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

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small scale open cast mining equipment Home 187; small scale open cast mining equipment Coal mining When coal seams are near the surface, it may be economical to extract the coal using open cut (also referred to as open cast, open pit, mountaintop removal or strip) mining .

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Dec 21, 2015· The most common types of mining equipment vary depending whether the work is being carried out above or below ground or mining for gold, metals, coal or crude oil. From drilling machines to excavators, crushing and grinding equipment – the mining .

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It is a piece of publicly accessible federal land that is open for mineral entry and claiming. Filing a mining claim with the Bureau of Land Management gives you the right to extract the minerals on the claim, but does not give you exclusive rights to the property itself. In the Lower 48, the maximum size of a mining claim is 20 acres per person.

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Openpit 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 openpit mining. The removal of this material is known as stripping.

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Smallscale mining, therefore, has a major impact on the employment situation in the developing world, especially in rural areas where there are few alternatives. Moreover, the enactment of relevant legislation and effective legalization of smallscale mining has had a positive impact on the economies of certain developing countries.

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