Hydraulic performance of vertical walls with horizontal slots used as breakwater

Rageh, O. S.; Koraim, A.S.

doi:10.1016/j.coastaleng.2010.03.005

Cited by 73 publications

(16 citation statements)

References 14 publications

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“…The use of pervious and perforated concrete seawall structures can mitigate the wave load on the structure and reduce wave reflection in front of the structure [156][157][158][159][160][161]. Such structures will also result in improved water quality and have lesser negative effects on coastal ecosystems due to exchange of flow between open sea and the enclosed regions [8,[162][163][164][165].…”

Section: Permeable and Perforated Structuresmentioning

confidence: 99%

Concrete Seawalls: Load Considerations, Ecological Performance, Durability, and Recent Innovations

Hosseinzadeh¹,

Ghiasian²,

Andiroglu³

et al. 2021

Preprint

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Increasing frequency of extreme weather events, driven by climate change, has resulted in an increasing demand for coastal structures to protect and stabilize shorelines. Concrete seawalls are a common category of coastal protection structures, designed with the primary objectives of absorbing wave action, preventing coastline erosion, and alleviating flooding. Much research has been carried out on improving the seawall performance. This work is a review of the current state-of-the-art in concrete seawalls focusing on design aspects including wave loading and innovative seawall designs, ecological considerations, and durability aspects. Wave loads on seawalls have received significant attention; however, their quantification remains a challenging task especially for novel designs. Drawing inspiration from natural shorelines, modification of surface complexity at a multitude of scales can improve the otherwise poor ecological performance of seawalls. The corrosion of the steel is a major durability concern, and the use of non-corrosive reinforcement can increase seawall durability towards corrosion. Examples of innovative seawall designs and systems which have the capability to outperform conventional seawalls are discussed. Advances in structural design, ecological engineering, and infrastructure materials science will drive the development of multi-functional seawalls which are sustainable, durable, and resilient.

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Section: Permeable and Perforated Structuresmentioning

confidence: 99%

Concrete Seawalls: Load Considerations, Ecological Performance, Durability, and Recent Innovations

Hosseinzadeh¹,

Ghiasian²,

Andiroglu³

et al. 2021

Preprint

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“…Coastal protection using rubble mound breakwaters requires a large amount of construction material, and the dimensions required for deeper waters are usually higher, leading to an increase in the quantity of materials needed [1][2][3][4]. The use of natural stone in large quantities for construction, however, can damage mining sites and quarries and deplete limited natural resources.…”

Section: Introductionmentioning

confidence: 99%

“…It is also not advisable to use rubble mound breakwaters because they require a good subgrade bearing capacity [1,[5][6].…”

Section: Introductionmentioning

confidence: 99%

Wave Transmission and Energy Dissipation in a Box Culvert-Type Slotted Breakwater

Nastain

Suripin

Yuwono

et al. 2022

Adv. technol. innov.

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This research is conducted to examine the transmission wave and energy dissipation of a box culvert-type slotted breakwater, which is designed as a breakwater structure with a watertight wall at the top and a box culvert type hole at the bottom. The process involves physical modeling of this structure in the laboratory. The hole and wave parameters are varied to determine the breakwater performance. The results show that the transmission coefficient (KT) value is reduced as the relative hole height (hL/d) value is decreasing and the relative hole length (B/L) and wave steepness (H/L) values are increasing. The energy dissipation coefficient (KD) value increases with an increment in hL/d, H/L, and B/L but starts to decrease after reaching the maximum, which is the optimum H × B/L2 value. This optimum value is found to be 0.0034(hL/d)2.618 depending on the (hL/d) value, while the maximum KD value is recorded to be 0.70.

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“…Vertical breakwaters this type of barriers is installations that have vertical faces towards the sea [10]. These barriers work to prevent part of the wave energy from reaching the shore or the water area to be protected and thus the waves calm down [16].…”

Section: Introductionmentioning

confidence: 99%

Study Unconventional Alternatives to Vertical Breakwater

H¹,

Mahmoud

2021

Journal of Engineering Research

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The main objective of the breakwaters is to protect the port, the beach or the beach facilities from strong waves and storms, as they help to establish calm inside the port and thus achieve safety for ships, and ease of operation. This research aims to present study unconventional alternatives to vertical breakwater. In this study, two different models of vertical wave barriers implemented were chosen for their study and evaluation of the hydrodynamic performance. The first model is a vertical wall with circular slots and the second model is a vertical wall with square slots. A comparison was made between the two models it was found that the square slots reduce the transmission of waves more than circular slots by 5 to 20%. The use of two circular slotted walls decreases wave transmission by up to 30% and increases wave energy dissipation by up to 40% as compared to a single wall. With increasing relative length (h/L), the horizontal wave force rises. The relative wave forces (F/Fo), at porosity ( ) =0.25, was greater than at porosity ( ) = 0.50 by 10 to 30%. At the openings, the wave velocity is high, and the wave energy dissipation factor was also high; the higher the wave amplitude, the greater the wave energy dissipation factor.

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Hydraulic performance of vertical walls with horizontal slots used as breakwater

Cited by 73 publications

References 14 publications

Concrete Seawalls: Load Considerations, Ecological Performance, Durability, and Recent Innovations

Concrete Seawalls: Load Considerations, Ecological Performance, Durability, and Recent Innovations

Wave Transmission and Energy Dissipation in a Box Culvert-Type Slotted Breakwater

Study Unconventional Alternatives to Vertical Breakwater

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