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

한국지반공학회 (Korean Geotechnical Society)
권호 표지

일정변형률 압밀시험을 이용한 방사내측배수 압밀해석

Constant Rate of Strain Consolidation Test for Radially inward drainage

  • 윤찬영 (서울대학교 지구환경시스템공학부) ;
  • 양봉근 (대우건설 토목기술2팀) ;
  • 정충기 (서울대학교 지구환경시스템공학부)
  • Yune, Chan-Young (Dept. of Civil, Urban & Geosystem Engineering, Seoul National University) ;
  • Yang, Bong-Keun (Civil Engineering Team II, DAEWOO E&C) ;
  • Chung, Choong-Ki (Dept. of Civil, Urban & Geosystem Engineering, Seoul National University)
  • 발행 : 2004.03.25
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초록

In this study, a consolidometer for radially inward drainage under constant rate of strain (CRS) loading was developed. Theoretical solutions for determining the effective vertical stress and the coefficient of consolidation from the test result were also proposed. Reconstituted kaolinite samples which were consolidated up to 130 kPa were used to verify the developed consolidometer and the theory. Comparative experiments with CRS loading and incremental loading (IL) were carried out in radially in ward drainage as well as vertical and radially outward drainage. The results obtained from the developed CRS loading test agreed consistently with those of the conventional incremental loading test according to drainage directions. And the effect of drainage direction and drain diameter to consolidation characteristics was also evaluated. From the test results the applicability and the reliability of the suggested method were verified.

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