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Different Methods of Extraction
       in Opencast Mine




                            Venkat
1
Assumption - A block consisting of 3 coal seams
Coal Seam




                Over Burden

30m             Inter Burden



                Inter Burden
30m




 Not to Scale
Observe the Overall Pit Slope Angle
2
Assumption - A block consisting of 3 coal seams
Coal Seam




                Over Burden

30m             Inter Burden



                Inter Burden
30m




 Not to Scale
Observe the Overall Pit Slope Angle
Please Comment…
Thanks

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Methods of extraction in Opencast mine