›› 2005, Vol. 26 ›› Issue (9): 1461-1463.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Influence of empirical parameters m and s on rock mass strength

YU Yuan-zhong1, SONG Jian-bo2   

  1. 1.College of Civil and Architectural Engineering, Southwest University of Science and Technology, Mianyang 621002, China; 2. Office of Scientific Research, Guizhou University, Guiyang 550003, China
  • Received:2004-03-24 Online:2005-09-10 Published:2013-12-30

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Abstract: In studying the contents of Hoek-Brown strength criterion, it is easy to discover that the complicated failure of engineering rock under loads is generalized to tensile and shear failures, and that factors affecting the rock strength are interpreted with two empirical parameters in the criterion, m ( the degree of stiffness of rock) and s ( the degree of failure of rock). So there is much practical value in engineering to study the two parameters m and s that influence the strength of rock. To satisfy the digital accuracy of engineering, the article mainly describes the regulation of the parameters, influencing the accuracy of strength value of rock masses; meanwhile it points out that there is important meaning and value to raise the accuracy of the two empirical parameters. Also this paper is beneficial to applying the standard to engineerings.

Key words: Hoek-Brown strength criterion rock, strength, empirical parameters

CLC Number: 

  • TU 459
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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