Effect of Anisotropy and Destructuration on Behavior of Haarajoki Test Embankment
Publication: International Journal of Geomechanics
Volume 9, Issue 4
Abstract
This paper investigates the influence of anisotropy and destructuration on the behavior of Haarajoki test embankment, which was built by the Finnish National Road Administration as a noise barrier in 1997 on a soft clay deposit. Half of the embankment is constructed on an area improved with prefabricated vertical drains, while the other half is constructed on the natural deposit without any ground improvement. The construction and consolidation of the embankment is analyzed with the finite-element method using three different constitutive models to represent the soft clay. Two recently proposed constitutive models, namely S-CLAY1 which accounts for initial and plastic strain induced anisotropy, and its extension, called S-CLAY1S which accounts, additionally, for interparticle bonding and degradation of bonds, were used in the analysis. For comparison, the problem is also analyzed with the isotropic modified cam clay model. The results of the numerical analyses are compared with the field measurements. The simulations reveal the influence that anisotropy and destructuration have on the behavior of an embankment on soft clay.
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Acknowledgments
The work presented was carried out as a part of a Research Training Network “Advanced Modelling of Ground Improvement on Soft Soils (AMGISS)” (Contract No. UNSPECIFIEDMRTN-CT-2004-512120) supported by the European Community through the programme “Human Resources and Mobility” and the Academy of Finland (Grant No. UNSPECIFIED210744). The first writer was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) and the third writer was sponsored through a scholarship by the Faculty of Engineering, University of Strathclyde, U.K.
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Published In
International Journal of Geomechanics
Volume 9 • Issue 4 • August 2009
Pages: 153 - 168
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© 2009 ASCE.
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Received: Feb 15, 2008
Accepted: Mar 24, 2009
Published online: Jul 15, 2009
Published in print: Aug 2009
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