eBook Groynes in Coastal Engineering: Data on Performance of Existing Groyne Systems download
by R. MacKimm,W.A. Price
Author: R. MacKimm,W.A. Price
Publisher: Construction Industry Research & Information Association (CIRIA) (December 1990)
ePub: 1825 kb
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Groynes in Coastal Engineering book.
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Coastal engineering is a branch of civil engineering concerned with the specific demands posed by constructing at or near the coast, as well as the development of the coast itself. The hydrodynamic impact of especially waves, tides, storm surges and tsunamis and (often) the harsh environment of salt seawater are typical challenges for the coastal engineer – as are the morphodynamic changes of the coastal topography, caused both by the autonomous development of the system and man-made changes
A groyne is a relatively long and narrow coastal defence structure .
A groyne is a relatively long and narrow coastal defence structure, orientated at approximately right angles to the shoreline. Groynes are used to control the natural alongshore movement of beach material under the action of waves and tidal currents. This Technical Note presents, in a systematic manner, information on the layout and performance of groyne systems at forty-five sites on the coastline of England and Wales. The data are presented in tabular form in relation to geometrical and coastal environmental parameters, and perceived performance
Groynes in Coastal Engineering: Data on Performance of Existing. However, at the Eskipazar groin system the sediment depth in the groin field has not showed a significant change since 2009.
Groynes in Coastal Engineering: Data on Performance of Existing. At the Eskipazar groin system there are significant variations in the sediment levels amongst the individual groins due to the frequent and uncontrolled removal of the sediments.
groin) is a rigid hydraulic structure built from an ocean shore (in coastal engineering) or from a bank (in rivers) that interrupts water flow and limits the movement of sediment. It is usually made out of wood, concrete or stone. In the ocean, groynes create beaches or prevent them being washed away by longshore drift. In a river, groynes slow down the process of erosion and prevent ice-jamming, which in turn aids navigation
Groynes in coastal engineering (RP1049)
Groynes in coastal engineering (RP1049). Groynes often form significant elements of the coastal management schemes around the coast of the UK. Investment costs associated with their construction, maintenance and decommissioning is significant. Providing case studies In addition to data and case studies already identified, CIRIA will be seeking examples of good practice and learning points spanning the topics set out above.
In coastal engineering
In coastal engineering. Wooden groyne, Mundesley, UK. A groyne's length and elevation, and the spacing between groynes is determined according to local wave energy and beach slope.
In coastal engineering. Groynes that are too long or too high tend to accelerate downdrift erosion because they trap too much sediment. Groynes that are too short, too low, or too permeable are ineffective because they trap too little sediment. Flanking may occur if a groyne does not extend far enough landward.
Groynes in Sitges A groyne (groin in the United States) is a rigid hydraulic structure built from an ocean shore (in coastal engineering) or from a bank (in rivers) that interrupts water flow and limits the movement of sediment.
Sand-filled geosystems can be used in a wide range of coastal engineering applications
Sand-filled geosystems can be used in a wide range of coastal engineering applications. This article provides a summary of design rules based on the existing theories as well as recommendations regarding the durability and other properties of the materials used in the manufacturing of the geosystems.