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Numerical investigation of multi-directional site response based on KiK-net downhole array monitoring data

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Title: Numerical investigation of multi-directional site response based on KiK-net downhole array monitoring data
Authors: Han, B
Zdravkovic, L
Kontoe, S
Taborda, D
Item Type: Journal Article
Abstract: The multi-directional site response of a well-documented downhole array in Japan is numerically investigated with three directional (3-D) dynamic hydro-mechanically (HM) coupled Finite Element (FE) analysis. The paper discusses the challenges that 3-D modelling poses in the calibration of a cyclic nonlinear model, giving particular emphasis on the independent simulation of the shear and volumetric deformation mechanisms. The employed FE model is validated by comparing the predicted site response against the recorded motions obtained from the KiK-net downhole array monitoring system in Japan. The results show that, by employing the appropriate numerical model, a good agreement can be achieved between the numerical results and the monitored acceleration response in all three directions simultaneously. Furthermore, the comparison with the recorded response highlights the significance of the independent modelling of the shear and volumetric deformation mechanisms to the improvement of the numerical predictions of multi-directional site response.
Issue Date: 26-Apr-2017
Date of Acceptance: 17-Apr-2017
URI: http://hdl.handle.net/10044/1/48165
DOI: https://dx.doi.org/10.1016/j.compgeo.2017.04.008
ISSN: 1873-7633
Publisher: Elsevier
Start Page: 55
End Page: 70
Journal / Book Title: Computers and Geotechnics
Volume: 89
Copyright Statement: © 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: Geological & Geomatics Engineering
0905 Civil Engineering
0914 Resources Engineering And Extractive Metallurgy
0915 Interdisciplinary Engineering
Publication Status: Published
Appears in Collections:Civil and Environmental Engineering
Faculty of Engineering