Searched for: subject:"rubble%5C+mound%5C+breakwater"
(1 - 18 of 18)
document
Hofland, B. (author), Arefin, Syed Shamsil (author), van der Lem, Cock (author), van gent, Marcel (author)
This paper describes a method to measure the rocking motion of lab-scale armour units. Sensors as found in mobile phones are used. These sensors, data-storage and battery are all embedded in the model units, such that they can be applied without wires attached to them. The technique is applied to double-layer units in order to compare the...
conference paper 2018
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Latham, John Paul (author), Xiang, Jiansheng (author), Anastasaki, Eleni (author), Guo, Liwei (author), Karantzoulis, Nikolaos (author), Viré, A.C. (author), Pain, Christopher (author)
Numerical modelling has the potential to probe the complexity of the interacting physics of rubble mound armour systems. Through forward modelling of armour unit packs, stochastic variables such as unit displacement and maximum contact force per unit during an external oscillatory disturbance can be predicted. The combined finite-discrete...
conference paper 2014
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Mulders, P.H.M. (author), Verhagen, H.J. (author)
A new series of physical model tests were conducted to analyse the behaviour of a breakwater core when it becomes exposed to wave attack. The emphasis of this research was on the measured influence of a wide stone grading on both the deformation of a breakwater trunk and the occurring longshore transport. This behaviour was investigated for both...
conference paper 2012
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Lioutas, A. (author), Smith, G.M. (author), Verhagen, H.J. (author)
The scope of this research is to find an empirical formula to describe the distribution of wave overtopping in the region behind the crest. A physical model was set up in which irregular waves were generated. In order to find a formula which adequately describes the test observations, the influence of several parameters has been analysed. The...
conference paper 2012
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Van de Koppel, M.A. (author), Muilwijk, M. (author), Verhagen, H.J. (author)
A physical model study on the row averaged static and dynamic load on the bottom row of single layer armour units in order to investigate the influence of various parameters such as the number of rows on the slope of a breakwater and the initial relative packing density.
conference paper 2012
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Kik, R. (author), Van den Bos, J.P. (author), Maertens, J. (author), Verhagen, H.J. (author), Van der Meer, J.W. (author)
Different layer design of a rock slope and under layers has a large effect on the strengths on the rock slope itself. In the stability formula developed of VAN DER MEER [1988] this effect is represented by the term Notional Permeability with symbol P. A more open, or permeable, structure underneath the armour layer has the ability to dissipate...
conference paper 2012
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VanLishout, V. (author), Verhagen, H.J. (author), Troch, P. (author)
There is a growing interest in the application of submerged rubble mound breakwaters as coastal defence structures. As their defensive ability highly depends on the amount of wave energy remaining at their lee side, the accurate prediction of the energy in the lee of such structures is of utmost importance. Past experiments have shown that the...
conference paper 2011
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Baart, S. (author), Ebbens, R. (author), Nammuni-Krohn, J. (author), Verhagen, H.J. (author)
Present design tools, as found in the Rock Manual or Coastal Engineering Manual, for the determination of toe rock size for rubble mound breakwaters are based on test data with a large spread: data is relatively dispersed around the centre and descriptive equations have limited applicability ranges. New research has been undertaken to contribute...
conference paper 2010
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Vanlishout, V. (author), Verhagen, H.J. (author), Troch, P. (author)
There is a growing interest in the application of submerged rubble mound breakwaters as coastal defence structures. As their defensive ability highly depends on the amount of wave energy remaining at their lee side, the accurate prediction of the energy in the lee of such structures is of utmost importance. Past experiments have shown that the...
conference paper 2010
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Viet, N.D. (author), Verhagen, H.J. (author), Van Gelder, P.H.A.J.M. (author), Vrijling, J.K. (author)
An appropriate assignment of probabilities of failure to subsystems and components in a structural system can bring a minimum of costs and risk. In this paper, a method for economic optimisation of rubble mound breakwaters using pre-assigned probabilities of failure is presented. Application to a design case shows that the proposed method is...
conference paper 2008
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Viet, N.D. (author), Verhagen, H.J. (author), Van Gelder, P.H.A.J.M. (author), Vrijling, J.K. (author)
In 2006 a Vietnamese Engineering Consultancy Company carried out a design study of a Naval Base at the location of the South of Doson Peninsula in Vietnam. A deterministic approach applied to the conceptual design of the breakwater system of the Naval Base resulted in a cross-section with a big armour layer and a rather low crest level. This...
conference paper 2008
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Tirindelli, M. (author), Lamberti, A. (author)
The present report, produced within the framework of the EU funded project DELOS, attempts to recognise and analyse main scale effects in the physical modeHing of rubble mound breakwaters used in offshore and coastal engineering. Scale effects appear in physical modeHing because the ratios between the farces of interest, as present in prototype,...
report 2004
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Chasten, M.A. (author), Rosati, J.D. (author), McCormick, J.W. (author), Randall, R.E. (author)
This report summarizes and presents design knowledge for both the functional and structural design of detached breakwaters for shoreline stabilization. Functional design of break:waters in the United States relies on a significant amount of engineering judgement, data from a few existing breakwater projects for comparison, and an understanding...
report 1993
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Allsop, N.W.H. (author)
These proceedings describes the progress and results of the MAST I research project "G6-S Coastal Structures', which has addressed the techniques available for the analysis and design of coastal and harbour structures such as sea walls, revetments, and breakwaters. They sumrnarise the information collected and developments completed under the...
report 1992
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van der Meer, J.W. (author)
Abstract not available
doctoral thesis 1988
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Losada, M.A. (author), Giménez Curto, L.A. (author)
Research on rubble mound breakwaters when confronted with waves. The rapport covers the flow characteristics and mound stability under regular waves and under oblique wave attack. The authors find a formula for rough, permeable slopes, flow characteristics under the action of a regular wave train by a function of the type. Furthermore they...
report 1980
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Dai, Y.B. (author), Kamel, A.M. (author)
Laboratory investigations conducted by and for the Waterways Experiment Station under ES 815, "Stability of Rubble-Mound Breakwaters," determined the relative importance of the different variables with respect to the stability of rubble-mound breakwaters and formulated design criteria for those structures. In ES 815, test-wave dimensions, water...
report 1969
document
Iribarren Cavanilles, R. (author)
Development of a formula for the stability of rubble mound breakwaters.
report 1953
Searched for: subject:"rubble%5C+mound%5C+breakwater"
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