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Geomechanics and Engineering
  Volume 11, Number 5, November 2016 , pages 725-738

New constructive model for structures soil
Sheng Zhang, Haichao Li and Jidong Teng

    A theoretical study of the behavior of structured soils is presented herein. By introducing the effect of soil structure and loading history into the Cam Clay model, a new model was formulated. The concept of differing void ratios was modified to combine structural parameters and the over consolidation ratio, and an evolution law was proposed. Upon introducing the concept of the subloading yield surface, a new two-yield surface model was obtained. The predicted results were compared to the experimental data, demonstrating that the new model provided satisfactory qualitative modeling of many important features of structured soils.
Key Words
    structure; over consolidation; subloading yield surface; constitutive relationships
(1) Sheng Zhang, Haichao Li, Jidong Teng:
School of Civil Engineering, Central South University, Changsha, Hunan 410075, China;
(2) Sheng Zhang, Jidong Teng:
National Engineering Laboratory for High Speed Railway Construction,ChangshHunan 410075, China.

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