Hard Engineering Flashcards
What is a groyne ?
Advantage and disadvantage
A groyne is a wooden, steel , concrete or rock piling.
Advantage : Traps the sediment carried to the coast by longshore drift , preventing coastal erosion
Disadvantage : its expensive to build and maintain and takes away the natural beauty of the coast
What is a wooden revetment ? Advantage and disadvantage
Wooden revetments are sloped wooden planks
Advantage : Absorbs and reduces wave energy , preventing coastal erosion ( idk if its coastal erosion or flooding ) .
Disadvantage: Expensive to build and maintain and can be considered as aesthetically unpleasing , taking away the natural beauty of the coast.
What is a recurved steel wall? Advantage and disadvantage
A recurved steel wall is a
What is a gabion ? Advantage and disadvantage
A gabion is a steel wiremesh cage filled with rocks.
Advantage: Absorbs wave energy and reduces wave energy , preventing coastal erosion . Also many more things
Disadvantages :
