• Title/Summary/Keyword: Pseudo-preconsolidation

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Long-term consolidation characteristics of dredged and reclaimed ground (준설매립지반의 장기압밀 특성)

  • Lee, Choong-Ho;Kim, Ju-Hyun;Baek, Won-Jin;Chae, Young-Su
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.03a
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    • pp.486-493
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    • 2008
  • 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 has been performed on thick and soft clay layers. So, the evaluation of long-term consolidation settlement is very important in design and construction. Therefore, In this study, a long-term consolidation characteristics of marine dredged clays are investigated. First, the relationship of $C_{\alpha}/C_c$ on marine dredged clays near Gwang-yang Port was evaluated. Second, long-term consolidation characteristics of the pseudo-preconsolidated ground were evaluated.

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Estimating Maximum Past Pressures for Dredged and Reclaimed Ground (준설매립지반의 선행압밀하중 산정)

  • Baek, Won-Jin;Lee, Song;Jeong, Yong-Eun;Noh, Tae-Gil;Yang, Tae-Seon;Kim, Ju-Hyun
    • Journal of the Korean Geotechnical Society
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    • v.24 no.8
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    • pp.61-79
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    • 2008
  • 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.

Long-term Settlement of the Reclaimed Quasi-overconsolidated Clay Deposits (유사과압밀 준설매립지반의 장기압밀침하)

  • Lee, JIn-Soo;Lee, Choong-Ho;Chae, Young-Su;Baek, Won-Jin;Song, Byung-Gwan;Kim, Ju-Hyun
    • Journal of the Korean Geotechnical Society
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    • v.24 no.7
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    • pp.43-50
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    • 2008
  • Structures are frequently built on a dredged clay layer overlaid by a soft marine clay deposit in coastal areas of Korea. Large consolidation settlement usually occurs in the case and this may cause damages of super-structures. So, the evaluation of long-term consolidation settlement is very important in design and construction. Therefore, in this study, a long-term consolidation characteristics of marine dredged clays are investigated. Firstly, the relationship of $C_{\alpha}/C_c$ on marine dredged clays near Gwang-yang Port was evaluated. Secondly, long-term consolidation characteristics of the pseudo-preconsolidated ground were evaluated.