Investigation of bar parameters occurred by cross-shore sediment transport

Cross-shore sediment transport is very important factor in the design of coastal structures, and the beach profile is mainly affected by a number of parameters, such as wave height and period, beach slope, and the material properties of the bed. In this study cross-shore sediment movement was investigated using a physical model and various offshore bar geometric parameters were determined by the resultant erosion profile.The experiments on cross-shore sediment transport carried out in a laboratory wave channel for initial base slopes of 1/8, 1/10 and 1/15. Using the regular waves with different deep-water wave steepness generated by a pedal-type wave generator, the geometricalof sediment transport rate and considerablecharacteristics of beach profiles under storm conditions and bar parameters affecting on-off shore sediment transport are investigated for the beach materials with the medium diameter of d50=0.25, 0.32, 0.45, 0.62 and 0.80 mm. Non-dimensional equations were obtained by using linear and non-linear regression me-thods through the experimental data and were compared with previously developed equations in the literature. The re-sults have shown that the experimental data fitted well to the proposed equations with respect to the previously deve-loped equations. © SNAK, 2013.This work was supported by Çukurova University Research Fund under the Project no. CUMMF2004D5, which is gratefully acknowledged