Laboratory investigation of cross shore profile changes

ABSTRACTPh. D THESISLABORATORY INVESTIGATION OFCROSS-SHORE PROFILE CHANGESMustafa DEMİRCİDEPARTMENT OF CIVIL ENGINEERINGINSTITUTE OF NATURAL AND APPLIED SCIENCESUNIVERSITY OF ÇUKUROVASupervisor : Assist. Prof. Dr. M. Sami AKÖZYear : 2006, Pages: 150Jury : Assist. Prof. Dr. M. Sami AKÖZProf. Dr. M. Salih KIRKGÖZProf. Dr. Recep YURTALAssist. Prof. Dr. Fatih ÜNEŞAssist. Prof. Dr. Zeliha SELEKThe cross-shore sediment transport in a coastal region may cause considerablechanges in beach morphological properties. The accurate estimation of the cross-shore sediment transport is important for the designing of the marine structures suchas seawalls, jetties, breakwaters etc, and the preventing coastal erosion and accretiondue to on-off shore sediment transportation. In this study, the experiments on cross-shore sediment transport are carried out in a laboratory wave channel for initial beachslopes of 1/8, 1/10 and 1/15. Using the regular waves with different deep-water wavesteepnesses generated by a pedal-type wave generator, the geometrical characteristicsof beach profiles under storm conditions and the parameters affecting on-off shoresediment transport are investigated for the beach materials with the medium diameterof d50= d50=0.25, 0.32, 0.45, 0.62 and 0.8 mm. In addition, from the regressionanalyses of the experimental data, the expressions for determining the bar parametersare presented.Keywords: Coastal Region, Cross-Shore Sediment Transport, Beach Profiles, BarParameters, Regression AnalysisII