open cast mining and underground mining

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    What is the difference between opencast & underground mining?

    What is the difference between opencast & underground mining? Mining is something quite extraordinary. When we think of mining we think dusty, dark, unflattering settings. In contraire it is quite in fact the opposite. So what is open cast mining? Open cast mining is the removal of rocks or sediments that contains minerals, with economically important elements. The advantages of open cast ...

    LECTURE -2|| OPENCAST AND UNDERGROUND MINING|| …

    21.11.2018 · In this video we talk about types of mining method and advantages and disadvantages of them. Do subscribe my channel if you think we are doing a great job. Like, comment and share our video as ...

    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.

    What are the hazards of open cast mining? - Answers

    Open cast mining is generally considered safer than underground mining but there are still some dangers such as: 1)Because opencast mining is done in the form of ledges one can easily fall off one ...

    Coal is mined by two methods – surface or ‘opencast ...

    Coal is mined by two methods – surface or ‘opencast’ mining and underground or ‘deep’ mining. By Prasetianto Mangkusubroto. The choice of mining method is largelydetermined by the geology of the coal deposit. Underground mining currently accounts for about 60% of world coal production, although in several important coal producing ...

    What are the advantages of open-cast mining? - Quora

    Open-cast mining has several advantages compared to underground mining, these are:- * Open-cast allows for high tonnages to be moved hence economies scale * Safe as workers are not working under disturbed roof * Open-cast trucks have higher payloa...

    Open Pit Mining Pros & Cons | Sciencing

    Open pit mining is also called strip mining because the extraction process destroys vegetation, reduces habitats and pollutes the environment. Mining proponents argue that the process is more efficient, cost effective and safer than shaft mining. Environmental regulations help mitigate damage.

    Open Cut and Underground Mining | iMINCO

    Underground Mining. Underground Mining is generally used for areas where the mineral seam is too far underground for open cut mining to be of use. A tunnel, called a decline, is created to allow workers and machinery to reach the location of the minerals. Stope mining is used for most hard rock mining of minerals such as copper, silver, lead ...

    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 …

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

    Although both methods have their benefits and drawbacks, underground drilling may just be the cost worthy selection for you Mining for coal depends on many variables. The geology and environmental aspects play a vital role, but depth and quality of the seam is what brings home the bacon. Depending on where the seam (profitable bed of coal) is ...

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