›› 2012, Vol. 33 ›› Issue (S2): 201-204.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Classification of rock masses based on Hoek-Brown criterion and its application to underground projects

LI Yan-Heng, FENG Li, LUO Li-Ping   

  1. The Second Artillery Engineering Design Research Institute, Beijing 100011, China
  • Received:2012-08-24 Online:2012-11-22 Published:2012-12-11

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Abstract: According to Hoek-Brown failure criterion and equivalent-area principle, strength parameters of engineering rock masses can be estimated by data from lab test and field geological survey. These parameters are naturally applied to engineering classification of rock masses. In terms of deep-buried engineering, this classification practically reflects local environment and mechanical states of rock even better than traditional BQ classification.

Key words: Hoek-Brown criterion, geological strength index, strength parameters of rock masses, BQ classification

CLC Number: 

  • TU 452
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