underground mining vs open pit mining - YouTube

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blast pattern – Mining and Blasting

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 ...

Difference Between An Open Mine And An Underground Mine

3 difference between open pit mining and underground . Open Cut and Underground Mining iMINCO. 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 method.

Open-pit mining - Wikipedia

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.

The Mining Life: Open Pit vs. Underground - MICROMINE

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 man-made characteristics that make it unique.

What are the advantages and disadvantages of surface or ...

Advantages of Underground Mining are: * It allows minerals to be extracted from deep underground * It doesn't create a mess like open cut or surface mining * Does not affect the physical ...

Underground Mining Methods — New Pacific Metals

Depending on the mineral being mined and the nature of the deposit, there are many different underground mining methods that can be implemented. New technology has enabled greater productivity and safer mining in underground operations, which has also helped decrease the cost of such production methods. Cut and Fill Mining

Underground v.s. Surface Coal Mines: Is Deep Drilling ...

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 ...

Coal mining - Choosing a mining method | Britannica.com

Coal mining - 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, …

What is the difference between open-cast mining and ...

Oct 20, 2017· Quarrying means exploitation of big rectangular blocks of rocks like marble, sandstone. And there benches are almost 90 degree because of very hard competent rock and good slope stability. Opencast mining is the exploitation of coal and other bed...

THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT …

THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT MINING PROJECTS* Anoush Ebrahimi, P. Eng., Ph.D. ... Dilution also increases the cut-off grade which in turn reduces the overall ore utilization of a mine. In some cases, to take advantage of economies of scale, mining operations tend to plan for higher ... Figure 1A mining block in an open pit and ...

NSW Mining Methods - NSW Mining

May 30, 2019· NSW has both open-cut and underground mines. Open-cut mining. Open-cut mining usually happens where mineral deposits are close to the surface. It involves blasting and removing surface layers of soil and rock to reach the mineral deposit. When the mineral seam becomes exposed, it is drilled, fractured and the mineral recovered for processing.

Underground mining (hard rock) - Wikipedia

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies.

(PDF) Effective factors investigation in choice between ...

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 [2].

The Actual Difference Between Surface and Underground Mining

Feb 23, 2018· The Actual Difference Between Surface and Underground Mining There are two ways to extract a mineral - by digging it up, or accessing it by tunnels. This pretty much sums up the comparison of surface vs. underground mining.

What is the difference between an opencast mine and an ...

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 Techniques|Surface Mines|Rock or Mineral ...

Open-pit Mining Open-pit mining, also known as opencast mining, open-cut mining, and strip mining, means a process of digging out rock or minerals from the earth by their elimination from an open pit or borrow. The word is used to distinguish this type of mining from …

Open Cut and Underground Mining | iMINCO

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 method.

What are the differences between open pit mining ...

Apr 07, 2017· Underground mining is dangerous for mine workers. In Turkey, for instance, two years ago (almost 3 years ago) one underground mining accident killed 310 workers. There are always risks of collapse, explosion and fire in such operations. ... What are the differences between open pit mining, underground mining, and strip mining? ... What is the ...

difference between and open cut mine and a underground mine

Hard-Rock Underground Mining - How Underground Mining Works ... Coal deposits, for instance, live in relatively soft sedimentary rock. ... Cut and Fill– For relatively narrow ore deposits, miners drill an access ramp ... or wastematerial, is spread into the open drift, creating a platform for the next pass. ...

Types of Underground Mining Method Comparison

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.

What is the difference between underground mining and ...

What is the difference between underground mining and surface mining? ... * It allows minerals to be extracted from deep underground * It doesn't create a mess like open cut or surface mining ...

Surface Mining Methods and Equipment

CIVIL ENGINEERING – Vol. II - Surface Mining Methods and Equipment - J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) effective for small-scale operations. Most bauxite, iron, and copper ore is mined by open pit techniques, lead and zinc ore are principally extracted by underground mining

what is the diference between open-cut and underground ...

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'.

What is surface mining and open-pit mining? Do they have ...

Sep 11, 2016· Mining activities can be broadly divided in two types 1. Underground mining 2. Surface mining Now let's talk about surface mining Depending on the topography, nature of the strata, working conditions, depth of the deposit and future use of the lan...

The Difference Between Underground Mining And Surface Mining

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.

What's The Difference Between Underground and Open Pit ...

Underground mining. What makes underground mining so expensive is getting valuable ore back to the surface, whether through a horizontal or vertical excavation passage. Compared to open pit mining, which often mines soil, gravel, and inexpensive ores, underground mining is targeted at …

Mine vs Quarry - What's the difference? | WikiDiff

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 diamond-shaped tile or pane, notably of glass or ...