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underground method. For any such block, the value used for pit optimisation must be the difference between its open pit value and its underground value. The assumption underpinning this is that for a block that can be mined by either method, if it is not mined by open pit method, it will be mined by underground method.
Difference between open pit and under ground mining . 2007/04/02Best Answer Open pit covers a large area visible above ground and is mined through roads that wind around the outside of the opening, and are mined by heavy equipment.
Dec 10, 2012· Best Answer: Open pit mining is just digging a large area like a quarry coal taken out from the pit. Underground mining is where they sink shafts into the ground tunnels run off from that point. Strip mining is a form of surface mining. The ore is .
Aug 22, 2017· The differences between the many kinds of mines, especially open pit mines and underground mines, are many, and miners tend to prefer one over the other. Every mining site has its natural and manmade characteristics that make it unique.
Underground mining. ... including mine ventilation. Surface mining. Opencast mining, otherwise known as surface mining consist of three different techniques: strip mining, openpit mining, and mountain top blasting. In general, the three processes include breaking up soil and rocks via explosives and then removing debris until coal seams are ...
What is the difference between openpit mining and underground mining? Underground mining operations attempt to follow the course of a valuable ore deposit as it winds its way in three dimensions ...
difference between open pit mine quarry and . difference between open pit mining and shaft mining. difference between open pit mining and shaft mining. difference between open pit mining and shaft mining, Mar 07, 2013 what is the difference between an open pit mine a quarry and an, Opencast mining, shaft .
and weapons. By the New Stone Age,humans had progressed to underground mining in systematic openings 2 to 3 ft ( to m) in height and more than 30 ft (9m) in depth (Stoces,1954). However,the oldest known underground mine,a hematite mine at Bomvu Ridge,Swaziland(Gregory,1980),is from the Old Stone Age and believed to be about 40,000 years old.
Mining Mining Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered. Counting against underground mining are the costs, which, for each ton of material mined, are much higher underground than on .
Jan 06, 2013· what is the difference between an open pit mine, a quarry and .. what is the difference between an open pit mine, a quarry and an underground mine with shafts?please give the answer as soon as possible and give your answer in . »More detailed
Mine is a synonym of quarry. As nouns the difference between mine and quarry is that mine is an excavation from which ore or solid minerals are taken, especially one consisting of underground tunnels while quarry is a site for mining stone, limestone or slate or quarry can be an animal which is hunted, notably mammal or or quarry can be a diamondshaped tile or pane, notably of glass or ...
What are the differences between opencut and underground mining? Open Cut Mining. There are many differences between open cut and underground mining. When minerals and deposits are found close to the surface and spread across a large distance, the best way to mine is to use the open cut mining .
Surface mining, including strip mining, openpit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.
Strip Mining vs Open pit mining : mining . Both are forms of surfacemining. Out here in the western states of America, stripmining is largely associated with coal; openpits more with metal mines of various kinds. I know of a small copper mine in Ut and a phosphate mine in northern Ido that kind of operates in the area between . Get Price
Newman et al.: A Review of Operations Research in Mine Planning 224 Interfaces 40(3), pp. 222–245, ©2010 INFORMS Crater Ore Face Bench Bench height Overburden Ground surface Ramp Haulage rode Figure 1: The schematic illustrates an openpit mine.
Oct 09, 2018· According to the mines Act 1952 "Open cast working" means a quarry, that is to say an excavation where any operation for the purpose of searching for or obtaining minerals has been or is being carried on, not being a shaft or an excavation which...
Oct 16, 2017· Openpit, opencast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. Open pit Reclamation after completion Open cast Reclamation during mining open pit ge...
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What is the difference between openpit mining and underground mining? Underground mining operations attempt to follow the course of a valuable ore deposit as it winds its way in three dimensions ...
Difference between open pit mining and shaft mining YouTubeClick to view on Bing446Feb 03 2017nbsp018332 difference between open pit mining and shaft hat is the iMINCOThe many differences between open cut and underground mining are Author Maria Bushdiffer. Difference between open pit mining quarry underground mine key differences between open ...
Jun 06, 2010· Best Answer: Open pit mining is used for ore bodies close to the surface, and is basically blasting the rock, which is then taken away by trucks to be processed. Underground mining however, is a lot more complex. Underground drive are dug to get as .
Apr 02, 2018· The Witwatersrand gold mine in South Africa is an excellent example of underground mining that exploits gold from ancient rocks at depths of up to 4 km underground. What is open pit mining. On the other hand, openpit mining is the most common mining and ranges from very lowpriced minerals to finely disseminated gold deposits.
What are the differences between opencut and underground mining? Open Cut Mining. There are many differences between open cut and underground mining. When minerals and deposits are found close to the surface and spread across a large distance, the best way to mine is to use the open cut mining .
There are only 2 paths to extracting bitumen from the oil sands: by injecting steam deep underground and pumping the oil to surface (thermal insitu), or by mining the ore and physically separating the bitumen from the sand in a processing plant. Suncor Energy has been mining the oil s
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