COAL ENGINEERING ›› 2011, Vol. 1 ›› Issue (12): 1-3.doi:

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Study on turning methods between adjacent cuts in surface coal mines

  

  • Received:2011-08-09 Revised:2011-09-19 Online:2011-12-10 Published:2011-12-10

Abstract: Abstract: Turning methods between adjacent cuts in surface coal mines is analyzed in flat terrain shallow dip coal beds and with three turning modes of two-90°, sector, and re-digging boxcut are proposed. It is recommended that the sector turning method be given priority. When the re-digging boxcut turning must be developed, the boxcut digging reversed directly from the previous cut end wall is better than from the original place the previous cut begun, and the rehandle, internal spoil void volume and the boxcut volume are calculated with different end wall slope, cutting depth and working line length between those different place boxcuts. Keywords: surface coal mine,adjacent cuts, turning method.

Key words: Keywords: surface coal mine, adjacent cuts, turning method.

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