Effect of boundary conditions of the underlying soil layer on the seismic response of dikes

Earthquake is one of the factors that cause the failure of a dike. During an earthquake, there are lot of effects from each elements of soil that contributed to the failure of a dike and one of which is boundary layer condition. Therefore, this study aims to investigate the effects of boundary layer...

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Bibliographic Details
Main Author: Filbert
Other Authors: Budi Wibawa
Format: Final Year Project (FYP)
Language:English
Published: 2016
Subjects:
Online Access:http://hdl.handle.net/10356/67116
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author Filbert
author2 Budi Wibawa
author_facet Budi Wibawa
Filbert
author_sort Filbert
collection NTU
description Earthquake is one of the factors that cause the failure of a dike. During an earthquake, there are lot of effects from each elements of soil that contributed to the failure of a dike and one of which is boundary layer condition. Therefore, this study aims to investigate the effects of boundary layer condition of underlying soil on the seismic response of dike by using Plaxis 2D software. The peak grade acceleration (PGA) and total displacement at the crest of dike were the main interest in this study. These outputs were obtained by making a dike structure and applying absorbing and fixed boundary condition to four different shapes (horizontal, trapezoidal, staircase and multi-layer) of soil basin and simulate it with harmonic acceleration and Ferndale earthquake. The results showed that dike model in fixed boundary condition has higher horizontal PGA and maximum vertical displacement than fixed boundary condition. These results were probably due to the absorbed increment of stresses induced by the absorbing boundary condition. The limitations and future recommendations are further discussed in the paper.
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spelling ntu-10356/671162023-03-03T17:24:47Z Effect of boundary conditions of the underlying soil layer on the seismic response of dikes Filbert Budi Wibawa School of Civil and Environmental Engineering DRNTU::Engineering Earthquake is one of the factors that cause the failure of a dike. During an earthquake, there are lot of effects from each elements of soil that contributed to the failure of a dike and one of which is boundary layer condition. Therefore, this study aims to investigate the effects of boundary layer condition of underlying soil on the seismic response of dike by using Plaxis 2D software. The peak grade acceleration (PGA) and total displacement at the crest of dike were the main interest in this study. These outputs were obtained by making a dike structure and applying absorbing and fixed boundary condition to four different shapes (horizontal, trapezoidal, staircase and multi-layer) of soil basin and simulate it with harmonic acceleration and Ferndale earthquake. The results showed that dike model in fixed boundary condition has higher horizontal PGA and maximum vertical displacement than fixed boundary condition. These results were probably due to the absorbed increment of stresses induced by the absorbing boundary condition. The limitations and future recommendations are further discussed in the paper. Bachelor of Engineering (Civil) 2016-05-12T01:51:35Z 2016-05-12T01:51:35Z 2016 Final Year Project (FYP) http://hdl.handle.net/10356/67116 en Nanyang Technological University 48 p. application/pdf
spellingShingle DRNTU::Engineering
Filbert
Effect of boundary conditions of the underlying soil layer on the seismic response of dikes
title Effect of boundary conditions of the underlying soil layer on the seismic response of dikes
title_full Effect of boundary conditions of the underlying soil layer on the seismic response of dikes
title_fullStr Effect of boundary conditions of the underlying soil layer on the seismic response of dikes
title_full_unstemmed Effect of boundary conditions of the underlying soil layer on the seismic response of dikes
title_short Effect of boundary conditions of the underlying soil layer on the seismic response of dikes
title_sort effect of boundary conditions of the underlying soil layer on the seismic response of dikes
topic DRNTU::Engineering
url http://hdl.handle.net/10356/67116
work_keys_str_mv AT filbert effectofboundaryconditionsoftheunderlyingsoillayerontheseismicresponseofdikes