Harmonious mining method for blocktype dip stripes .
... trending direction of the seam, and mining blocks and stripe coal ... of surface movement can be ... inclined seam with a dip angle of over 45 degrees ...
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Inclined Dip Coal Seams Surface Mining Surface mining ... Dipping or inclined Steeply dipping Steep 5. ... The coal seams dip to the south at angles between 3˚.
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