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Coal mining is the process of extracting coal from the ground Coal is valued for its energy content and since the 1880s has been widely used to generate electricity

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Mining in Europe has a very long history Examples include the silver mines of Laurium which helped support the Greek city state of Athens Although they had over

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Longwall systems have their own hydraulic roof supports which advance with the machine as mining progresses As the longwall mining equipment moves forward overlying rock that is no longer supported by coal is allowed to fall behind the operation in a controlled manner The supports make possible high levels of production and safety Sensors

The Coal Operators Conference has been held at the University of Wollongong since 1998 The Conference is organised jointly by the Illawarra Branch of The

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Surface Area mining also known as quot strip mining quot this approach is common in the West where coal seams are flat and lie close to the surface

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SURFACE COAL MINING MANAGEMENT Paul Westcott The geological characteristics of surface coal mining which distinguish it from other surface mining are the nature of

Underground Mining Two dominant methods together account for the vast majority of underground coal mining room and pillar and longwall mining

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