방사방향 배수를 고려한 초연약 지반의 비선형 유한변형 자중압밀 거동 분석Non-linear Finite Strain Consolidation of Ultra-soft Soil Formation Considering Radial Drainage
- Other Titles
- Non-linear Finite Strain Consolidation of Ultra-soft Soil Formation Considering Radial Drainage
- Authors
- 안용훈; 곽태훈; 이철호; 최항석; 최은석
- Issue Date
- 2010
- Publisher
- 한국지반공학회
- Keywords
- Vertical drains; Self-weight consolidation; Time rate consolidation; PSDDF
- Citation
- 한국지반공학회논문집, v.26, no.11, pp.17 - 28
- Indexed
- KCI
- Journal Title
- 한국지반공학회논문집
- Volume
- 26
- Number
- 11
- Start Page
- 17
- End Page
- 28
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117601
- ISSN
- 1229-2427
- Abstract
- Vertical drains are commonly used to accelerate the consolidation process of soft soils, such as dredged materials, because they additionally provide a radial drainage path in a deep soil deposit. In practice, vertical drains are commonly installed in the process of self-weight consolidation of a dredged soil deposit. The absence of an appropriate analysis tool for this situation makes it substantially difficult to estimate self-weight consolidation behavior considering both vertical and radial drainage. In this paper, a new method has been proposed to take into account both vertical and radial drainage conditions during nonlinear finite strain self-weight consolidation of dredged soil deposits. For 1-D nonlinear finite strain consolidation in the vertical direction, the Morris (2002) theory and the PSDDF analysis are adopted, respectively. On the other hand, to consider the radial drainage, Barron’s vertical drain theory (1948) is used. The overall average degree of self-weight consolidation of the dredged soil is estimated using the Carillo formula (1942), in which both vertical and radial drainage are assembled together. A series of large-scale self-weight consolidation experiments being equipped with a vertical drain have been carried out to verify the analysis method proposed in this paper. The results of the new analysis method were generally in agreement with those of the experiments.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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