Analysis of Climate Change Effects on Seawall Reliability

Crown heights of seawalls should be designed to suppress overtopping discharge to a permissible level. The permissible level is determined from viewpoints of the structure types of coastal seawalls and hinterland use. It is usually difficult to design the crown heights of seawalls, especially in the...

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Published inCoastal Engineering Journal Vol. 57; no. 3; pp. 1550010-1 - 1550010-18
Main Authors Mase, Hajime, Tamada, Takashi, Yasuda, Tomohiro, Karunarathna, Harshinie, Reeve, Dominic E.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 01.09.2015
Taylor & Francis Inc
Subjects
Breakwaters
Climate change
Climate effects
Coastal engineering
Coastal structures
Design engineering
Discharge
Failure analysis
failure probability
Global warming
Marine
Overtopping
Probability theory
Reliability
Reliability analysis
Sea level
Sea level changes
Sea walls
Slopes
Surges
Wave height
wave overtopping
Climate change
wave overtopping
failure probability
reliability analysis
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Summary:Crown heights of seawalls should be designed to suppress overtopping discharge to a permissible level. The permissible level is determined from viewpoints of the structure types of coastal seawalls and hinterland use. It is usually difficult to design the crown heights of seawalls, especially in the present time where climate change due to global warming is expected. This study analyzes climate change effects such as sea level rise (SLR) and increase of waves and surges on the failure probability of seawalls under various conditions of crown height, toe depth and slope by using a Level III reliability analysis. It was found that the difference of SLR trends (fast, medium or low) has less impact on overtopping rates than the differences in wave height change for a seawall at a target location.
Bibliography:This is an open access article published by World Scientific Publishing and distributed under the terms of the Creative Commons Attribution (CC BY) 4.0 License, which permits use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:2166-4250
0578-5634
1793-6292
DOI:10.1142/S0578563415500102