›› 2006, Vol. 27 ›› Issue (1): 29-34.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Application of digital image processing technique to triaxial test in soil mechanics

SHAO Long-tan1, SUN Yi-zhen1, WANG Zhu-pin2, LIU Yong-lu1   

  1. 1.Stake Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, China; 2. College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing 100083, China
  • Received:2004-10-14 Online:2006-01-10 Published:2013-10-31

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Abstract: A new means with digital image processing technique for deformation measuring of soil specimen in triaxial test is provided. Using this technique, the error of the deformation measurement, which occurs in traditional triaxial test, can be eliminated. The local deformation of any part of the soil specimen can be measured at will. The coming into being and development of shear bands of the specimen can also be determined. The influence of membrane penetration in the test can be analyzed quantitatively. Meanwhile, the deformation process of the soil specimen can also be tracked and recorded. Comparison of the results by digital image processing technique and by traditional method shows that the former is more accurate. It is indicated that for standard small specimen, measuring the middle 40mm part’s deformation can get rid of the influence of the end on the deformation.

Key words: digital image processing technique, triaxial test, deformation measurement, experimental technique

CLC Number: 

  • TU 22
  • 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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