Assessment Of Empirical Equations For Predicting Scour Depth Around Gravity Base Foundations
Assessment Of Empirical Equations For Predicting Scour Depth Around Gravity Base Foundations
Scour development around offshore foundations, particularly the depth of scour hole, is a critical concern for structural stability. Despite extensive research on scour around offshore monopile foundations, there is a paucity of empirical equations tailored for Gravity Base Foundations (GBFs). This study addresses this gap by compiling and evaluating empirical solutions for predicting scour depth around GBFs. Some equations are specifically designed for GBFs, while others are adapted from methods used for compound and complex bridge piers (CBPs) due to their shape similarities with GBFs. Additionally, the study reviews existing equations for the temporal evolution of scour depth. The performance of these equations is assessed using results from a tank test campaign conducted by IH Cantabria for the ELISA GBF. Although this experimental work examined scour hole development around GBF under various environmental conditions, the current-only unprotected scour tests are considered as the reference experimental data. The findings provide scattered results by assessment of empirical equations, contributing to improved predictive capabilities for scour depth around GBFs.
Kazem Dalili Khanghah; Corrado Altomare; Francesc Xavier Gironella i Cobos; Ivan D’Angiuro; Raul Guanche Garcia; J. Sarmiento
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
12 - Gravity base foundations, Drag and Plate Anchors
https://doi.org/10.53243/ISFOG2025-88
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