Journal of Mining & Safety Engineering ›› 2017, Vol. 34 ›› Issue (4): 637-643.

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Model of the roof fracture in pitching diagonal mining panel and its field measurement

  

  • Received:2016-10-11 Online:2017-07-15 Published:2017-08-08

Key words: steep seam, thin seam, pitching diagonal mining, parallelogram plate