scholarly journals A NEW REDUCTIVE FACTOR FOR THE WAVE OVERTOPPING DISCHARGE AT CROWN WALLS BASED ON GENETIC PROGRAMMING

2020 ◽  
pp. 9
Author(s):  
Sara Mizar Formentin ◽  
Barbara Zanuttigh
Keyword(s):  
Genetic Programming ◽  
Coastal Structures ◽  
Design Factor ◽  
Wave Overtopping ◽  
Coastal Defense ◽  
Rubble Mound ◽  
Ultimate Objective ◽  
Rubble Mound Breakwaters

The upgrade of existing coastal defense structures by including crown walls and parapets may represent an effective and economic solution to reduce the wave overtopping discharge. Recently, a coefficient gs_GP for the parametrization of the effects induced by berms or promenades, crown walls and parapets on the average q has been developed. The formula for gs_GP was obtained from the Genetic Programming (GP) technique and was conceived to be included in the q formulae by EurOtop Manual (2018). The formula has been applied so far only to smooth dikes with crown walls. The aim of this contribution is to investigate the extension of the formula for gs_GP to a wider range of coastal structures, such as crown walls on top of rubble mound breakwaters and vertical seawalls. The ultimate objective is to provide a new design factor to be used in the EurOtop formulae.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/2xWPJeXPRco

scholarly journals ROUGHNESS FACTOR FOR MULTI-LAYER ARMOUR AS OVERTOPPING ESTIMATOR

2020 ◽  
pp. 25
Author(s):  
Leopoldo Franco ◽  
Yuri Pepi ◽  
Stefano de Finis ◽  
Verdiana Iorio ◽  
Giorgio Bellotti ◽  
...  
Keyword(s):  
Structural Characteristics ◽  
Storm Surges ◽  
Random Wave ◽  
Roughness Factor ◽  
Coastal Structures ◽  
Wave Overtopping ◽  
Wave Flume ◽  
Physical Model Tests ◽  
Rubble Mound ◽  
Rubble Mound Breakwaters

Nowadays one of the most challenging problem for engineers is to adapt existing coastal structures to climate changes. Wave overtopping is highly sensitive to the increasing extreme water depths due to higher storm surges coupled with sea level rise. One way to face these problems for rubble mound breakwaters is to add one or more layers to the existing armour. Prediction of wave overtopping of coastal structures is presently obtained from empirical formulae in EurOtop (2018). For the case of overtopping over multi-layer armour, no validated method exists, so prediction must be based upon assumptions and judgement, with related uncertainties. This study is focused on the effects of different types of armour, the number of layer and other structural characteristics on the roughness factor f. The main effects of porosity and roughness will be investigated. This paper analyzes the results of several new physical model tests of different rubble mound breakwaters reproduced at the new medium scale random wave flume of the Department of Engineering of Roma Tre University.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/8cOdqkqQ-9s

scholarly journals WAVE RUN-UP AND REFLECTION AT RUBBLE MOUND BREAKWATERS WITH ECOPODE ARMOR LAYER

2011 ◽  
Vol 1 (32) ◽  
pp. 45 ◽  
Author(s):  
Mario Calabrese ◽  
Mariano Buccino ◽  
Francesco Ciardulli ◽  
Pasquale Di Pace ◽  
Roberto Tomasicchio ◽  
...  
Keyword(s):  
Wave Reflection ◽  
Wave Transmission ◽  
Wave Overtopping ◽  
Experimental Campaign ◽  
Coastal Defense ◽  
Rubble Mound ◽  
Run Up ◽  
Rubble Mound Breakwaters ◽  
Hydraulic Stability ◽  
Hydraulic Response

In 2008 the authors verified the hydraulic stability of a coastal defense project to be built along the NW coast of Sicily (Italy, Tomasicchio et al., 2009). The intervention consisted of shore parallel barriers armored with a relatively new eco-friendly system: ECOPODETM. In that context the idea arose of conducting an exhaustive experimental campaign on the “ hydraulic response “ of these units, including wave run-up , wave overtopping, wave transmission and wave reflection observations. The latter has been performed in 2010 at the LInC Laboratory of University of Naples “Federico II”. In this paper results on wave run-up and reflection are presented and discussed.

scholarly journals WAVE OVERTOPPING ON RUBBLE MOUND BREAKWATERS

1988 ◽  
Vol 1 (21) ◽  
pp. 57 ◽  
Author(s):  
Pierliugi Aminti ◽  
Leopoldo Franco
Keyword(s):  
Hydraulic Model ◽  
Model Tests ◽  
Geometric Parameters ◽  
Random Wave ◽  
Wave Overtopping ◽  
Wave Flume ◽  
Rubble Mound ◽  
Rubble Mound Breakwaters

The paper gives the results of an extensive series of hydraulic model tests carried out in a random wave flume, in order to study the effects on wave overtopping of the main geometric parameters of a typical rubble mound breakwater with crown wall. The results have been compared with those from other studies and analyzed with different methods. Generalized design diagrams and formulae for the prediction of overtopping discharges are finally given for a large number of popular breakwater configurations.

scholarly journals Damage in Rubble Mound Breakwaters. Part I: Historical Review of Damage Models

2020 ◽  
Vol 8 (5) ◽  
pp. 317
Author(s):  
Álvaro Campos ◽  
Carmen Castillo ◽  
Rafael Molina-Sanchez
Keyword(s):  
Probabilistic Models ◽  
Management Strategies ◽  
Historical Review ◽  
Coastal Structures ◽  
Damage Development ◽  
Damage Models ◽  
Damage Progression ◽  
Rubble Mound ◽  
Rubble Mound Breakwaters

The term “damage” in rubble mound breakwaters is usually related to the foremost failure mode of this kind of coastal structures: their hydraulic instability. The characterization of the breakwater response against wave action was and will be the goal of hundreds of studies. Because of the large amount of information, the present review on damage in rubble mound breakwaters is divided in two papers, which are closely linked but conceptually different; whereas Part II is focused on the various approaches for defining and measuring damage, Part I summarizes the diverse strategies for modelling damage development and progression. The present paper compiles 146 references on this topic, chronologically discussed over almost a century of history: from 1933 to 2020. It includes 23 formulations of hydraulic stability models and 11 formulations of damage progression models, together with main advances and shortcomings up to date. The future of rubble mound design is linked to risk-based tools and advanced management strategies, for which deeper comprehension about the spatial and temporal evolution of damage during the useful life of each particular structure is required. For this aim, damage progression probabilistic models, full-scale monitoring and standardization will presumably be some of the key challenges in the upcoming years.

Prototype measurements and small-scale model tests of wave overtopping at shallow rubble-mound breakwaters: the Ostia-Rome yacht harbour case

2009 ◽  
Vol 56 (2) ◽  
pp. 154-165 ◽  
Author(s):  
Leopoldo Franco ◽  
Jimmy Geeraerts ◽  
Riccardo Briganti ◽  
Marc Willems ◽  
Giorgio Bellotti ◽  
...  
Keyword(s):  
Model Tests ◽  
Scale Model ◽  
Small Scale ◽  
Wave Overtopping ◽  
Rubble Mound ◽  
Rubble Mound Breakwaters ◽  
Small Scale Model

WAVE OVERTOPPING OF RUBBLE MOUND BREAKWATERS WITH CREST ELEMENTS

2007 ◽  
Author(s):  
E.M. Coeveld ◽  
M.M. Busnelli ◽  
M.R.A. van Gent ◽  
G. Wolters
Keyword(s):  
Wave Overtopping ◽  
Rubble Mound ◽  
Rubble Mound Breakwaters
Sign in / Sign up

Export Citation Format

Share Document