Coastal Protection, Structures and (Sea)Dikes

2002 ◽  
pp. 229-247
Author(s):  
Jan van de Graaff
Keyword(s):  
Coastal Protection ◽  
Sea Dikes ◽  
Protection Structures

Performance of Light Coastal Structures Under Normal and High Water Conditions

1975 ◽  
Vol 2 (4) ◽  
pp. 381-391 ◽  
Author(s):  
J. W. Kamphuis
Keyword(s):  
Lake Erie ◽  
High Water ◽  
Water Levels ◽  
Coastal Protection ◽  
Coastal Structures ◽  
Water Conditions ◽  
Protection Structures

A number of lightweight coastal protection structures, built on the Lake Erie shore are discussed in this paper. There were two constraints on the design; limited funds and a very precarious downdrift beach. Thus the structures were inexpensive and the protection was low-key to prevent damage downdrift. In 1972–1974 these structures were subjected to a combination of large waves and high water levels and thus they were tested well beyond their design limits.The paper discusses the structures, their performance under normal conditions, and their performance during and after the abnormally high water levels. It is found that inexpensive, low-key structures are sufficiently strong to survive normal conditions, but fail by overtopping and flanking under conditions beyond their low design limits.

scholarly journals Current condition of coastal protection structures of Meulaboh, Westcoast of Sumatra Island, Indonesia

2021 ◽  
Vol 869 (1) ◽  
pp. 012030
Author(s):  
W B Setyawan ◽  
E Wulandari
Keyword(s):  
Indian Ocean ◽  
High Energy ◽  
Wave Activity ◽  
Coastal Protection ◽  
Erosion Hazard ◽  
The Indian Ocean ◽  
Tourism Potential ◽  
2004 Tsunami ◽  
The City ◽  
Protection Structures

Abstract Meulaboh is coastal city that has tourism potential. The city has been facing coastal erosion hazard since a long time from high energy wave activity coming from Indian Ocean. To protect the coast from the erosion hazard, a coastal defence structures were built along the city’s coast overlooking the Indian Ocean. Before the 2004 tsunami, hard structures built on the coast that open to waves from the Indian Ocean were damaged by daily wave activity. This study assess effectiveness of the current coastal protection structures protect coastline in the three coastal segments of the city, namely the Padang Seurahet, Ujung Karang and Kampung Pasir, in order to find out if the construction of the structures is the right choice. Related to the tourism potential of Meulaboh City also studied the possibility to expand the function of the structures. The coastal protection structures data for this study were mainly obtained from field observations in June 2021. Effectiveness of the structures protecting coastline were analysed based on technical criteria. Meanwhile, possibility to expand the function of the structures were analysed according to environmental condition of the coastal segments and types of tourism activity. The results of this study show that the hard structure that now exists on Meulaboh coast can protect the city’s coast from the hazard of erosion without negatively impacting the surrounding coastline. In addition, the structure is considered to be expandable to support the development of tourism potential of Meulaboh City. Thus it can be conclude that the choice of hard structure for coastal protection in most of Meulaboh coastline is appropriate.

Investigation of Seawater Exchange Rate for Coastal Protection Structures

APAC 2019 ◽  
2019 ◽  
pp. 907-912
Author(s):  
K. Shim ◽  
K. Kim ◽  
B. Shin ◽  
G. Jung ◽  
J. Ahn
Keyword(s):  
Exchange Rate ◽  
Coastal Protection ◽  
Seawater Exchange ◽  
Protection Structures

DESIGN SCENARIOS FOR COASTAL PROTECTION STRUCTURES ON THE GERMAN BALTIC SEA COAST

2009 ◽  
Author(s):  
Gerd Bruss ◽  
Nestor Jimenez ◽  
Hartmut Eiben ◽  
Michael Heinrichs ◽  
Jens Riemer ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Coastal Protection ◽  
Sea Coast ◽  
Protection Structures

scholarly journals Diachronic evolution of the coastline of Bordj El Kiffane (Algiers, Algeria) in absence and presence of coastal protection structures

2020 ◽  
pp. 422-431
Author(s):  
Ismahane KADRI ◽  
Farid ATROUNE
Keyword(s):  
Coastal Area ◽  
Evolutionary Rates ◽  
Coastal Protection ◽  
Historical Evolution ◽  
Protective Structures ◽  
Protection Structures

The coastal area of Bordj El Kiffane has experienced an artificialisation of its shoreline since 1980. This caused a remarkable decline of the shoreline. To remedy this, the solution recommended was the combination of several protection methods. In order to determine the consequence of the protective structures, a study of the historical evolution of the coastline was performed with ArcGIS and DSAS. The results allowed determining its evolutionary rates and comparing the evolutions on different periods in absence and presence of the protection structures.

scholarly journals METHOD FOR ESTABLISHING SHORE PROTECTION STRUCTURES FROM GABION

2020 ◽  
pp. 84-92
Author(s):  
S.I. Rogachko ◽  
◽  
H.V. Slobodianyk ◽  
N.B. Dolinskaya ◽  
◽  
...  
Keyword(s):  
Agricultural Land ◽  
Residential Buildings ◽  
Wind Waves ◽  
Coastal Protection ◽  
Main Task ◽  
Shore Protection ◽  
Progressive Method ◽  
Industrial Enterprises ◽  
Geological Conditions ◽  
Protection Structures

Abstract. The shores of seas, lakes, bays and reservoirs under the action of wind waves, drifting level ice, rainwater, wind erosion and other factors are subject to intensive destruction. As a result of this, the areas of valuable agricultural land and other lands are reduced. The destruction of the coasts is accompanied by landslides, which reduce the area of settlements where residential buildings, urban buildings, industrial enterprises, park areas, roads and other communications are located. In such cases there is a need for the construction of special protection structures, which will protect coasts from destruction. There are two methods of coastal protection ‒ active and passive. Experience in coastal protection shows, that in many cases, these methods can be successful when applied jointly. The types of structures of shore protection structures are diverse. Therefore, the main task of designers is to choose the most optimal of them, taking into account the climatic, hydrological and engineering-geological conditions of the region construction. The aim of this work is to create a progressive method of construction of shore protection structures on shallow shores of the seas and in shallow reservoirs. This paper considers the existing and innovative designs of shore protection structures made of various materials, the conditions of their use and technical and economic characteristics are analyzed. Based on the analysis, a progressive method of construction of shore protection structures from gabions is proposed. The using of the proposed method for the construction of shore protection structures from a box type gabion will speed up the construction process of such structures, as well as reduce the volume of material at the base, which will lead to a significant reduction in the cost of construction. The mass of gabions in each project should be determined on the parameters of the waves of the design storm in accordance to the recommendations of standards.

scholarly journals EFFECTS OF WAVE LOAD ON THE LONG-TERM VEGETATION DEVELOPMENT AND THEIR RESISTANCE AS GRASS REVETMENTS ON SEA DIKES

2018 ◽  
pp. 87
Author(s):  
Jochen Michalzik ◽  
Sven Liebisch ◽  
Torsten Schlurmann
Keyword(s):  
Ecosystem Services ◽  
Storm Surges ◽  
Coastal Protection ◽  
Wave Load ◽  
Vegetation Development ◽  
Safety Standards ◽  
Wave Basin ◽  
Proper Design ◽  
Sea Dikes

Construction and design processes of revetments, sea dikes and estuarine dikes along the German coastline adhere the paradigm to protect and safeguard reliably the coastal hinterland from wave attack and storm surges. Following these standards coastal protection structures provide only poor ecosystem services in any proper design or maintenance approach. As a result, the EcoDike-project has been started with the aim to quantify and enhance the ecosystem services of revetments, sea dikes and estuarine dikes while preserving or possibly even enhancing the existing safety standards. Therefore, a profound understanding of the complex long-term interactions between wave load and vegetation development on sea dikes is inevitable. To achieve these objectives a typical seadike in prototype scale is tested under realistic and long-term wave loading in the new outdoor wave basin at the Ludwig-Franzius-Institute in Hannover (Germany).

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