KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Constant Rate of Strain Consolidation Test for Radially Inward Drainage

일정변형률 압밀시험을 이용한 방사 내측배수 압밀해석

  • 윤찬영 (한국건설기술연구원 국토지반연구부) ;
  • 정충기 (서울대학교 지구환경시스템공학부) ;
  • 양봉근 ((주)대우건설 토목건설 2팀)
  • Received : 2006.06.01
  • Accepted : 2006.08.04
  • Published : 2006.09.30
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Abstract

In this study, a consolidometer for radially inward drainage under constant rate of strain (CRS) loading was developed. Their analytical solutions for evaluating consolidation characteristics of soils were also derived. With reconstituted kaolinite samples, comparative tests of the developed CRS loading consolidation in radially inward drainage together with incremental loading (IL) consolidation in radially inward, vertical and radially outward drainages and CRS loading consolidation in radially outward and vertical drainages were carried out. From the test results, It is confirmed that the results of the developed consolidometer were not only in good agreement with those of other consolidation tests but also they were more stable and reliable with less sample disturbance effect.

본 연구에서는 방사내측배수 조건하에서 일정변형률 압밀시험을 실시할 수 있는 실내시험용 압밀실을 개발하였다. 또한 이를 분석하고 관련 압밀특성을 결정할 수 있는 이론해를 제안하였다. 성형 카올리나이트를 이용하여 개발된 시험기에 의한 방사내측 일정변형률 압밀시험과 더불어 비교 대상이 되는 방사내측배수, 연직배수와 방사외측배수에 대한 단계재하 압밀시험과 방사외측배수 및 연직배수 일정변형률 시험을 실시하였다. 이를 통하여 개발된 방사내측배수 일정변형율 시험기의 결과들이 타 실험방법의 결과들과 일치할 뿐만 아니라, 시료 교란 효과가 줄어든 안정적이고, 신뢰성 높은 결과를 제시하는 것을 확인하였다.

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References

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