American Society of Civil Engineers


Feasibility of Modelling of Soil-Structure Interaction Problems Using Full Three-Dimensional Finite Element Method


by H. C. Yeow, Ph.D., C.Eng., (Arup Geotechnics, 13 Fitzroy Street London W1T 4BQ, UK E-mail: hoe-chian.yeow@arup.com) and R. Prust, C.Eng., (Associate Principal MICE, Arup, 155 Avenue of the Americas, New York, NY 10013 E-mail: richard.prust@arup.com)
Section: Simulation and Modeling VI, pp. 1-8, (doi:  http://dx.doi.org/10.1061/40794(179)140)

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Document type: Conference Proceeding Paper
Part of: Computing in Civil Engineering (2005)
Abstract: Geotechnical problems have become more complex as we utilise every spare inch of the ground in urban environment. We need to improve our understanding of the ground behaviour in any underground works and to have more comprehensive, but accessible, techniques to analyse these problems. Ground movement prediction has become more important in such urban development and the need to incorporate advanced non-linear small strain constitutive model in complex soil-structure modelling has become the norm of the industry. Designers are now familiar with complex two-dimensional (2D) finite element (FE) analyses with highly complex soil models. However, three-dimensional (3D) analyses involving soil-structure interaction problems have been limited to large projects or projects involving fund-rich clients because of the high cost and long computation time involved in undertaking such analyses. Others have attempted such analyses by making many simplifications in order to minimise the size of the problems being investigated or even utilising technique involving the use of multi-processors in their computation. This paper presents some examples where full 3D modelling undertaken using a standard PC was used to solve routine geotechnical problems using a state-of-the-art non-linear small strain constitutive model.


ASCE Subject Headings:
Computation
Finite element method
Soil-structure interactions
Three-dimensional analysis
Feasibility studies