액상화 지반의 과잉간극수압 소산 모델링

Modeling of Dissipation of Excess Pore Pressure in Liquefied Sand Grounds

  • 김성렬 (동아대학교 토목공학부) ;
  • 황재익 (미국 버클리대학교 토목환경공학과) ;
  • ;
  • 김명모 (서울대학교 지구환경시스템공학부)
  • 발행 : 2006.03.17

초록

Recently, many researches on the dissipation of excess pore pressure in liquefied sand grounds have been performed to evaluate post-liquefaction behaviors of structures. In this paper. centrifuge tests were performed to simulate liquefaction behaviors of prototype soil. The evaluation model of solidified layer thickness was developed to simulate non-linear variation of solidified layer thickness with time. Also, the dissipation of excess pore pressure in liquefied sand was evaluated by applying the solidification theory and the consolidation theory. The developed model gives a good estimation of the solidified layer thickness and the time history of excess pore pressure.

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