Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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The Time-Dependent Behavior Characteristic of Bottom Ash by Maximum Particle Size and Application of Creep Models

Bottom Ash의 최대입경에 따른 시간-의존적 거동 특성 및 크리프 모델 적용성 검토

  • 김태완 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 손영환 (서울대학교 조경.지역시스템공학과, 서울대학교 농업생명과학연구원) ;
  • 봉태호 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 노수각 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 박재성 (서울대학교 조경.지역시스템공학부 대학원)
  • Received : 2013.06.19
  • Accepted : 2013.08.01
  • Published : 2013.09.30
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Abstract

This study finds the characteristics of long-term settlement of Bottom Ash and to review the application of Singh-Mitchell creep equation and Burgers Model to the creep behavior of Bottom Ash. In the undrained state, it was confirmed that creep behavior appeared in the range to 30-80 % of the maximum deviator stress by applying condition in other three stresses through triaxial compression test after isotropically consolidation. By using sieve analysis, it was compared to each sample that was passed through 9.5 mm, 2 mm, 0.25 mm sieves. Also, using Singh-Mitchell creep equation and Burgers Model, it was compared between the theoretical behavior and the observed behavior for each sample. In the result, it is found that creep behavior of Bottom Ash is similar to the theoretical behavior of Singh-Mitchell creep equation and Burgers Model in early stage and it is possible to predict creep behavior of Bottom Ash by these models.

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References

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