• Title/Summary/Keyword: 2차압밀침하량

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A Prediction of Long-Term Settlement in Large Reclamated Sites Using Laboratory Consolidation Tests and GIS Techniques (실내압밀시험과 GIS 기법을 이용한 대규모 매립지역의 장기침하량 예측)

  • Park, Sa-Won;Kim, Hong-Taek;Park, Sung-Won;Baek, Seung-Cheol;Park, Sang-Kwon
    • Journal of the Korean GEO-environmental Society
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    • v.7 no.3
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    • pp.5-19
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    • 2006
  • The secondary consolidation settlement of soft clay is generally very little compared to the total settlement and occurs very slowly during long-term period. However the secondary consolidation settlement is comparatively large amount in organic and heavily compressed clay and is a very important engineering factor. In order to reduce residual settlements in reclaimed soft ground, the preloading method is often used. In this study, in order to determine reasonable long-term settlements of large reclaimed site, laboratory incremental loading consolidation tests and surcharging consolidation tests are performed. Sampling was done at Incheon area of west coast and Gwangyang area of south coast in Korea. The characteristics of secondary consolidation have obtained through laboratory tests and analyzed systematically to predict long-term settlements. Additionally, the location data and laboratory test results are correlated by using GIS(geographic information system). The secondary consolidation settlement of the site was predicted based on D/B and the operation technique and estimation technique of space of GIS.

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