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

다국어 초록 (Multilingual Abstract)

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.

참고문헌 (Reference)

1 Becker, D. E., "Work as a Criterion for Determination In-Situ and Yield Stresses in Clays" 24 (24): 549-564, 1987

2 Silva,P.F, "Uma construção gráfica para a determinação da pressãó de pré-adensamento deuma amostra de solo" 2 : 219-223, 1970

3 Casagrande, "The determination of the Preconsolidation load and its practical significance" 3 : 60-64, 1936

4 Schmertmann,J.M., "The Undisturbed Consolidation of Clay" 120 : 1201-, 1955

5 Janbu,N, "The Resistance Concept Applied to Deformation of Soils" 1 : 191-196, 1969

6 Sällfors,G, "Preconsolidation pressure of soft, high-plastic clays" Chalmers University of Technology 1975

7 Jose, B. T., "Log-log method for determination of preconsolidation pressure" 12 (12): 230-237, 1989

8 Sridharan, A., "Improved technique for estimation of preconsolidation pressure" 41 (41): 263-268, 1991

9 Negussey, D., "Estimating maximum past pressures in clay" 273-279, 1995