Abstract
A physical model test campaign on the stability and degradation of armour layers around monopiles exposed to waves has been conducted. The tests included various regular wave conditions, pile sizes and rock-based armour materials and provided a detailed picture of the deformation of the armour layer based on photogrammetry. The tests have shown that practically applicable rock gradations for armour layers will scour in the same way as a regular sediment bed under similar conditions both in terms of the scour process and the relative scour depth. In the case of very broad gradations the scour processes may alter for the given wave conditions but with no impact on the actual relative scour depth. Results also showed that the relative scour depth in part of the clear-water regime can exceed the expected live-bed scour depth by a factor of two to three.
Original language | English |
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Title of host publication | Proceedings of the 11th International Conference on Scour and Erosion |
Editors | Thor Ugelvig Petersen, Shinji Sassa |
Number of pages | 11 |
Publisher | International Society for Soil Mechanics and Geotechnical Engineering |
Publication date | 2023 |
Publication status | Published - 2023 |
Event | 11th International Conference on Scour and Erosion - Copenhagen, Denmark Duration: 17 Sept 2023 → 21 Sept 2023 |
Conference
Conference | 11th International Conference on Scour and Erosion |
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Country/Territory | Denmark |
City | Copenhagen |
Period | 17/09/2023 → 21/09/2023 |