine design. In this selection some of the parameters such as geological and geotechnical properties, economic parameters and geographical factors are involved.
FACTORS, COST, AND TIME CONSIDERATIONS Presented by Mark A. Williams Executive Vice President Engineering Services Key Physical Features in the Selection of an Underground Mining Method Coal seam thickness Previous mining activities. Other Factors in the Selection of an Underground Mining Method Regulations Need for