Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson
The present study intends to assess the stability and energy dissipation performances of a breakwater configuration (APC) protected by an antifer layer. For comparison, an ordinary caisson (OC), which was 5% wider and 10% heavier, was also investigated. Physical models were implemented and tested...
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| Format: | Article |
| Language: | English |
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IJEGEO
2015-08-01
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| Series: | International Journal of Environment and Geoinformatics |
| Subjects: | |
| Online Access: | http://dergipark.gov.tr/download/article-file/290427 |
| _version_ | 1797905779650461696 |
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| author | M. Sedat Kabdaşlı Murat Çelikoyan Cem Gazioğlu |
| author_facet | M. Sedat Kabdaşlı Murat Çelikoyan Cem Gazioğlu |
| author_sort | M. Sedat Kabdaşlı |
| collection | DOAJ |
| description | The present study intends to assess the stability and energy dissipation performances of a
breakwater configuration (APC) protected by an antifer layer. For comparison, an ordinary caisson
(OC), which was 5% wider and 10% heavier, was also investigated. Physical models were
implemented and tested under regular and irregular waves; and resulting linear and angular
displacements were directly measured via a photogrammetric method. Additionally, wave forces
and resulting horizontal displacements were estimated both from recorded pressure data and from
individual incident waves by modified Goda method. To calculate the horizontal displacement, the
estimated wave force time series were directly double-integrated, whilst the theoretical method
proposed by Shimosako et al. (1994) were used on the individual force values. Although OC was
tested under shorter durations and had a more favorable superstructure in terms of resisting forces,
the results indicated that APC was significantly more stable. Energy dissipation performance of the
tested configurations were quantified in terms of spectral averaged and phase resolved reflection
coefficients, whereas antifer damage ratio was measured on a block-count basis. Results indicated
that the APC configuration had an enhanced performance of dissipating the wave energy; moreover,
the dissipated energy directly links to antifer damage ratio. |
| first_indexed | 2024-04-10T10:10:36Z |
| format | Article |
| id | doaj.art-df4a223b64864661b0a7089e0142429f |
| institution | Directory Open Access Journal |
| issn | 2148-9173 2148-9173 |
| language | English |
| last_indexed | 2024-04-10T10:10:36Z |
| publishDate | 2015-08-01 |
| publisher | IJEGEO |
| record_format | Article |
| series | International Journal of Environment and Geoinformatics |
| spelling | doaj.art-df4a223b64864661b0a7089e0142429f2023-02-15T16:22:15ZengIJEGEOInternational Journal of Environment and Geoinformatics2148-91732148-91732015-08-01228810510.30897/ijegeo.303548Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected CaissonM. Sedat Kabdaşlı0Murat Çelikoyan1Cem Gazioğlu2Istanbul Technical University, Civil Eng’g Fac. Dept. of Civil Eng’g, 34469, MASLAK ISTANBUL, TR Istanbul Technical University, Civil Eng’g Fac., Dept. of Geomatics Eng’g, 34469, MASLAK ISTANBUL,TRİstanbul University, Institute of Marine Sciences and Management, 34134, VEFA FATIH, ISTANBUL, TRThe present study intends to assess the stability and energy dissipation performances of a breakwater configuration (APC) protected by an antifer layer. For comparison, an ordinary caisson (OC), which was 5% wider and 10% heavier, was also investigated. Physical models were implemented and tested under regular and irregular waves; and resulting linear and angular displacements were directly measured via a photogrammetric method. Additionally, wave forces and resulting horizontal displacements were estimated both from recorded pressure data and from individual incident waves by modified Goda method. To calculate the horizontal displacement, the estimated wave force time series were directly double-integrated, whilst the theoretical method proposed by Shimosako et al. (1994) were used on the individual force values. Although OC was tested under shorter durations and had a more favorable superstructure in terms of resisting forces, the results indicated that APC was significantly more stable. Energy dissipation performance of the tested configurations were quantified in terms of spectral averaged and phase resolved reflection coefficients, whereas antifer damage ratio was measured on a block-count basis. Results indicated that the APC configuration had an enhanced performance of dissipating the wave energy; moreover, the dissipated energy directly links to antifer damage ratio.http://dergipark.gov.tr/download/article-file/290427Antifer protected caissonCaisson displacementsStability performanceDamage ratioWave energy dissipation |
| spellingShingle | M. Sedat Kabdaşlı Murat Çelikoyan Cem Gazioğlu Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson International Journal of Environment and Geoinformatics Antifer protected caisson Caisson displacements Stability performance Damage ratio Wave energy dissipation |
| title | Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson |
| title_full | Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson |
| title_fullStr | Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson |
| title_full_unstemmed | Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson |
| title_short | Assessment of Stability and Energy Dissipation Performances of an Antifer Layer Protected Caisson |
| title_sort | assessment of stability and energy dissipation performances of an antifer layer protected caisson |
| topic | Antifer protected caisson Caisson displacements Stability performance Damage ratio Wave energy dissipation |
| url | http://dergipark.gov.tr/download/article-file/290427 |
| work_keys_str_mv | AT msedatkabdaslı assessmentofstabilityandenergydissipationperformancesofanantiferlayerprotectedcaisson AT muratcelikoyan assessmentofstabilityandenergydissipationperformancesofanantiferlayerprotectedcaisson AT cemgazioglu assessmentofstabilityandenergydissipationperformancesofanantiferlayerprotectedcaisson |