ANALYSIS OF STRESS-STRAIN BEHAVIOR OF CLAY ALONG TYPICAL STRESS PATHS IN PRACTICAL PROJECTS

Hou Wei; Yao Yangping

doi:10.13204/j.gyjz201109005

Volume 41 Issue 9

Dec. 2014

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Hou Wei, Yao Yangping. ANALYSIS OF STRESS-STRAIN BEHAVIOR OF CLAY ALONG TYPICAL STRESS PATHS IN PRACTICAL PROJECTS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 24-29. doi: 10.13204/j.gyjz201109005

Citation:

Hou Wei, Yao Yangping. ANALYSIS OF STRESS-STRAIN BEHAVIOR OF CLAY ALONG TYPICAL STRESS PATHS IN PRACTICAL PROJECTS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 24-29. doi: 10.13204/j.gyjz201109005

Hou Wei, Yao Yangping. ANALYSIS OF STRESS-STRAIN BEHAVIOR OF CLAY ALONG TYPICAL STRESS PATHS IN PRACTICAL PROJECTS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 24-29. doi: 10.13204/j.gyjz201109005

Citation:

Hou Wei, Yao Yangping. ANALYSIS OF STRESS-STRAIN BEHAVIOR OF CLAY ALONG TYPICAL STRESS PATHS IN PRACTICAL PROJECTS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 24-29. doi: 10.13204/j.gyjz201109005

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ANALYSIS OF STRESS-STRAIN BEHAVIOR OF CLAY ALONG TYPICAL STRESS PATHS IN PRACTICAL PROJECTS

doi: 10.13204/j.gyjz201109005

Hou Wei¹,
Yao Yangping²

1.
1. National Academician &Masters Research Office,BGI Engineering Consultants Ltd,Beijing 100038,China;
2.
2. School of Transportation Science and Engineering,Beihang University,Beijing 100191,China

Received Date: 2011-09-18
Publish Date: 2011-09-20

Abstract

Abstract

The Mohr-Coulomb model, the modified Cam-clay model UH model were used to model the stress-strain relationships under the triaxial compression, extension and compression with decreasing principal stress conditions.The result predicted by the Mohr-Coulomb model, as a perfect elasto-plastic model, was elastic stress-strain relationship when stress point was in yield surface and is elasto-plastic stress-strain relationship with the constant stress and infinite increasing deformation when stress point was on yield surface under the triaxial compression condition. The modified Cam-clay model could be used to predict the behavior of the normally consolidated clay in the triaxial test well, but it over-estimated the strength of clay under the extension condition. The UH model for the normally consolidated clay and over-consolidated clay had the same parameters as those in the modified Cam-clay model. For the normally consolidated clay, the UH model was the same as the modified Cam-clay model. By applying the transformed stress method based on SMP criterion, the UH model could describe the property of clay in threedimension stress space.
- stress path,
- stress-strain relationship,
- elasto-plastic,
- constitutive model

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References(14)

References

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