Prediction of shoreline deformation around multiple hard coastal protection systems

الملخص EN

There are several methods to represent the beach changes around the composite coastal protection systems at the coastal zone.

This research try to investigate and predict shoreline changes around composite shore protection systems using LITPACK software.

The model represents the movement of sandy soil sediment transport under the effect of wave and current interaction.

The morphological changes development along quasi-uniform beaches are investigated.

The model was applied on the natural bathymetry of area which located in the neighboring of el-Hammra port at the north western coast of Egypt.

The numerical model was applied to clarify the predicted rates of erosion and accretion around the existing structures and the proposed additional protection structures.

The model results were calibrated with the measured shoreline from 2015 to 2017 and verified with shoreline data from 2017 to 2019.

The model was performed to predict the morphological changes from 2015 to 2030.

Validation applied on the simulated and measured 2019 shoreline by calculating RMSPE value to evaluate the accuracy of the predicted shoreline.

Finally, a hard coastal protection system has been proposed, consisting of detached breakwaters and two long groins.

Results derived from the model show the reliability and suitability of the model to be applied as a correlated protecting systems for the similar regions.