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Tomasin, A. (author)
This papers discusses the following topics related to tides and currents: - Tide Generation: the tide generating forces, the development of tidal potential, the equilibrium tide, the development by Doodson, shallow water tides, types of tides - Harmonic and Non-Harmonic Analysis: non-harmonic terms, principles of harmonic analysis, least square...
report 1992
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Van der Meer, J.W. (author)
This paper gives first an overall view of physical processes involved with rubble mound structures and a classification of these structures. After the description of governing parameters, the hydraulic response is treated. This is divided into: - Wave run-up and run-down, - Wave overtopping, - Wave transmission, - Wave reflection. The main part...
report 1992
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Dean, R.G. (author)
Design principles for beach nourishment in the form of cross-shore response, planform evolution of beach nourishment projects and damage reduction
report 1992
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Franco, L. (author)
Italy is often considered as a mother country of vertical breakwaters for harbour protection, since they have been widely used all along our coasts long since. An updated location map is given in fig. 1, which also shows the position of the directional wave recording stations of the existing Italian network. The most common vertical breakwaters...
report 1992
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Boccotti, P. (author)
Analysis of sea states in deep water. - Discussed will be the difficulties of an analytical solution for the wave period and the wave height probability - The closed solution for the wave height probability in the limit of the band-width approaching zero - The closed solution for the wave height probability in the limit H/sqrt(m0)->inf. - The...
report 1992
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Svendsen, A. (author)
Surf zone dynamics is a highly complicated topic in hydrodynamics which deals with the waves and wave generated phenomena in the region between the breaker line on a beach and the shoreline. When waves break on a gently sloping beach, large amounts of energy are released and turned into turbulence. As the waves keep breaking and interacting with...
report 1992
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De Vriend, H.J. (author)
The present lecture deals with models for situations in which the spatial dimensions cannot be separated according to the scales of the morphological processes. Rather common examples of such situations are the morphological evolution near structures (e.g, breakwaters), river outflows, tidal inlets, etc. But also in the absence of such distinct...
report 1992
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D'Angremond, K. (author)
An analysis of "soft" measurements, in the form of beach nourishment, to protect ourselves against the sea. The rapport covers the following subject with regard to "soft" measurements: - Design of soft solution: review of design tools, practical consequences of morphological theory and failure modes - Construction methods for soft solutions:...
report 1992
document
Dalrymple, R.A. (author)
The propagation of waves from offshore to onshore is a difficult problem due to the mathematical complexities of the governing equations and the degree of uncertainty of the bathymetry over which the waves must travel. In this lecture, the various methods of transforming offshore wave trains to shallow water are discussed. First, single wave...
report 1992
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Colamussi, A. (author)
The project to protect Venice against periodic flooding appears to be a complex problem due to the city and surrounding environment that are extremely fragile, the presence of the port activity and the hazard of perturbation of the physical, chemical, biological equilibrium of the Venice lagoon. The mobile barriers are one of the components of a...
report 1992
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Bijker, E.W. (author)
The motivation to develop a transport formulation for the combination of waves and current has been the necessity to model longshore transport passing tidal in- and outlets. The generally applied C.E.R.C. formula for the longshore transport is not applicable here because that formula relates the longshore transport to the longshore current...
report 1992
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Burcharth, H.F. (author)
This rapport includes two main topics for designing a rubble mound breakwater: 1. Geometrical properties and durability of rock materials 2. Structural integrity of concrete armour units Included in this rapport are some design diagrams for Dolos of different waist ratios.
report 1992
document
Magoon, O.T. (author), Baird, W.F. (author)
The design and construction of structures for the coast lines of the world must consider numerous forces and factors. These include the purpose of the structure, the design waves, the design wave climate, the material of which the structure is to be built, foundation conditions, earthquakes, tsunamis, availability of construction and maintenance...
report 1992
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Goda, Y. (author)
The historical development of upright breakwaters in Japan is briefly reviewed as an introduction. Various wave pressure formulas for vertical walls are discussed, and then the design formulas currently employed in Japan are presented with an example of calculation. Several design factors are also discussed.
report 1992
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Casciati, F. (author), Natale, L. (author)
The safety analysis of marine systems is studied. One assumes that the required results of the hazard analysis are available. The identification of the appropriate performance function and the relevant reliability calculation are discussed in detail. The procedure is exemplified for some basic categories of marine systems.
report 1992
document
Dean, R.G. (author)
Structural approaches can be employed to stabilize shorelines against erosion, to provide sheltered areas for swimming or for a myriad of other benefits. In this section, the emphasis will be on shoreline stabilization although much of the information and discussions presented would be equally applicable to accomplish other objectives. Three...
report 1992
document
Liberatore, G. (author)
Detached (or "offshore") breakwaters of emerging type are a common and effective approach for beach protection, particularly for areas with small tidal oscillations. This kind of breakwaters aims at acting on sediment transport by decreasing the transport capacity of long-shore currents, thus locally causing settlement of sediments. Unlike...
report 1992
document
Kamphuis, J.W. (author)
To solve coastal sediment transport and morphology problems, it is necessary to construct a hydrodynamics model to simulate the fluid flow. The hydrodynamics model is then used to calculate sediment transport rates and in turn, these sediment transport rates are used to determine morphology. The hydrodynamics model is based on the Equation of...
report 1992
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Sawaragi, T. (author)
In this paper, the hydraulic functions and stability of detached breakwaters and submerged breakwaters with wide crown widths are discussed. The following subjects with regard to detached and submerged breakwaters are discussed: - Function of detached breakwaters in controlling waves and wave-induced currents - Function of detached breakwaters...
report 1992
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