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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.
The mining method selected is determined by the size, shape, orientation and type of orebody to be mined. The orebody can be narrow vein such as a gold mine in the Witwatersrand, the orebody can be massive similar to the Olympic Dam mine, South Australia, or CadiaRidgeway Mine, New South width or size of the orebody is determined by the grade as well as the distribution of the ore.
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
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.
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.
In any discussion of Methods of Underground Mining Comparison, one is repeatedly confronted with the difficulty of dealing with so many variable conditions. It is not an exact science and in the choice of a method each varying factor has a certain weight, which, in many cases, experience alone can determine.
The selection of underground mining methods is primarily based on the geologicalspatial setting of the deposit. Candidate methods can therefore be chosen and ranked based on If backfilling to fill minedout spaces with rock, soil or tailings is part of the underground operation for improving mining recovery, safety, and mitigating
The AHP is used to analyze the structure of the mining method selection problem and to determine weights of the criteria, and PROMETHEE method is used to obtain the final ranking and to make a
For an introduction to metals and mining, please read the following sections for an overview to the industry Metals amp Mining Basic Materials 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
Mining Mining Solution mining Natural brine wells are the source of a large percentage of the worlds bromine, lithium, and boron and lesser amounts of potash, trona sodium carbonate, Glaubers salt sodium sulfate, and magnesium. In addition, artificial brines are produced by dissolving formations containing soluble minerals such as halite rock salt sodium chloride, potash
Abstract. The paper presents a scientific approach in mining method selection for deeper parts of 34Svinja Reka34 ore deposit. Rational mining method selection include in depth analysis of the all important montangeologycal parameters of ore deposit, as much as technical and economical indicators.
productivity. In surface mining applications, the ESP addresses the selection of equipment to extract and haul mined material, including both waste and ore, over the lifetime of the mining pit. In this paper, we focus speci cally on the truck and loader equipment selection problem for surface mines.
The first way in which proposed mining projects differ is the proposed method of moving or excavating the overburden. What follows are brief descriptions of the most common methods. 18.104.22.168 Openpit mining Openpit mining is a type of strip mining in which the ore deposit extends very deep in the ground,
the mining technologies currently in use on Federal leases and the potential for commercial mining technologies to extract Federal coal reserves from deep underground seams. The chapter discusses three surface mining techniques that are used in the West 1 area strip, 2 open pit, and 3 terrace pit two methods of underground mining in
Mining method selection transition depth openpit underground combined mining. 1. Introduction . Naturally, ore bodies come in every imaginable geometric shape. While surface hard rock mines apply the openpit method to almost any ore configuration, a large number of underground mining methods have been developed primarily in response to the
1707 The 1 st International Applied Geological Congress, Department of Geology, Islamic Azad University Mashad Branch, Iran, 2628 April 2010 attribute decision making technique. Fig.1 indicates effective parameters in selection fleet types 2. Expert System This is one of the first systems planned for selecting equipments in surface mining in 1987.
12.5 Mining method selectionThe mining principles and methods have evolved to meet the geomechanical and operational problems of various cases.Final choice of mining method will reflect both the engineering properties of the orebody and its setting, and the engineering attributes of the various methods such as mining scale, production rate
The mining process is responsible for much of the energy we use and products we consume. Mining has been a vital part of American economy and the stages of the mining process have had little fluctuation. However, the process of mining for ore is intricate and requires meticulous work procedures to be efficient and effective.
Underground mining method selection is one of the most important decisions that mining engineers have to make. Choosing a suitable underground mining method to extract a mineral deposit is very important in terms of economics, safety and productivity of mining operations.
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