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

Korean Geotechnical Society (한국지반공학회)
권호 표지

Characterization of Non-linear Consolidation of Dredged Soil from Incheon Area

인천 지역 준설토의 비선형 압밀특성 연구

  • Oak, Young-Suk (Dept. of Civil, Environ, & Architect. Engrg, Korea Univ.) ;
  • An, Yong-Hoon (Dept. of Civil, Environ, & Architect. Engrg, Korea Univ.) ;
  • Lee, Chul-Ho (Dept. of Civil, Environ, & Architect. Engrg, Korea Univ.) ;
  • Choi, Hang-Seok (Dept. of Civil, Environ, & Architect. Engrg, Korea Univ.)
  • 옥영석 (고려대학교 건축사회환경공학과) ;
  • 안용훈 (고려대학교 건축사회환경공학과) ;
  • 이철호 (고려대학교 건축사회환경공학과) ;
  • 최항석 (고려대학교 건축사회환경공학과)
  • Published : 2008.10.10
Download PDF
⟨ Previous Next ⟩

Abstract

It is of importance to determine the zero effective stress void ratio($e_{00}$), which is the void ratio at effective stress equal to zero, and the relationships of void ratio-effective stress and of void ratio-hydraulic conductivity for characterizing non-liner finite strain consolidation behavior for ultra-soft dredged materials. The zero effective stress void ratio means a transitional status from sedimentation to self-weight consolidation of very soft soil deposits, and acts as a starting point for self-weight consolidation in the non-linear finite strain numerical analysis such as PSDDF. In this paper, a new method for determining the zero effective stress void ratio has been introduced with the aid of measuring electrical resistivity of the specimen. A correlation between the zero effective stress void ratio and the initial slurry void ratio has been proposed, which can be used in PSDDF analysis as an input parameter. Combining all of the accessible experimental data, the consolidation characteristics of a dredged soil from the Incheon area has been studied in detail.

Keywords