The Experimental Investigations of the Deep Artificially Permafrost Constitutive Character
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.
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
B. Lin et al., "The Experimental Investigations of the Deep Artificially Permafrost Constitutive Character", Advanced Materials Research, Vols. 368-373, pp. 2683-2687, 2012