Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Undrained Creep Characteristics of Silty Sands and Comparative Study of Creep model

실트질 모래의 비배수 크리프특성 및 크리프 모델 비교연구

  • 봉태호 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 손영환 (서울대학교 조경.지역시스템공학과, 서울대학교 농업생명과학연구원) ;
  • 노수각 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 박재성 (서울대학교 조경.지역시스템공학부 대학원)
  • Received : 2011.06.08
  • Accepted : 2011.12.09
  • Published : 2012.01.31
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Abstract

Soils exhibit creep behavior in which deformation and movement proceed under a state of constant stress or load. In this study, A series of triaxial tests were performed under constant principal stress in order to interpret the undrained creep characteristics of silty sands. Although samples are non-plastic silty sands, the results of tests show that the creep deformation increasing over time. Based on the results of test, Singh-Mitchell model parameters and Generalized model coefficients were calculated. Generalized model showed slightly larger deformation in the primary creep range but secondary creep deformation was almost identical. Although Singh-Mitchell model showed relatively large errors compared to Generalized model because it uses the average of test results, but Singh-Mitchell model can be easily represented by three creep parameters.

Keywords

References

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