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.
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.
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 f...
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.
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.
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Casagrande (1936), "The determination of the Preconsolidation load and its practical significance", Proc. of 1st ICSMFE, 3, pp.60-64
Janbu, N. (1969), "The Resistance Concept Applied to Deformation of Soils", Proc. of 6th ICSMFE, Mexico City, Vol.1, pp.191-196
Jose, B. T., Sridharan, A., Abraham, B. M. (1989), "Log-log method for determination of preconsolidation pressure", Am. Soc. Test. Mater. Geotech. Test. J. 12, No.3, pp.230-237
Negussey, D., Vaid, Y. P. (1995), "Estimating maximum past pressures in clay", International Symposium on Compression and Consolidation of Clayey soils (IS-Hiroshima 95), pp.273-279
Sallfors, G. (1975), "Preconsolidation pressure of soft, high-plastic clays", Ph.D. Thesis, Chalmers University of Technology, Gothenburg, Sweden
Schmertmann, J. M. (1955), "The Undisturbed Consolidation of Clay", Trans. ASCE, Vol.120, p.1201
Silva, P. F. (1970), "Uma construcao grafica para a determinacao da presso de pre-adensamento deuma amostra de solo", COBRAMSEF, Rio de Janeiro, Vol.2, pp.219-223
Sridharan, A., Abraham, B. M., Jose, B. T. (1991), "Improved technique for estimation of preconsolidation pressure", Geotechnique 41, No.2, pp.263-268
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