MD
Marcello Di Risio
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Walowa (Wave Loads on Walls)
Large-Scale Experiments in the Delta Flume
Conference paper
(2017)
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Maximilian Streicher, Andreas Kortenhaus, Lorenzo Cappietti, Andrea Esposito, Alessandra Saponieri, Nico Valentini, Giuseppe Tripepi, Davide Pasqualini, Marcello Di Risio, Francesco Aristodemo, Leonardo Damiani, Marc Willems, Corrado Altomare, Dieter Vanneste, Tomohiro Suzuki, Mark Klein Breteler, Dorothea Kaste, Vincent Gruwez, Bas Hofland, Xuexue Chen, Krasimir Marinov, Babette Scheres, Holger Schüttrumpf, Matthias Hirt
Overtopping wave loads on vertical structures on top of a dike have been investigated in several small scale experiments in the past. A large-scale validation for a mild foreshore situation is still missing. Hence the WALOWA experimental campaign was carried out to address this topic. In the present paper the objectives of the WALOWA project are outlined in detail, the model and measurement set-up described and the test program presented. Furthermore, preliminary results featuring a single 1000 irregular waves test of the test program are highlighted. This includes the study of the mild and sandy foreshore evolution by comparing profiles before and after the test execution. The profile measurements are obtained with a mechanical profiler. The wave parameters offshore and at the dike toe are numerically simulated using a SWASH model. The numerical results are validated against the measurements. Finally, the force and pressure time series of the waves impacting against the wall are processed and filtered. The load cell measurements and the time series of integrated pressures are compared to each other and for each impact event the maximum force is derived.
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Overtopping wave loads on vertical structures on top of a dike have been investigated in several small scale experiments in the past. A large-scale validation for a mild foreshore situation is still missing. Hence the WALOWA experimental campaign was carried out to address this topic. In the present paper the objectives of the WALOWA project are outlined in detail, the model and measurement set-up described and the test program presented. Furthermore, preliminary results featuring a single 1000 irregular waves test of the test program are highlighted. This includes the study of the mild and sandy foreshore evolution by comparing profiles before and after the test execution. The profile measurements are obtained with a mechanical profiler. The wave parameters offshore and at the dike toe are numerically simulated using a SWASH model. The numerical results are validated against the measurements. Finally, the force and pressure time series of the waves impacting against the wall are processed and filtered. The load cell measurements and the time series of integrated pressures are compared to each other and for each impact event the maximum force is derived.