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《Mechanics in Engineering》 2017-01
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MODELING ISOTROPIC COMPRESSION OF STRUCTURED SOIL SUBJECTED TO DYNAMIC REFERENCE LINE

LI Xiaoqiang;ZHU Enyang;ZHAO Junlan;School of Civil Engineering, North China University of Technology;  
In view of the similarities in the slope evolution between the isotropic compression line of the structured soil and the strain softening curve, a method of applying the dynamic line in modeling the strain softening curve is proposed in modeling the isotropic compression behaviors of structured soil. In the presented model, the normal compression line(NCL) is extended to a dynamic one as a reference line. Making the reference line decrease with the loading and the compression line of the structured soil follow the reference line all the time, the constitutive model describing the structured soil in the isotropic compression is formulated.Through the comparison between the test data and the model simulation results, the presented model is verified in describing the compression behaviors of the structured soil smoothly and continuously.
【CateGory Index】: TU43
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