Searched for: subject:"dam"
(1 - 20 of 113)

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Owusu, A.G. (author), Mul, Marloes (author), van der Zaag, P. (author), Slinger, J (author)
Dam construction and operation are known to alter the hydrology of rivers and degrade riverine ecosystems. In recent decades, the call to reverse these negative impacts by re-operating dams has become stronger. Dams can support riverine ecosystems by releasing environmental flows (e-flows). Unfortunately, despite the development of numerous...
journal article 2020
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Esteban, Miguel (author), Roubos, Jochem Jan (author), Iimura, Kotaro (author), Salet, Jorrit Thomas (author), Hofland, B. (author), Bricker, J.D. (author), Ishii, Hidenori (author), Hamano, Go (author), Takabatake, Tomoyuki (author), Shibayama, Tomoya (author)
The accurate modelling of overtopping of coastal defences by tsunami waves is of vital importance for the formulation of disaster management strategies. To improve knowledge of this phenomena the authors conducted experiments on coastal structure overtopping using bores that were generated by a dam-break mechanism. Three types of structures...
journal article 2020
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Mulatu, C.A. (author), Crosato, A. (author), Langendoen, Eddy J. (author), Moges, Michael M. (author), McClain, M.E. (author)
This work investigates the applicability of an analytical method for quick assessments of the long-term morphological effects of different dam operations on downstream river reaches with the idea to apply the method in feasibility studies to identify the least morphologic-impacting operation scenario. The Ribb River (Ethiopia) is used as a...
journal article 2020
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Winterwerp, J.C. (author), Albers, Thorsten (author), Anthony, Edward J. (author), Friess, Daniel A. (author), Gijón Mancheño, A. (author), Moseley, Kene (author), Muhari, Abdul (author), Tas, S.A.J. (author), Tonneijck, Femke H. (author)
Mangrove-mud coasts across the world erode because of uninformed management, conversion of mangrove forests into aquaculture ponds, development of infrastructure and urbanization, and/or extraction of groundwater inducing land subsidence. The accompanied loss of ecosystem values, amongst which safety against flooding, has far reaching...
journal article 2020
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Wüthrich, Davide (author), Ylla Arbos, C. (author), Pfister, Michael (author), Schleiss, Anton J. (author)
Tsunamis, impulse waves, and dam-break waves are rare but catastrophic events, associated with casualties and damage to infrastructures. An adequate description of these waves is vital to assure human safety and to generate resilient structures. Furthermore, a specific building geometry with openings, such as windows and doors, reduces wave...
journal article 2020
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Ngugi, K. N.Keziah (author), Gichaba, C. M.Maina (author), Kathumo, V. M.Vincent (author), Ertsen, M.W. (author)
Sand dams have become popular in many parts of the arid world as a relatively cheap and effective water harvesting technology. Kenya is one of the countries with the highest number of such dams, with semi-arid Kitui County having become a major hub in recent decades. These sand dams are used for water storage in the beds of Kitui’s seasonal...
journal article 2020
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Della Vecchia, Gabriele (author), Cremonesi, Massimiliano (author), Pisano, F. (author)
This paper concerns the rheological characterisation of liquefied sands as non-Newtonian Bingham fluids. For this purpose, dam-breaking laboratory tests are often executed and interpreted, offering a viable option to identify the properties of fluidised water-soil mixtures. However, limited attention has been devoted so far to clarify what...
journal article 2019
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Wu, Meimei (author), Ge, W. (author), Li, Zongkun (author), Wu, Zening (author), Zhang, Hexiang (author), Li, Juanjuan (author), Pan, Yipeng (author)
Despite the rapid development of risk analysis in dam engineering, there is a relative absence of research on the environmental impact of dam break. As a systematic theory, set pair analysis has a good effect in dealing with uncertainties, although the result is relatively rough and easy to distort. A connection degree of five grades and a...
journal article 2019
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Kahsay, Tewodros Negash (author), Arjoon, Diane (author), Kuik, Onno (author), Brouwer, Roy (author), Tilmant, Amaury (author), van der Zaag, P. (author)
A novel integrated hydro-economic modeling framework that links a bottom-up partial equilibrium (engineering) model with a top-down (economic) general equilibrium model is developed for assessing the regional economic impacts of water resources management and infrastructure development decisions in a transboundary river basin. The engineering...
journal article 2019
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Besseling, Floris (author), Lengkeek, H.J. (author), de Waard, Huig (author), Nieuwenhuis, Kees (author)
The Afsluitdijk is one of the Dutch Delta programme landmarks. Afsluitdijk is a 32 km long primary flood defense, separating lake IJsselmeer from the Wadden Sea and protecting large areas of the Netherlands against flooding. Over the period spanning 2018 - 2022 the levee will be upgraded by the consortium Levvel (BAM, Van Oord and Rebel). Ice...
conference paper 2019
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Ge, W. (author), Jiao, Yutie (author), Sun, Heqiang (author), Li, Zongkun (author), Zhang, Hexiang (author), Zheng, Yan (author), Guo, Xinyan (author), Zhang, Zhaosheng (author), van Gelder, P.H.A.J.M. (author)
Dam breach has catastrophic consequences for human lives and economy. In previous studies, empirical models are often, to a limited extent, due to the inadequacy of historical dam breach events. Physical models, which focus on simulating human behavior during floods, are not suitable for fast analysis of a large number of dams due to the...
journal article 2019
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Li, Wei (author), Li, Zongkun (author), Ge, W. (author), Wu, Sai (author)
The internal mechanism affecting life loss caused by a dam-break flood is complicated. On the basis of analyzing the risk formation path, a risk evaluation indicator system was established which included the hazards, exposure and vulnerability factors. Variable Fuzzy Sets theory was introduced into the risk evaluation of life loss risk grades...
journal article 2019
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Li, Zongkun (author), Wang, Te (author), Ge, W. (author), Wei, Dong (author), Li, Hanyu (author)
Despite the fact that the Bayesian network has great advantages in logical reasoning and calculation compared with the other traditional risk analysis methods, there are still obvious shortcomings in the study of dynamic risk. The risk factors of the earth-rock dam breach are complex, which vary with time during the operation period. Static...
journal article 2019
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Digna, R.F.M.O. (author), Castro Gama, M.E. (author), van der Zaag, P. (author), Mohamed, Yasir A. (author), Corzo, Gerald (author), Uhlenbrook, S. (author)
The Eastern Nile Basin is facing a number of transboundary issues, including water resources development, and the associated impacts. The Nile Basin, particularly the Eastern Nile Sub-basin, is considered as one of a few international river systems of potential conflicts between riparian countries. The Eastern Nile is characterized by the...
journal article 2018
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Guo, Leicheng (author), Su, Ni (author), Zhu, C. (author), He, Qing (author)
Streamflow and sediment loads undergo remarkable changes in worldwide rivers in response to climatic changes and human interferences. Understanding their variability and the causes is of vital importance regarding river management. With respect to the Changjiang River (CJR), one of the largest river systems on earth, we provide a...
journal article 2018
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Digna, R.F.M.O. (author), Mohamed, Yasir A. (author), van der Zaag, P. (author), Uhlenbrook, S. (author), van der Krogt, Wil (author), Corzo, Gerald (author)
The Eastern Nile riparian countries are currently developing several reservoir projects to contribute to the needs for energy and food production in the region. In the absence of formal mechanisms for collaboration, the transboundary nature of the Eastern Nile basin makes water resources development challenging. The large seasonal and...
journal article 2018
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Esteban, Miguel (author), Takabatake, Tomoyuki (author), Glasbergen, Toni (author), Hofland, B. (author), Nishida, Yuta (author), Nishiazaki, Shinsaku (author), Stolle, Jacob (author), Nistor, Ioan (author), Takagi, Hiroshi (author), Bricker, J.D. (author), Shibayama, Tomoya (author)
In the aftermath of the 2011 Tohoku Earthquake and Tsunami Japanese tsunami protection philosophy now dictates that coastal defences should prevent the land that they protect from being flooded under a Level 1 event (with a return period in the order of about 100 years). To ascertain the overtopping mechanism and leeward inundation heights of...
conference paper 2018
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Li, Z. (author), Ye, Wei (author), Marence, Miroslav (author), Bricker, J.D. (author)
Climate change with extreme hydrological conditions, such as drought and flood, bring new challenges to seepage behavior and the stability of earthfill dams. Taking a drought-stricken earthfill dam of China as an example, the influence of drought-flood cycles on dam seepage behavior is analyzed. This paper includes a clay sample laboratory...
journal article 2018
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Raso, L. (author), Barbier, Bruno (author), Bader, Jean Claude (author)
Dams can produce electricity and ensure water security, but at the same time they radically alter the hydrological regime of rivers with significant consequences for the economic and environmental welfare of the region in which they are located. Cost-benefit analysis (CBA) is currently the most frequently used framework for the economic...
journal article 2018
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Esteban, Miguel (author), Glasbergen, Toni (author), Takabatake, Tomoyuki (author), Hofland, B. (author), Nishizaki, Shinsaku (author), Nishida, Yuta (author), Stolle, Jacob (author), Nistor, Ioan (author), Bricker, J.D. (author), Takagi, Hiroshi (author), Shibayama, Tomoya (author)
Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward...
journal article 2017
Searched for: subject:"dam"
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