difference between underground and open cast mining the difference between underground and open pit what is the difference between open pit and open cast mining; the differences between shaft mining and opencast mining Difference Between Underground And Open Cast, for emission of heat in an underground as well as opencast mineproportional to the difference between.
Feb 28, 2018· Here are the Types of Underground Mining and Their Applications , Cut and Fill Mining In this technique, ore is excavated in horizontal slices, after which, the stope (mined-out space) is filled with waste rock and cement (called a back fill) , Difference Between Surface and Underground Mining Types of Surface Mining Methods How are .
difference between and open cut mine and a underground mine difference between and open cut mine and a underground mineShanghai CCM Crushing Equipment CO,LTD As a leading global manufacturer of crushing and milling.
Conventional Methods of Surface Mining Open-pit mining and strip mining are the two major categories of surface mining which account for more than 90% worldwide surface mining production The primary differences between these mining methods are the location of the ore body and the mode of mechanical extraction
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, open-pit mining is the most common mining and ranges from very low-priced minerals to finely disseminated gold deposits
Open Cut and Underground Mining iMINCO,The many differences between open cut and underground mining are explained in an easy to understand way giving you a better understanding » Learn More Glossary of Mining Terms - Kentucky Coal Edu ion,Back - The roof or upper part in any underground mining cavity
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
EFFECTIVE FACTORS IN SELECTING SURFACE OR UNDERGROUND Before beginning a detailed economic analysis of the factors which enter into deciding whether to mine by open-pit or underground mining, and what point a change should be made from open-pit to underground mining, it is necessary to consider some general factors 
Open-pit mining is to be considered one of the most dangerous sectors in the industrial world It causes significant effects to miners health, as well as damage to the ecological land Open-pit mining causes changes to vegetation, soil, and bedrock, which ultimately contributes to changes in surface hydrology, groundwater levels, and flow paths
Aug 16, 2016· If you remove forest or green cover for mining, erosion will increase If you cut down trees, bushes, etc to mine the area (as strip mining), the open area will be subject to erosion Furthermore, the useless material that will be left without any cover will ,
Oct 16, 2017· Open-pit, open-cast 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.
An open cast mine is a generic term for the open-cut type of mine employed to extract almost all types of minerals and coal what is the difference between open cut and underground mining
Oct 12, 2012· 2 Contemplation of Blast Design: Blast designing is not a science, but knowledge, experience, studying and analyzing past practices in relation to rock strata & geology etc, makes blaster to achieve perfection Thus, for a blaster, valuable tool is the file of blast reports that he builds as he gains experience Not only do these provide evidence of the quality of his work, but they also .
From a mining engineering Web site, here is the definition of open-pit mining: "[It is] an excavation or cut made at the surface of the ground for the purpose of extracting ore and which is .
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A misfire results when explosives fail to detonate as planned during a mine blast Accidental detonation of misfires is a frequent cause of personal injury, equipment damage, and lost production In an effort to minimize these problems, the Bureau of Mines investigated the causes of misfires .
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 ,
Both are forms of surface-mining Out here in the western states of America, strip-mining is largely associated with coal; open-pits more with metal mines of various kinds I know of a small copper mine in Utah and a phosphate mine in northern Idaho that kind of operates in the area between ,
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This paper discusses the similarities and differences between the underhand cut and fill mining methods used at the Lucky Friday, Stillwater, and Galena Mines in the northwestern US (Figure 3) Each mine has developed its underhand mining system to accommodate the unique circumstances of their respective mining sit
What is the difference between open-pit 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 .
Unlike open pit, underground mining requires that you take into account a wide variety of added requirements These include complex ventilation systems, area and local ground support, and of course finding a consistent, safe, and cost-effective way to get your materials to the surface
Strip Mining Strip mining is a kind of surface mining The ore is very near to the surface of the land but has one or more layers of rock and filth on top of it To mine the ore, these layers have to be removed The steps in strip mining are similar to open-pit mining
Sep 06, 2006· Best Answer: An open cast is when it's a huge open area (with no roof, so you can look in and it lets the sun in), big enough to drive trucks around in Like if the Grand Canyon was a mine (Look up Kimberley's big hole for an idea) Open pit, is when it's actually smaller tunnels, and eventhough trucks or rail carts can sometimes go in there, it's always underground (Look up Johannesburg gold .
Open-pit mining methods are applicable to mining ore deposits that apex at or near the surface If the deposit apexes below the surface, the overburden and barren capping overlying the ore must be removed in advance of open-pit mining The removal of this material is known as stripping
Apr 21, 2014· The Difference Between Underground Mining And Surface Mining 1 The Difference Between Underground Mining And Surface Mining The process of removal of essential mineral ores or geological substances from soil or sand is called mining These minerals are of great value and are abundantly available in rocks and earth’s surface
Mining methods Mining techniques have dramatically transformed over many years, with technological advances improving efficiency and the safety and health of our people, while minimising the environmental impact of our operations NSW has both open-cut and underground min
Underground mining Underground or “deep” mining consist mostly of two methods - room-and-pillar and longwall mining In room-and-pillar, coal deposits are mined by cutting a network of “rooms” into the coal seam and leaving behind “pillars” of coal to support the roof of the mine , Open-pit mining utilizes blasting and mineral .
May 09, 2011· Open cast is when the minerals are mined from the top and make a massive big hole in the earth Underground mining is the most common and happens when you drill a shaft down to the minerals and mine them in situ - to be brought up to the earth by 'skip'
Feb 08, 2013 difference between a open pit mine and an underground mine Open-pit Mining, Opencast Mining, Open-cut Mining, Strip Mining People in few of the English-speaking countries are not likely to make a difference among an open »More detailed