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Title: Settlement analysis for an embankment considering visco-elasto-plastic characteristics
Authors: Shi, J.
Zhao, W.
Lee, F.H. 
Keywords: Soft clay
Stress-controlled triaxial test
Three dimensional finite element method
Visco-elasto-plastic constitutive model
Issue Date: 2000
Citation: Shi, J.,Zhao, W.,Lee, F.H. (2000). Settlement analysis for an embankment considering visco-elasto-plastic characteristics. China Ocean Engineering 14 (3) : 349-360. ScholarBank@NUS Repository.
Abstract: In the paper, a visco-elasto-plastic constitutive model and a method for determining model parameters for soft clay are presented. In this model total strain of soft clay is assumed to be divided into three parts: instantaneous elastic, visco-elastic and visco-plastic. The characteristics of instantaneous and visco-elaslic deformation of soft clay are simulated by Merchant's model, the plastic is by a model with two yield surfaces. And related constitutive equation is conducted. A number of stress-controlled triaxial tests are performed to calculated the model parameters. The visco-elasto-plaslic model is used for analysis of the displacement of an embankment on soft ground by use of three-dimensional finite element method. The predicted settlements agree well with the measured data. It is indicated that the viscous characteristics should be taken into account in deformation analysis for soft clay.
Source Title: China Ocean Engineering
ISSN: 08905487
Appears in Collections:Staff Publications

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