TY - GEN
T1 - Evaluation of the predictive ability of simplified deformation analysis of embankment foundation using physical properties of soils only
AU - Kamei, Takeshi
AU - Shuku, Takayuki
AU - Shibi, Toshihide
PY - 2008
Y1 - 2008
N2 - This paper describes a simple procedure for evaluating deformation behavior of clay foundation under embankment, using a soil-water coupled finite element method based on finite deformation with an elasto-plastic model. The simplified method for determining the soil parameters and ground modeling is estimated using liquid limit, plasticity index and natural water contents only. Reasonable agreements have been obtained between measured and computed values for vertical deformation and excess pore pressure of the well documented case history of the Kanda trial embankment built on a deep soft ground. Lateral displacement, however, is notoriously difficult to predict even approximately, to overcome this, we also investigate the effects of Poisson's ratio on the deformation analysis. The analytical results obtained by the present methods are found to be reasonable, considering the idealized assumptions made.
AB - This paper describes a simple procedure for evaluating deformation behavior of clay foundation under embankment, using a soil-water coupled finite element method based on finite deformation with an elasto-plastic model. The simplified method for determining the soil parameters and ground modeling is estimated using liquid limit, plasticity index and natural water contents only. Reasonable agreements have been obtained between measured and computed values for vertical deformation and excess pore pressure of the well documented case history of the Kanda trial embankment built on a deep soft ground. Lateral displacement, however, is notoriously difficult to predict even approximately, to overcome this, we also investigate the effects of Poisson's ratio on the deformation analysis. The analytical results obtained by the present methods are found to be reasonable, considering the idealized assumptions made.
KW - Finite deformation
KW - Lateral flow
KW - Plasticity
KW - Settlement
KW - Soft ground
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M3 - Conference contribution
AN - SCOPUS:58449098752
SN - 9781880653708
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 552
EP - 558
BT - Proceedings of the 18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008
T2 - 18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008
Y2 - 6 July 2008 through 11 July 2008
ER -