Methods of extraction in Opencast mine

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This document discusses different methods for extracting coal from an opencast mine containing three coal seams separated by interburden layers. It shows a diagram of the coal seams with overburden and interburden layers not to scale. The document requests comments on observing the overall pit slope angle used for extraction.

Technology

Different Methods of Extraction
in Opencast Mine

Venkat

Assumption - A block consisting of 3 coal seams

Coal Seam

Over Burden

30m Inter Burden

Inter Burden
30m

Not to Scale

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