Work

Hydraulic stability and wave overtopping characteristics of Tblock™ armour units on a 3V:4H slope

Year: 2024

Type: article

Abstract: Tblock™ is a newly developed single-layer regularly placed interlocking concrete block that has been designed to work on breakwaters and revetments. Physical model tests were conducted to assess the hydraulic stability and overtopping of the armour layer under a wide range of wave steepness on a 3V:4H slope. Based on 51 stability tests, it was observed that the stability of the Tblock™ armour layer decreases as wave steepness increases. This pattern resembles the behavior of Tetrapod and Cube armour layers. Furthermore, an extreme case of brittle destruction was observed, where the failure occurred rapidly after the extraction of the first unit. When compared with other interlocking armour units , Tblock™ demonstrated higher stability number ( N s ) across a wide range of wave steepness. Based on 27 tests, overtopping performance was unsatisfactory, with a roughness coefficient ( γ f ) of 0.73. Moreover, it was confirmed that increasing wave steepness also reduces the roughness effect of the armour layer. The reflection coefficient was found to be comparable to that of other concrete armour units.

Source: Ocean Engineering

DOI: 10.1016/j.oceaneng.2024.119814

Authors: Soroush Aliasgary, Seyed Peyman Badiei, Dominique Mouazé

Institutions: University of Tehran, Centre National de la Recherche Scientifique, Normandie Université, Université de Caen Normandie

Language: English

Topic: Coastal and Marine Dynamics

Subfield: Earth-Surface Processes

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,030

OpenAlex ID: W4404733171

FWCI:

Cites: 24

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Related to: 10