Open pit mining is usually done through a a series of mining steps commonly known as pushbacks Metallized in open pit mining each push considers the mining of one or more benches at the same time the main operational tasks include drilling blasting loading and transportation
·Open Pit Mining Awwad H Altiti Rami O Alrawashdeh and Hani M Alnawafleh Abstract Open pit mining method is one of the surface mining methods that has a traditional cone shaped excavation and is usually employed to exploit a near surface nonselective and low grade zones deposits It often results in high produc
There are different ways open pit mining can be carried out depending on the type of mineral and the surrounding environment 1 Open pit Metal Mining This type of open pit mining is used to extract metals such as copper gold iron and aluminum These metals are important for making electronics vehicles and construction materials
4 ·This is the first and most essential step of the mining process in order to open a mine companies must first find an economically sufficient amount of the deposit an amount of ore or mineral that makes exploitation worthwhile Open Pit Mining is a technique of extracting rock or minerals from the earth by their removal from an open air
·Overview of Open Pit Mining Process Open pit mining which is also known as open cast or open cut mining is a type of surface mining process that extracts rock or minerals from the ground from an open air pit This type of mining process is mostly used in the mining industry around the world as it does not require the presence of tunnels
3 ·Open pit mining clearly offers a number of economic advantages over underground mining especially now that mineral processing technology has advanced to the stage where very low grade ores can be treated profitably 100 to 150 years ago this was not the case and mining was still much more selective
·After the end of open pit mining the residual orebody under the eastern final slope began to be exploited A sublevel caving method Figure 2 a with horizontal slice mining from top to bottom was employed The orebody beneath the eastern slope is divided from top to bottom into five horizontal layers the elevation ranges for the first to the fifth layer are −51 m to
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