Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Study on Determining Consolidation Parameters of Soft Clay Ground Improved by Sand Pile

모래말뚝이 타설된 연약점토지반의 압밀정수결정에 관한 연구

  • You, Seung-Kyong (Dept. of Civil Engineering, Myongji College) ;
  • Matsui, Tamotsu (Dept. of Civil Engineering, Osaka Univ.) ;
  • Hong, Won-Pyo (Dept. of Civil & Environment Engineering, Chung-Ang Univ.) ;
  • Kim, Tae-Hyung (Division of Civil and Environmental System Engineering, Korea Maritime Univ.)
  • 유승경 (명지전문대학 토목과) ;
  • 송정보 (오사카대학 토목공학과) ;
  • 홍원표 (중앙대학교 건설환경공학과) ;
  • 김태형 (한국해양대학교 토목환경시스템공학부)
  • Published : 2005.03.25
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Abstract

Sand pile method, such as sand drain method and sand compaction pile method, has been popularly used as an improvement method for soft clay grounds. The effect of accelerating consolidation of soft clay grounds has been evaluated with Barron's solution. By the way, the consolidation behavior of soft clay ground with sand piles strongly depends on both the nonlinear mechanical interaction between sand piles and surrounding clays and the degradation permeability of clays. In this paper, the method for determining consolidation parameters of soft clay ground with sand drains by using Barron's solution was proposed, through a series of numerical simulations. Through the method, the change in both volume compressibility and permeability during consolidation was reasonably evaluated.

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