open pit mining vs underground mining

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

Aug 22 2017 · Working underground is usually a hot noisy humid and dark business but working in an open pit mine can expose workers to weather conditions which can cause problems as well Working in the mining industry in any capacity is hard work that demands exceptional concentration and talent in order to stay safe in the environment of heavy materials heavy equipment and hard work

Oct 21 2017 · Overall when compared to other methods opencut is much safer Opencut mining is responsible for 65 percent of the raw coal production in New South Wales Opencut is also a good method for gold and copper Underground mining Underground mining occurs underground through the creation of tunnels These tunnels go deep into the mineral seam

Aug 22 2020 · “Arctic is a special project due to its unique highgrade polymetallic nature The only other time that I’ve seen a project of this quality where the grades were similar was in an underground mining scenario said CEO Tony Giardini However Arctic is mineable in an open pit scenario

Underground mining tends to have a better reputation when it comes to geomorphic impacts compared to other mining methods ie open pit mining The truth of the matter is that more often than not open pit mining and underground mining go handinhand

Openpit Mining Removing ore to leave a crater Quarrying An openpit mine for construction materials Strip Mining Ore is removed in parallel strips Mountaintop Removal Top of a mountain is blasted to remove deep ore Dredging Ore is removed from a river bottom The main methods of underground mining are

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

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 costeffective way to get your materials to the surface

Aug 22 2020 · “Arctic is a special project due to its unique highgrade polymetallic nature The only other time that I’ve seen a project of this quality where the grades were similar was in an underground mining scenario said CEO Tony Giardini However Arctic is mineable in an open pit scenario

Underground mining tends to have a better reputation when it comes to geomorphic impacts compared to other mining methods ie open pit mining The truth of the matter is that more often than not open pit mining and underground mining go handinhand

Open pit mining Quarry Underground mining with shaft Done for those minerals which lie close to the surface of the earth Used for mining minerals at shallow depths Minerals which lie at great depths below the surface of the earth Used where commercially useful minerals are found near the surface

Uranium resources can be extracted from the ground in three ways open pit underground and insitu leach ISL Open Pit Mining Open pit mining also known as strip mining is the removal of surficial soils and uneconomic rock to get at the ore below Ore grades are normally less than 05

Jul 23 2020 · What is open pit mining Open pit mining is the most common mining technology when it comes to new mines In this technique the soil is excavated and the mineral separation and the remaining soil material occurs on the surface The first step in this process is the extraction of the ore beta with high mineral grade

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

Learn more about openpit mining 2 Underground mining Underground mining is used to extract ore from below the surface of the earth safely economically and with as little waste as possible The entry from the surface to an underground mine may be through a horizontal or vertical tunnel known as an adit shaft or decline

Open pit mines can be used in coal mining and they are used extensively in hard rock mining for ores such as metal ores copper gold iron aluminum and many minerals In a open pit coal mine the pit bottom would be the bottom mined coal seam elevation since it is usually feasible to extract multiple seams when surface mining coal

• The physical environment under which mining equipment operates is less than ideal • The operating environment of the mine is dynamic with many unknowns that can affect the equipment utilization drastically In this study OEE of shovels and trucks have been considered since they are the main equipments for the most of the Open Pit Mines

Open pit mining is a technique used to extract copper ore near the earths surface Open pit mining is the most widely used technique of mining copper today It is accomplished by creating and using benches or terraces to gradually reach deeper under the earths surface Underground mining is used when the copper ore is not near the earths

Dec 23 2018 · Openpit mining is either done with a fleet of haul trucks some now automated or an inpit crushing and conveying system IPCC Underground mines are accessed via a shaft or ramp

Sep 26 2013 · A plan for starting underground mining operation at Nanfen has been underway since 2011 as maintaining the mine slope stability is becoming difficult with the gradual increase of the pit’s depth Aitik Aitik open pit mine located about 60km north of the Arctic Circle in Northern Sweden is currently 430m deep The open pit is expected to

Mining Operations Data obtained from the Mine Safety and Health Administration MSHA indicated a total of 925 underground 62 and 13982 surface 938 mining operations Employees A total of 59922 employees or 62565 fulltime equivalent FTE employees were reported to MSHA as working at underground mining locations in 2008 This is