Non-Repeatability, Scale- and Model Effects in Laboratory Measurement of Impact Loads Induced by an Overtopped Bore on a Dike Mounted Wall

• Published in: Volume 3: Structures, Safety, and Reliability
• Main Authors: Streicher, Maximilian (author), Kortenhaus, Andreas (author), Altomare, Corrado (author), Hughes, Steven (author), Marinov, Krasimir (author), Hofland, Bas (author), Chen, X. (author), Suzuki, T. (author), Cappietti, Lorenzo (author)
• Format: Conference Object
• Language: English
• Published: ASME 2019
• Subjects: Bore impact force; Laboratory experiments; Model effects; Non-repeatability; Scale effects; Arctic
• Online Access: http://resolver.tudelft.nl/uuid:b0fe7d06-ae72-49b1-b803-876959fac1ba; https://doi.org/10.1115/OMAE2019-96703

Overtopping bore impact forces on a dike mounted vertical wall were measured in similar large-scale (Froude length scale factor 1-to-4.3) and small-scale (Froude length scale factor 1-to-25) models. The differences due to scale effects were studied, by comparing the up-scaled force measurements from both models in prototype. It was noted that if a minimum layer thickness, velocity of the overtopping flow and water depth at the dike toe were maintained in the small-scale model, the resulting differences in impact force due to scale effects are within the range of differences due to non-repeatability and model effects. Accepted Author Manuscript Hydraulic Structures and Flood Risk