The use of soft shore protection measures in shallow lakes: Research methodology and case study |
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| Authors: | Selim M Sayah Jean-Louis Boillat Anton Schleiss |
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| Institution: | Laboratory of Hydraulic Constructions, Swiss Federal Institute of Technology, Lausanne, Switzerland |
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| Abstract: | Shore protection in lakes is an issue of major importance in Switzerland where several big lakes in plains suffer from a pronounced bank erosion. For the moment, in shallow lakes, soft and biotechnical protection measures proved their reliability. Unfortunately, the scientific basis for the design of such techniques does not exist in some cases or not appropriate enough in order to have an optimized effect. Therefore, the aim of an on-going research project is to study, on the basis of physical and numerical modeling, the impact of such measures on the shores regarding bank erosion, and to establish the main basis for their dimensioning. A 2-D numerical model was used to simulate the eroded beach of Préverenges on the North coast of Lake Geneva. Hence, this case study allowed a better understanding of the numerical capacities of the program by modelling wave effect on bedload sediment transport and shore erosion as well as wind role in the generation of littoral currents. |
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| Keywords: | Soft shore protection numerical modelling beach erosion |
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