HYDRAULIC PERMEABILITY OF STRUCTURES MADE OFGEOTEXTILE SAND CONTAINERS (GSC-STRUCTURES) -LABORATORY TESTS AND RESULTS

摘要

Coastal structures made of Geotextile Sand Containers (GSCs) are increasingly being used as breakwaters, artificial reefs, revetments and dune reinforcement. The permeability of any coastal structure made of GSCs significantly influences its hydraulic stability when subject to wave loads. Permeability also strongly affects wave transmission and other processes associated with wave-structure interaction. Despite the importance of the permeability for both functional design and hydraulic stability, no information is available for the assessment of the permeability of GSC-structures. Therefore comprehensive hydraulic model tests have been performed for the first time to determine the permeability of several types of GSC-structures and configurations.