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Raport Large scale physical model tests on the stability of geocontainers, P. van Steeg, M. Klein Breteler, may 2008

Within the framework of the Delft Cluster project Geosystemen, WP4c: “Flexible coastal defense systems with geosystems”, which is part of the workpackage 4: “Morfodynamics of the North sea and Coast”, the stability of geocontainers on a slope under wave attack is studied by performing psysical model tests. This is performed within the Delft Cluster project “Sustainable development of North Sea and coast”. The test have been performed with dimensions on a 1:4 scale. Geocontainers are of special interest since it may be a good and in some cases a cheaper alternative for conventional materials used in breakwaters or shore protections such a rock or concrete. This report describes the tests performed in the Delta Flume of WL|Delft Hydraulics and analyses the results of this investigation. Main objective of this report is to determine the stability of the structure and the migration of sand in the geocontainers to derive recommendations for the range of applications.