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Verification of Rock Toe Stability Applying the Hydraulic Performance Curves
Currently, there are many available formulae to calculate the required rock size in the toe berm of the structure. The stability number, Ns, is assumed to be linearly proportional to the incident wave height. However, the incident wave characteristics are transformed by the presence of the breakwater and the oscillation patterns in front of the structure is the sum of the incident and reflected waves. The objective of this work was to analyze the toe berm stability as a function of the total wave height in front of the breakwater (Hf). The study was done applying the hydraulic performance curves proposed by Vílchez et al. (2016) to data from van Gent and van der Werf (2014) in order to evaluate the complex reflection coefficient (modulus and phase). It is shown here that the influence of the wave steepness disappears if the total wave height in front of the breakwater is used instead of the incident wave height. The reason is that the influence of this variable is already included in the value of Hf.
Verification of Rock Toe Stability Applying the Hydraulic Performance Curves
Currently, there are many available formulae to calculate the required rock size in the toe berm of the structure. The stability number, Ns, is assumed to be linearly proportional to the incident wave height. However, the incident wave characteristics are transformed by the presence of the breakwater and the oscillation patterns in front of the structure is the sum of the incident and reflected waves. The objective of this work was to analyze the toe berm stability as a function of the total wave height in front of the breakwater (Hf). The study was done applying the hydraulic performance curves proposed by Vílchez et al. (2016) to data from van Gent and van der Werf (2014) in order to evaluate the complex reflection coefficient (modulus and phase). It is shown here that the influence of the wave steepness disappears if the total wave height in front of the breakwater is used instead of the incident wave height. The reason is that the influence of this variable is already included in the value of Hf.
Verification of Rock Toe Stability Applying the Hydraulic Performance Curves
Vílchez, M. (author) / Clavero, M. (author) / Losada, M. A. (author)
Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015 ; 2015 ; Boston, Massachusetts
2017-07-11
Conference paper
Electronic Resource
English
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