Print Email Facebook Twitter Validation and Optimization of a Design Formula for Stable Geometrically Open Filter Structures Title Validation and Optimization of a Design Formula for Stable Geometrically Open Filter Structures Author Van de Sande, S.A.H. Uijttewaal, W.S.J. Verheij, H.J. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2014-06-15 Abstract Granular filters are used for protection against scour and erosion of base material. For a proper functioning it is necessary that at the interfaces between the filter structure, the subsoil and the water flowing above the filter structure no material will be transported. Different types of granular filters can be distinguished, this paper focuses on stable geometrically open filter structures under current attack. Hoffmans (2012) developed a design formula for stable geometrically open filters. This paper presents the validation and an optimization of the design formula based on performed model tests. It is shown that the current design formula is too conservative. The proposed improvements allows for a wider range of applicability. Subject filtergranular filtergeometrically open filteropen filterinterface stabilitybed protectiondesign formulastabilityoptimizationICCE 2014 To reference this document use: http://resolver.tudelft.nl/uuid:4f9ed7f0-05e1-4cbc-8992-d91dc6c914d7 Publisher Coastal Engineering Research Council ISBN 978-0-9896611-2-6 Source ICCE 2014: Proceedings of 34th International Conference on Coastal Engineering, Seoul, Korea, 15-20 June 2014 Part of collection Institutional Repository Document type conference paper Rights (c) 2014 The Author(s) Files PDF 7468-31162-1-PB.pdf 804.63 KB Close viewer /islandora/object/uuid:4f9ed7f0-05e1-4cbc-8992-d91dc6c914d7/datastream/OBJ/view