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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 58
COMPUTER TECHNIQUES FOR CIVIL AND STRUCTURAL ENGINEERING Edited by: B.H.V. Topping and B. Kumar
Paper VII.3
Theoretical and Numerical Models for the Prediction of Surface Ground Vibration on an Elastic Layer Over a Rigid Foundation G. Mesgouez*, O. Laghrouche+, D. Le Houédec* and D.V. Jones*
*Laboratoire de Mécanique et Matériaux, Ecole Centrale de Nantes, France
, "Theoretical and Numerical Models for the Prediction of Surface Ground Vibration on an Elastic Layer Over a Rigid Foundation", in B.H.V. Topping, B. Kumar, (Editors), "Computer Techniques for Civil and Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 111-118, 1999. doi:10.4203/ccp.58.7.3
Abstract
In this work, are presented two-dimensional semi-analytical and numerical approaches to solve the problem
of an elastic layer overlying a half-space and subjected
to an harmonic vertical load. The analytical approach
uses a Fourier transform of the governing equations then
the displacements at the ground surface are obtained by
using the inverse Fast Fourier Transform. As a numerical
model, a coupled finite and infinite element scheme
is used. A parametric study is carried out to see the effect
of the layer parameters and the ground structure on
the surface vertical displacement. The results of both approaches
show good agreement and the drawn conclusions
are similar to those obtained from a three-dimensional
semi-analytical model developed earlier.
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