Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stability of Wide-Graded Rubble Mounds
The reshaping of temporary rubble mounds such as breakwater cores or reclamation bunds is a concern for maritime contractors. Literature formulas for the prediction of such behavior provide little insight in the influence of the wide stone size gradation of the materials involved. Laboratory tests carried out on model structures built with very wide-graded materials ( up to 18) showed that increasing the grading reduces the stability of a slope. It was also observed that the steepness of the initial slope has an influence on the reshaping mechanism. Partly based on the Van der Meer formulas for dynamic stability, new formulas that take into account the parameter are derived for the estimation of important features of a reshaped slope. The new formulas reflect in a simple mathematical expression the experimental evidence, namely the destabilizing effect of a wider grading and of a steeper initial slope. Thus, they are also suitable to be implemented in new or existing numerical models.
Stability of Wide-Graded Rubble Mounds
The reshaping of temporary rubble mounds such as breakwater cores or reclamation bunds is a concern for maritime contractors. Literature formulas for the prediction of such behavior provide little insight in the influence of the wide stone size gradation of the materials involved. Laboratory tests carried out on model structures built with very wide-graded materials ( up to 18) showed that increasing the grading reduces the stability of a slope. It was also observed that the steepness of the initial slope has an influence on the reshaping mechanism. Partly based on the Van der Meer formulas for dynamic stability, new formulas that take into account the parameter are derived for the estimation of important features of a reshaped slope. The new formulas reflect in a simple mathematical expression the experimental evidence, namely the destabilizing effect of a wider grading and of a steeper initial slope. Thus, they are also suitable to be implemented in new or existing numerical models.
Stability of Wide-Graded Rubble Mounds
Merli, Davide (Autor:in) / Uijttewaal, Wim S. J. (Autor:in) / van den Bos, Jeroen (Autor:in) / Roelvink, Dano (Autor:in)
Journal of Waterway, Port, Coastal, and Ocean Engineering ; 139 ; 157-170
29.05.2012
142013-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Stability of Wide-Graded Rubble Mounds
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