Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Estimating Maximum Past Pressures for Dredged and Reclaimed Ground

준설매립지반의 선행압밀하중 산정

  • Baek, Won-Jin (Dept. of Bio System & Agricultural Eng., Chonnam National Univ.) ;
  • Lee, Song (Dept. of Civil Eng., The Univ. of Seoul) ;
  • Jeong, Yong-Eun (Dong-Ah Construction Industrial Co. Ltd) ;
  • Noh, Tae-Gil (Dept. of Civil Eng., The Univ. of Seoul) ;
  • Yang, Tae-Seon (Dept. of Construction Information Eng., Kimpo College) ;
  • Kim, Ju-Hyun (Dept. of Civil Eng., The Univ. of Seoul)
  • 백원진 (전남대학교 생물산업공학과) ;
  • 이송 (서울시립대학교 토목공학과) ;
  • 정용은 (동아건설산업(주)) ;
  • 노태길 (서울시립대학교 토목공학과) ;
  • 양태선 (김포대학 건설정보과) ;
  • 김주현 (서울시립대학교 토목공학과)
  • Published : 2008.08.31
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Abstract

Consolidation settlements on marine dredged clays are often greatly and potentially damaging to structures. Currently, large-scale projects are in planning or progressing in Korea. These projects have been performed on thick and soft clay layers. So, the evaluation of consolidation characteristics for dredged and reclaimed ground is very important in design and construction. Therefore, in this study, a series of conventional consolidation tests were performed to investigate the consolidation characteristics of marine dredged clays near Gwang-yang Port. Preconsolidation pressures were evaluated by applying previously proposed 8 methods for the conventional tests results in order to evaluate the legitimacy of these methods. In these methods, when estimating maximum past pressures for dredged and reclaimed ground, it was proved that Becker (1987), Silva (1970), Sridharan (1991)'s methods are excellent in legitimacy.

준설매립지반에서의 압밀침하는 종종 구조물에 큰 피해를 끼친다. 최근 국내에서는 대규모 프로젝트들이 대심도 연약지반 상에 계획 또는 진행 중에 있다. 따라서, 준설매립지반에 대한 압밀특성의 평가는 설계와 시공에 있어서 매우 중요하다고 할 수 있다. 본 연구에서는, 광양항 인근 지역에서 채취한 시료를 이용, 준설매립지반의 압밀특성을 평가하기 위하여 압밀시험을 실시하였으며, 선행압밀하중은 기존에 제안된 8가지 방법들을 이용하여 산정하였다. 이중에서, 준설매립지반의 선행압밀하중 산정시, Becker(1987), Silva(1970), Sridharan(1991) 방법의 적용성이 뛰어난 것으로 평가되었다.

Keywords

References

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