Searched for: subject%3A%22dikes%22
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Torres Alves, G.A. (author), Morales Napoles, O. (author), Mares Nasarre, P. (author)
Before the year 1519, the Valley of Mexico was a closed basin and at the bottom of the valley, an extensive system of shallow lakes was formed. Within this lacustrine system, the capital of the Aztec empire, Tenochtitlan, was built. The Aztecs were known for their impressive constructions and complex hydraulic structures, of which the most...
conference paper 2023
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Mendoza Lugo, M.A. (author), Torres Alves, G.A. (author), Morales Napoles, O. (author)
Investigating the reliability of ancient hydraulic structures constructed without modern probabilistic criteria allows an understanding of why and how the structure fails. In this paper, we present an extended method, firstly introduced by Torres-Alves and Morales-Nápoles (2020), to perform the reliability analysis of the Nezahualcoyotl's dike...
conference paper 2023
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Pol, J.C. (author), van Beek, Vera (author), Kanning, W. (author), Jonkman, Sebastiaan N. (author)
Backward erosion piping is an important failure mode of dikes and dams. The time required for the backward erosion process to result in dike failure is expected to be an important factor in the safety of dikes. This holds especially in coastal and estuarine areas which are dominated by storm surge, and pipes may not fully develop during a storm....
conference paper 2019
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Klerk, W.J. (author), Kanning, W. (author), van Veen, Nelle-Jan (author)
Many flood defences in the Netherlands will have to be reinforced in the coming decades. Many dikes do not fulfill the safety standard due to geotechnical failure modes, largely due to epistemic, reducible uncertainties. . The Value of Information is a measure to indicate beforehand whether an investment towards reducing epistemic uncertainty is...
conference paper 2019
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Oosterlo, P. (author), Hofland, Bas (author), van der Meer, J.W. (author), Overduin, Maarten (author), Steendam, Gosse Jan (author), Nieuwenhuis, Jan-Willem (author), van Vledder, G.P. (author), Steetzel, Henk (author), Reneerkens, Michiel (author)
Wave overtopping is commonly measured using overtopping tanks. In this paper, an alternative system is developed by using two laser scanners. It measures wave run-up, as well as layer thicknesses and front velocities, both during normally and obliquely incident waves on a dike in the field. The paper considers the first field validation tests...
conference paper 2019
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Lengkeek, H.J. (author), Post, M. (author), Breedeveld, J. (author), Naves, Thomas (author)
Dikes in the Netherlands have traditionally been constructed with soil. Climate change and subsidence requires heightening and or reinforcing these existing dikes. Traditional reinforcements demand additional space, which in some cases conflicts with existing buildings. Applying sheet pile walls in dikes allows for strengthening while minimizing...
conference paper 2019
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Lengkeek, H.J. (author), Naves, Thomas (author), Post, M. (author), Breedeveld, J. (author)
Dikes in the Netherlands have traditionally been constructed with soil. Climate change and sub-sidence requires heightening and or reinforcing of these existing ground dikes. Traditional reinforcements de-mand additional space, which in some cases conflicts with existing buildings. Applying sheet pile walls in dikes allows for strengthening...
conference paper 2019
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De Baecque, M. (author), Chevalier, C. (author), Palma Lopes, S. (author), Le Feuvre, M. (author), Reiffsteck, P. (author), Charles, I (author), Herrier, G. (author)
Fluvial and coastal dikes are the primary protection for human life from natural hazards like flooding or wave action. To build these hydraulic earthworks requires many materials with specific performances in terms of workability, mechanical strength, permeability, resistance to erosion, etc. Very often, local material does not meet requirements...
conference paper 2017
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Marot, D. (author), Bendahmane, F. (author), Andrianatrehina, R. (author), Gelet, R. (author)
Suffusion, one of the main internal erosion processes, selectively erodes the fine particles which move through the voids formed by the coarser particles. In the literature, the mechanical consequences of suffusion on soil were investigated by several researchers. However, no general conclusion can be drawn because the already published results...
conference paper 2017
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Koelewijn, A.R. (author), Bridle, R. (author)
Dams and dikes are both water-retaining earth embankments. These are vulnerable to internal erosion but specific differences lead to varying vulnerabilities to different types of internal erosion: • Dams are usually zoned, with potential filtering capability to arrest piping if it is initiated, while dikes are more commonly unzoned and incapable...
conference paper 2017
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Danka, J. (author), Zhang, L. (author)
Dike breaching parameters are important to support dike flood risk management, and can be estimated rapidly using empirical models. Due to the lack of dike specific models, sometimes models for man-made dams were used without validation. This paper compares relevant factors of dike, man-made dam and landslide dam breaches. With the aid of two...
conference paper 2015
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Hijma, M. (author), Van der Meij, R. (author), Lam, K.S. (author)
The subsurface plays an important role when assessing flood risk and its build up has to be known in considerable detail to properly determine the chance of flood-protection failure. Currently, the subsurface below flood-protections is often characterized by geotechnical cross sections that are constructed using e.g. cone penetration tests (CPTs...
conference paper 2015
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Halter, W.R. (author)
Many governments want to realize wind power, because it is a technology that promotes sustainable energy. That is why there is need for locations for wind farms (groups of wind turbines). Dikes are good locations for wind farms, because of favourable wind conditions, the absence of cultivation and the presence of road infrastructure. However,...
conference paper 2015
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Wojciechowska, K. (author), Pleijter, G. (author), Zethof, M. (author), Havinga, F.J. (author), Van Haaren, D.H. (author), Ter Horst, W.L.A. (author)
The aim of this article is to present and discuss fragility curves that were derived for numerous dikes in the Netherlands within the Dike Data Service Centre (DDSC) initiative. A fragility curve of a dike is a mapping from the set of loads, acting on the dike, to the set of conditional dike failure probabilities. The DDSC is a platform around a...
conference paper 2015
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De Visser, M.M. (author), Kanning, W. (author), Koopmans, R. (author), Niemeijer, J. (author)
Research to the failure mechanism piping (internal, backward erosion) in the Netherlands shows that the dikes require costly berms to meet the required safety standards. According to the Sellmeijer piping-formula, the d70 (70%-quantile of the grain size distribution by weight) is an important parameter in the resistance against piping. Therefore...
conference paper 2015
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Schweckendiek, T. (author)
conference paper 2015
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Klerk, W.J. (author), Kok, M. (author), de Bruijn, K.M. (author), Jonkman, S.N. (author), van Overloop, P.J. (author)
In the Netherlands, flood risk analysis is usually carried out for a location, without considering potential flood defence failures in upstream areas. This may result in significant over- or underestimation of flood risks. The effect of upstream failures on failure probabilities and flood risks in other areas is called load interdependence of...
conference paper 2014
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Bischiniotis, K. (author), Kanning, W. (author), Jonkman, S.N. (author)
This research focuses on the optimization of river dikes using probabilistic methods. Its aim is to develop a generic method that automatically estimates the failure probabilities of many river dike cross-sections and gives the one with the least cost, taking into account the boundary conditions and the requirements that are set by the user....
conference paper 2014
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Tusinski, A. (author), Verhagen, H.J. (author)
The objective of this research is to obtain generic relations between attenuated wave heights and various vegetation and topographical scenarios. Subsequently, it is aimed to find out what is the actual cost profit of a dike construction behind a mangrove zone comparing to the case when mangroves are absent. The graphs and formulas developed in...
conference paper 2014
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Chen, X. (author), Hofland, B. (author), Altomare, C. (author), Uijttewaal, J.S.W. (author)
In this paper the impact process and mechanism of overtopping flow on a vertical wall on a dike crest are investigated by means of a series of physical model tests. A double-peaked force was recognized in a time series of an overtoping flow. Four stages were summarized for the whole overtopping flow impact process. An empirical relationship...
conference paper 2014
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