Journal of Mining & Safety Engineering ›› 2017, Vol. 34 ›› Issue (1): 141-147.

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Study on the influence of elliptical hole on strength and deformation characteristics of sandstone sample

  

  • Received:2015-05-12 Online:2017-01-11 Published:2017-01-06

Key words: sandstones, elliptical hole-defects, dip angle of major axis, peak strength, failure modes