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Groins are narrow structures, usually straight and perpendicular to the pre-project shoreline. The effect of a single groin is the accretion of beach material on the updrift side and erosion on the downdrift side; both effects extend some distance from the structure.
- Jetties
Jetties. Jetties are used for the stabilization of...
- Jetties
Eventually a beach may become covered in a series of groins, called a groin field, all trying to stabilize the natural flow of sand (Figure 13.5.1 right). Figure 13.5.1 Left: A groin on Bolinas Beach, California.
14 Ιαν 2013 · Shore protection structures which extend from the beach backshore into the surf zone, perpendicular to the shoreline. A groin is intended to build up an eroded beach by trapping littoral drift or to retard the erosion of a stretch of beach.
Groins are built to stabilize a stretch of natural or artificially nourished beach against erosion that is due primarily to a net longshore loss of beach material. Groins function only when longshore transport occurs. Groins are narrow structures, usually straight and perpendicular to the preproject shoreline.
neering practice recommends combining beach nourishment with groin construction to permit sand to immediately begin to bypass the groin field system without promoting extensive diversion of sediment offshore of the littoral system. At the end of the sediment cell, terminal groins may be placed to anchor the beach and limit the movement of
In the face of beach erosion and property loss, groins combined with beach fill should be available as an option as a beach stabilization system where appropriate. This study employs high-quality, spatially and temporally robust (147-year) shoreline change data to assess
27 Απρ 2021 · A model of this type presented in the paper explains an action of groin system in terms of mass conservation law. The model is capable to predict accumulation and downdrift erosion amounts together with the beach advancing during a certain time period. Fig. 1.
