الفهرس 
COASTAL DISCIPLINES AND PROJECTS PLANNINGOnly 14 pages are availabe for public view
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Abstract
In terms of the importance of safeguarding the coastal zone in Egypt, this thesis was initiated with the motivation of proposing an innovative coastal protection measure and investigating its capability of energy dissipation, experimentally. Primarily, literature was reviewed, analysed, categorized and comprehended. models to solid piles breakwater were designed and constructed. Experimental flume was set up to test these models, where measuring devices were arranged. Contributing parameters (i.e. wave height, period, steepness, piles arrangements, diameters…..etc.) were varied. Measurements were undertaken ;analysed; presented on graphs and discussed. Based on the discussions and within the experimented range of parameters, it was clear that solid piles so as the staggered possess an enormous capability of dissipating the wave energy by a percentage that ranged between 20 to 75%, which is considered to be a reasonable amount from the coastal engineering point of view. In terms of the importance of coastal zones, some previous research tried to reduce wave energy attacking the shoreline. This thesis presents a special coastal protection measure which is perforated piles, evenly distributed and staggered, breakwaters and experimentally investigates piles breakwaters capability of energy dissipation. Physical models of perforated piles breakwater were designed and constructed. Experimental flume was arranged to test these models and measuring devices were arranged. Contributing parameters such as wave height, period, steepness, piles arrangements and pile diameter were varied. Based on the discussions and within the experimented range of parameters, it was clear that perforated piles possess an enormous capability of dissipating the wave energy by a percentage ranged between 15 to 55% which is considered to be significant amount from the coastal engineering point of view. It can also be applied to the equation (Ct) on the solid piles. Moreover, the pile breakwater was investigated to assess it, in terms of the environmental impact (i.e. shoreline changes) and economic (i.e. cost estimate) , but found piles breakwater better than rubble mound breakwater.