A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Beaches downcoast of harbours in bays
AbstractIn spite of beach berms being removed during each storm sequence the waterline may be retained constant either by a constant supply of littoral drift or static equilibrium bays being formed between headlands. The construction of salients behind offshore breakwaters may be at the expense of the adjoining coast, which resembles the ubiquitous bay shapes formed between headlands that can be either in dynamic or static equilibrium. This is the same silting situation in the lee of breakwaters extending from the coast where beach erosion results downcoast. Ports constructed upcoast of a bay in dynamic equilibrium can have their breakwaters so located that the bay can become statically stable. In the case of the bay being already in static equilibrium breakwater extension often causes massive accretion in its lee and concomitant erosion further downcoast, thus demanding prodigious expense for beach protection installations. Appropriate procedures are now suggested to minimise this undesirable effect of beach erosion associated with the construction and extension of breakwaters to ports upcoast of a bay.
Beaches downcoast of harbours in bays
AbstractIn spite of beach berms being removed during each storm sequence the waterline may be retained constant either by a constant supply of littoral drift or static equilibrium bays being formed between headlands. The construction of salients behind offshore breakwaters may be at the expense of the adjoining coast, which resembles the ubiquitous bay shapes formed between headlands that can be either in dynamic or static equilibrium. This is the same silting situation in the lee of breakwaters extending from the coast where beach erosion results downcoast. Ports constructed upcoast of a bay in dynamic equilibrium can have their breakwaters so located that the bay can become statically stable. In the case of the bay being already in static equilibrium breakwater extension often causes massive accretion in its lee and concomitant erosion further downcoast, thus demanding prodigious expense for beach protection installations. Appropriate procedures are now suggested to minimise this undesirable effect of beach erosion associated with the construction and extension of breakwaters to ports upcoast of a bay.
Beaches downcoast of harbours in bays
Hsu, John R.C. (author) / Uda, Takaaki (author) / Silvester, Richard (author)
Coastal Engineering ; 19 ; 163-181
1992-06-30
19 pages
Article (Journal)
Electronic Resource
English
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