The Experimental Investigations of the Deep Artificially Permafrost Constitutive Character

Abstract:

the results of deep artificial permafrost 's tri-axial compression test showed that the stress-strain relationship of deep original frozen clay presents a character that is weak and soft From the view point of engineering application , the paper gives a exponential model containing two parameter, Comparative analysis showed that the model not only gives a good description of frozen clay stress-strain relationship before peak stress, but also has the advantages of less model parameters, easy to determine and clear physical meaning. The analysis results showed that the model parameters a linear increase with the decrease of the temperature, and the change rule of parameters is contrary.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 2683-2687
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.2683
• Online since: October 2011
• Authors: Bin Lin, Tao Ma, Zhi Bo Cheng
• Keywords: Artificial Freezing, Clay, Model, Parameter, Stress-Strain Relationship

References

[1] Physical and mechanical tests on manually frozen soil (MT/T593.3-1996). Coal Industrial Press,1996.

[2] Physical and mechanical tests on manually frozen soil (MT/T593.5-1996). Coal Industrial Press,1996.

[3] Anhui university of science&technologe freezes soil laboratory, the freeze soil test report of Huainan mining industry group gubei ore, 2004.2

[4] Lin bin, Zhao fasuo. Constitutive Characteristic and Parameters of Small Deformation of Loess. Journal of Engineering Geology,2006,14(3):356~359.