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Implementation of DSC Model for Clay-pile Interface Under Dynamic Load  

Park, Inn-Joon (Dept. of Civil Engrg., Hanseo Univ.)
Yoo, Ji-Hyeung (Dept. of Civil Engrg., Kyungil Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.3, 2003 , pp. 93-104 More about this Journal
Abstract
The Disturbed State Concept (DSC) model, with simplified unloading/reloading formulation, is implemented in a nonlinear dynamic finite element program fur porous media named DSC_DYN2D. In this research, the DSC constitutive model is utilized using the HiSS model for relative intact (RI) part and the critical state model for the fully adjusted (FA) part in the material. The general formulation for implementation is developed. The cyclic loading tests from the field load test data on a pile segment were numerically simulated using the finite element program DSC_DYN2D and compared with field measurements and those from the previous analysis with the HiSS model. The DSC predictions show improved agreement with the field behavior of the pile compared to those from the HiSS model. Overall, the computer procedure with the DSC model allows improved and realistic simulation of the complex dynamic soil-structure interaction problems.
Keywords
Disturbed State Concept (DSC); Dynamic; Finite element program; Nonlinear; Soil-structure interaction; Unloading/reloading;
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