›› 2005, Vol. 26 ›› Issue (12): 1996-2000.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on constitutive model and permeable coefficient tensor of rock under tensile load with micromechanics (Ⅱ)： Anisotropic permeable coefficient tensor and example

WEI Li-de1, YANG Chun-he1, XU Wei-ya 2   

  1. 1. Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China
  • Received:2004-07-16 Online:2005-12-10 Published:2014-01-12

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Abstract: There are a few paper discussed establishing permeable coefficient tensor of rock under tensile load until now. In this paper, an anisotropic permeable coefficient tensor of rock under tensile load, thingking about hydraulic pressure, microcrack extending and distortion, is established. The equations of the theories in previous paper and this paper are deduced for rock under axial tensile loading. The presented models are compared with experimental data. The comparative results show that the constitutive model can reflect all phases of stress-strain curve and the character that hydraulic pressure make rock strength lower. The permeable coefficient tensor can reflect the anisotropy and the evolvement of seepage in rock. The permeable coefficient tensor can be applied to rock mass too.

Key words: rock mechanics, rock, permeable coefficient tensor, anisotropy, damage

CLC Number: 

  • TU 452
  • 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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