Akademik Veri Yönetim Sistemi
MARINE SCIENCE AND TECHNOLOGY BULLETIN, cilt.13, sa.2, ss.151-167, 2024 (Hakemli Dergi)
Various methods are employed to investigate the effects of coastal structures in coastal areas on
marine environments and transport phenomena. These methods can be categorized into physical
models and numerical simulations. Due to the lack of long-term wave height data in Türkiye,
numerical models are utilized to estimate wave heights generated by wind based on long-term
measured wind speeds. These wave heights generated in deep sea conditions can be transported to
the coast by wave transformation and interactions between coastal structures and waves, turbulence,
currents induced by wind and breaking waves, coastal sediment transport rates, and changes in the
coastline can be successfully predicted with the assistance of numerical models. In the scope of this
study, the new “Integrative Probabilistic Design Approach of River Jetties” was developed. 3D
numerical models were used for the optimum design, considering the sediment transport near the
jetties and aiming to protect the coastal environment in the long term. 3D numerical modeling has
been conducted to investigate the transport phenomena occurring at the outlet of the Kabakoz River
in the Şile District of İstanbul Province to acquire the optimum layout and design of the coastal
structures. The study presents the “Integrative Probabilistic Design Approach” for coastal protection
structures by wind and wave climate, wave transformation, coastal sediment transport, shoreline
change, and coastal structure probabilistic design sub-models. Monte Carlo Simulation of Hudson
Limit State function conducts probabilistic design for the jetties. The greatest advantage of
probabilistic design (Monte Carlo Simulation) is the prediction of uncertainties, such as wave height
changes under design conditions. Following the completion of the construction of groins, the effect
of probabilistic design on both design and coastal morphology can be evaluated precisely. In
conclusion, in the study area, 146,237.55 m3 of sediment is transported annually from west to east
and 221,043.49 m3 from east to west. In the absence of coastal structures, sediment transport from
east to west is approximately 1.5 times greater than from west to east. The annual net coastal sediment
transport from east to west is approximately 74,805.94 m3, while the total transport is estimated to be
367,281.04 m3.