Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Anisotropy in Coefficient of Consolidation of Clay

점토의 압밀계수에 대한 이방성

  • 강병희 (인하대학교 공과대학 토목공학과) ;
  • 이윤규 (안동정보대학 토목공학과) ;
  • 김경태 ((주)한진건설 ENG.사업부 토목설계팀)
  • Published : 1999.02.01
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Abstract

In order to investigate the anisotropy in the coefficient of consolidation of the clay deposit, a series of consolidation tests were carried out on the artificially deposited clay sample by both Rowe-type and conventional consolidometers. The results of the tests showed that the coefficient of consolidation for radially inward drainage by Rowe-type consolidometer was about two times larger than that for vertical drainage by the conventional consolidometer. The smear effect caused by vertical sand drain installation was found to be significant, especially in the overconsolidated region, but smaller with the increase in consolidation pressure.

점토지반의 압밀계수에 대한 이방성을 연구하기 위하여 인공퇴적점토시료로서 Rowe형 압밀시험기와 재래식 일반 압밀시험기를 이용하여 일련의 압밀시험을 수행하였다. 시험결과 Rowe형 압밀시험기에 의해서 구한 내향수평압밀계수는 일반 압밀시험기에 의한 연직 압밀계수의 약 2배이었다. 또한, 연직모래배수재의 설치로 인한 스미어 영향은 과압밀응력범위에서 특히 크며 압밀응력이 증가할수록 감소하였다.

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References

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