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title

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

Credit to Download: 1 | Page Numbers 8 | Abstract Views: 67
Year: 2019
COI code: GEOTEC04_187
Paper Language: English

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

  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.

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https://www.civilica.com/Paper-GEOTEC04-GEOTEC04_187.html
COI code: GEOTEC04_187

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Ebrahimian, Babak & Armin Hosseinpanahi, 2019, Numerical Investigation of Seismic Behavior of Rubble Mound Breakwaters Rested on Liquefiable Seabed Foundations, 4th Iranian Conference of Geotechnical Engineering, تهران, انجمن ژئوتكنيك ايران - دانشگاه شهيد بهشتي, https://www.civilica.com/Paper-GEOTEC04-GEOTEC04_187.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Ebrahimian, Babak & Armin Hosseinpanahi, 2019)
Second and more: (Ebrahimian & Hosseinpanahi, 2019)
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The University/Research Center Information:
Type: state university
Paper No.: 16753
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