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Volume 42 Issue 5
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Abstract
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ZHOU Feng-xi, SHAO Yan-ping, MUSA Abdallah Ibrahim Ahmed. Logistic model for isotropic consolidation curve of soils[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(5): 976-980. DOI: 10.11779/CJGE202005021
Citation: ZHOU Feng-xi, SHAO Yan-ping, MUSA Abdallah Ibrahim Ahmed. Logistic model for isotropic consolidation curve of soils[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(5): 976-980. DOI: 10.11779/CJGE202005021
shu

Logistic model for isotropic consolidation curve of soils

  • 1.

    School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China

  • 2.

    Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China

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  • Received Date: June 11, 2019
  • Available Online: December 07, 2022
    Graphical Abstract
    • Abstract
  • Based on the isotropic compression tests on unsaturated soils and the Logistic function, a model for isotropic consolidation curve of soils is proposed. Firstly, the shortcomings of the single-logarithmic and double-logarithmic linear models commonly used in the volumetric behavior are analyzed. Then, with the Logistic function, the mathematical model between void ratio and pressure under isotropic compression conditions is established. The determination method for every parameter in the model and the analytical expression of the pre-consolidation pressure are given. Finally, the validity of the model is verified by comparison with the existing experimental data, and the influence of suction on each model parameter is analyzed.
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    • References (18)
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