A case study on the stability of berm type coastal defense structures

Download

index.pdf

Date

2004

Author

Fışkın, Gökçe

Metadata

Show full item record

Item Usage Stats

202
views

73
downloads

Coastal defense structures have primary importance from obtainabilty of resources and benefits served by the coastal regions point of view. However, the construction of coastal defense structures demand a high amount of investment. Therefore, in order to reduce the risk of collapse of these structures, model studies should be carried during the design process. In this study, model investigations were carried out on Eastern Black Sea Highway Project regarding the serviceability and damage thus stability parameters. 5 different models were constructed as berm type rubble-mound breakwaters using Van Der Meer2s approach and berm design guidelines, with a scale of 1/31.08 and they were tested both for breaking and non-breaking waves. The experiments took place in the Coastal and Harbor Engineering Laboratory of the Middle East Technical University, Civil Engineering Department. The models were constructed and tested with different berm widths and armor stone sizes forming the back armor layer in order to examine the effect of these design parameters on the stability and serviceability of the coastal defense structure to obtain the optimum alternative cross-section. Cumulative damage was minimum for the cross-section constructed with berm width 15 m assigning the width of the prototype. Water spray and run-up values were also not significant. The test results were confirming with Van Der Meer design approach.

Subject Keywords

Coastal engineering.

URI

http://etd.lib.metu.edu.tr/upload/12605604/index.pdf
https://hdl.handle.net/11511/14647

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

A case study on the submerged berm type coastal defense structures Özler, Başar; Ergin, Ayşen; Department of Civil Engineering (2004) Coastal defense structures are built in order to protect valuable coastal regions from the destructive effects of the waves. Due to the cost of coastal defense structures and the economical potential of the coastal regions, failure of such structures could cause loss of high amounts of investment. Therefore in the design and construction of coastal structures, it is of vital importance to achieve an optimum design which is not neither underdesigned nor overdesigned. In this study, Submerged Berm type coasta...
Evaluating coastal scenery using fuzzy logic: Application at selected sites in Western Black Sea coastal region of Turkey Ergin, Ayşen; Sahin, Fatma (Elsevier BV, 2010-05-01) Coastal areas of the world are under treat due to the conflicting requirements of functions such as habitation and/or recreation, which affect the strategic asset of coastal scenery itself. Coastal managers, together with planners, need coastal landscape inventories, where the quality of coastal scenery is a part of the inventory. In order to provide an evidence-based approach for sound coastal management decisions, Ergin et al. (2004, 2006) developed a novel technique 'coastal scenic evaluation' (CSE), whi...
Coastal scenic assesment using fuzzy logic approach Karakaya, Selami Tansel; Ergin, Ayşen; Department of Civil Engineering (2004) This thesis analyzes the coastal landscape evaluation that is strongly rooted in the man-environment tradition. Scenery is a natural resource and managers need to attempt the evaluation of scenic resources in an objective and quantitative way that can be utilized mainly in landscape preservation and protection. The thesis will try to find an objective way in evaluation of the coastal scenery by using fuzzy logic mathematics and public perception studies. Using mathematical model developed within the frame w...
Assessment of sea level rise for coastal zone management: vulnerability of Fethiye Bay / Atalay, Aysim Damla; Özyurt Tarakcıoğlu, Gülizar; Yalçıner, Ahmet Cevdet; Department of Civil Engineering (2014) Low-lying geographies are quite attractive and preferable for the populations in terms of settlement, agriculture and tourism. Based on the recent findings of archaeological research, it can obviously be seen that people has generally settled and developed civilizations on low-lying areas. As one of the impacts of global climate change, accelerated sea level rise mainly due to thermal expansion of surface waters has become a growing threat especially for low-lying areas worldwide. Among the most profound im...
Improving Coastal Vulnerability Assessments to Sea-Level Rise: A New Indicator-Based Methodology for Decision Makers Özyurt Tarakcıoğlu, Gülizar; Ergin, Ayşen (2010-03-01) Integration of impacts of sea-level rise to coastal zone management practices are performed through coastal vulnerability assessments. Out of the types of vulnerability assessments, a proposed model demonstrated that relative vulnerability of different coastal environments to sealevel rise may be quantified using basic information that includes coastal geomorphology, rate of sea-level rise, and past shoreline evolution for the National Assessment of Coastal Vulnerability to Sea-Level Rise for U.S. Coasts. T...

Citation Formats

G. Fışkın, “A case study on the stability of berm type coastal defense structures,” M.S. - Master of Science, Middle East Technical University, 2004.