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Metal Mine ›› 2011, Vol. 40 ›› Issue (03): 19-21.

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Depth Effect on Dynamic Fracture Toughness of Rock

Man Ke1,2   

  1. 1.Beijing Research Institute of Uranium Geology;2.China University of Mining and Technology(Beijing)
  • Online:2011-03-10 Published:2011-03-11

Abstract: According to the standard testing method of ISRM,the dynamic fracture toughness for the basalt samples in different depth has been measured.And the rules of the dynamic fracture toughness increasing with the depth were obtained.And rocks in different depth have different dynamic fracture due to its different strength.

Key words: Dynamic fracture toughness, Depth, Strength, CCNBD, SHPB