›› 2007, Vol. 28 ›› Issue (S1): 225-230.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Discrimination of damage and fracture information in rock and soil based on image measurement

YIN Xiao-tao1, WANG Shui-lin1, DANG Fa-ning2, DING Wei-hua2, CHEN Hou-qun2, 3   

  1. 1. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China；2. Institute of Geotechnical Engineering, Xi?an University of Technology, Xi?an 710048, China; 3. China Institute of Water Resources and Hydropower Research, Beijing 100044, China
  • Received:2007-05-14 Online:2007-10-25 Published:2014-03-28

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Abstract: Based on CT images and utilizing analysis of physical characteristic value and naked eye observational estimate respectively, the time of damage appeared in the rock or soil is estimated so as to prove the limits of simple observation by eye. Then, using contour method determines the location of damage and judges its extending direction. Through analyzing curve of maximum and minimum of CT number and loading within specimen, the subarea thresholds of non-damage part, damage part and fracture part are determined. Moreover, binary images of each part are obtained under these thresholds. Finally, shape, geometry and physical characteristic value of these binary images are measured quantitatively.

Key words: rock and soil material, images, CT, damage, fracture, binary images, quantification

CLC Number: 

  • TU 443
  • 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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