Relating Geotechnical Sediment Properties and Erodibility at a Sandy Beach

• DOI: 10.1061/jwped5.wweng-2016
• Publication Date: 2024-04-05T14:35:55Z
• Authors: Nicola C. Brilli; Nina Stark; Celso Castro-Boli...

Geotechnical sediment properties, morphological change, and hydrodynamics were measured as part of the During Nearshore Event Experiment (DUNEX) in October 2021 at sandy Atlantic side beach Duck, North Carolina. In this study, direct relationships explored between situ soil properties erodibility measurements context change. Moisture content, grain size, total density, relative void ratio, strength compared to bed-level change using ground-based LiDAR parameters from laboratory jet erosion tests (JETs) conducted along a cross-shore transect stretching dune toe lower intertidal zone. Directly relating changes morphology proved inconclusive due complex interactions sediments, hydrodynamics, morphology, even on local scale, but initial observations possibly impacting factors discussed. Void ratio unit weight correlated well with detachment rate coefficient JETs, denser sediments testing less erodible. related—as expected—to weight, water increases firmness factor associated content. These also found have correlation JET, stronger/firmer being erodible than weaker ones.