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Paper
Title

Numerical Investigation of Seismic Behavior of Rubble Mound Breakwaters Rested on Liquefiable Seabed Foundations

Year: 1398
COI: GEOTEC04_187
Language: EnglishView: 200
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Authors

Babak Ebrahimian - Assistant Professor, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University (SBU), Tehran, Iran
Armin Hosseinpanahi - M.Sc. student, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University (SBU), Tehran, Iran

Abstract:

Offshore geotechnical structures, such as rubble mound breakwaters, are generally vulnerable to strong seismic excitation especially when they are constructed on loose or medium-dense seabed foundation. Liquefaction susceptibility of this foundation types threatens the seismic performance of these structures. In this study, numerical modeling of the seismic behavior of rubble mound breakwaters located on liquefiable soil layer are conducted using explicit finite difference method and a non-linear soil plasticity constitutive model. This model has capability to consider pore pressure build-up and liquefaction analysis through effective stress-based method. The numerical model verification is presented against centrifuge test data. Then, a series of analyses are carried out to compare the seismic behaviors of rubble mound breakwaters founded on liquefiable and non-liquefiable seabed foundation layer. The results revealed that liquefaction occurring beneath the breakwater intensifies the deformations of the rubble mound breakwater compared with the case that liquefaction has not been triggered.

Keywords:

Rubble mound, breakwater, liquefaction, numerical simulation, dynamic analysis.

Paper COI Code

This Paper COI Code is GEOTEC04_187. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/961689/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Ebrahimian, Babak and Hosseinpanahi, Armin,1398,Numerical Investigation of Seismic Behavior of Rubble Mound Breakwaters Rested on Liquefiable Seabed Foundations,4th Iranian Conference of Geotechnical Engineering,Tehran,,,https://civilica.com/doc/961689

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Type of center: دانشگاه دولتی
Paper count: 19,278
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