Overtopping of harbour breakwaters: a comparison of semi-empirical equations, neural networks, and physical model tests

This paper reports extensive tests of empirical equations developed by different authors for harbour breakwater overtopping. First, the existing equations are compiled and evaluated as tools for estimating the overtopping rates on sloping and vertical breakwaters. These equations are then tested using the data obtained in a number of laboratory studies performed in the Centre for Harbours and Coastal Studies of the CEDEX, Spain. It was found that the recommended application ranges of the empirical equations typically deviate from those revealed in the experimental tests. In addition, a neural network model developed within the European CLASH Project is tested. The wind effects on overtopping are also assessed using a reduced scale physical model

An annotated bibliography on detached breakwaters and artificial headlands /

Includes indexes.

Field experiences with floating breakwaters in the eastern United States /

In the past 10 years, the use of floating breakwaters as temporary coastal structures has become increasingly widespread in the United States as an inexpensive means for suppressing waves. However, as with any new technology, there have been many failures and a substantial number of imaginative, successful innovations. One of the chief problems contributing to the failure rate has been a lack of awareness by designers of reliable, up-to-date technical information. As part of a large research effort to remedy this problem, a survey was conducted on field experience with floating breakwaters in the Eastern United States. Results of the survey confirmed that state-of-the-art technical literature is not being properly disseminated. Structures built according to early design manuals were shown to have failed before the completion of their design life. Conversely, floating breakwaters built to the standards set by recent research have fared well and show promise of meeting their design golas. The weakest areas of the present technology are flotation and the anchoring systems. It is recommended that a concentrated research effort be directed toward these problem areas; it is also recommended that the monitoring of state-of-the-art projects continue. (Author).

Monitoring completed coastal projects : operational assessment of floating breakwaters, Puget Sound, Washington /

"April 1988."

Santo Domingo kitchen-midden and burial mound /

"Bibliographical notes": p. 137.

Side-scan sonar investigation of breakwaters at Calumet and Burns Harbors on southern Lake Michigan /

"December 1987."

Estimation of wave transmission coefficients for permeable breakwaters /

"October 1979."

Ecological effects of rubble weir jetty construction at Murrells Inlet, South Carolina /

"June 1984"--Pt. 2.

Estimation of wave transmission coefficients for overtopping of impermeable breakwaters /

"December 1980."