Searched for: subject%3A%22internal%255C+erosion%22
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Pol, J.C. (author), Noordam, Aron (author), Kanning, W. (author)
Backward erosion piping (BEP) is a failure mechanism of hydraulic structures like dams and levees on cohesionless foundations subjected to seepage flows. This article models the time-dependent development of BEP using numerical simulation of the erosion process. A 3-dimensional finite element equilibrium BEP model is extended with a...
journal article 2024
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Pol, J.C. (author)
Structural flood protection systems such as levees are an important component in flood risk reduction strategies. Levees can fail through various failure mechanisms; this thesis focuses on the mechanism Backward Erosion Piping (BEP) which occurs when a sandy levee foundation is eroded by groundwater flow. To assess whether a levee's reliability...
doctoral thesis 2022
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Callari, Carlo (author), Pol, J.C. (author)
This paper presents the numerical interpretation of a recent experiment on a real-scale levee physical model, in order to investigate the process of Backward Erosion Piping (BEP) and validate a recently proposed finite element formulation able to model both the simultaneous processes observed in backward erosion piping, i.e. the propagation of...
journal article 2022
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Robbins, B. A. (author), van Beek, V. M. (author), Pol, J.C. (author), Griffiths, D. V. (author)
Backward erosion piping (BEP) is a type of internal erosion responsible for the failure of many dams and levees. BEP occurs when small, shallow erosion channels progress upstream through foundation sands beneath the structure. As analysis of BEP involves coupling two different sets of flow equations to describe the groundwater flow and...
journal article 2022
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Tao, Yida (author)
Internal erosion is a frequent cause of dike failure, also known as piping or backward erosion. Uplift is considered a submechanism of internal erosion, together with heave and piping, where all three submechanisms must occur for the dike to reach a failure condition. The principle of the uplift phenomenon is straightforward: it occurs when high...
master thesis 2020
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Caspers, Jochem (author)
In this master thesis the current Dutch method of combining failure probabilities at different spatial scales is researched. This method is used in the Dutch flood risk analysis of earthen dikes to assess the probability of flooding. Currently, probabilities of flooding for geotechnical failure mechanisms are obtained which are not considered to...
master thesis 2020
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Mooney, M.A. (author), Boscovich, C. (author), Rittgers, J.B. (author)
conference paper 2017
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Nguyen, C.D. (author), Benahmed, N. (author), Andò, E. (author), Sibille, L. (author), Philippe, P. (author), Abdoel Hosn, R. (author), Li-Hua, L. (author), Wautier, A. (author)
conference paper 2017
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Fannin, R.J. (author), Hartford, D.N.D. (author)
conference paper 2017
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Winkler, P. (author), Salehi Sadaghiani, M.R. (author)
conference paper 2017
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Bocovich, C. (author), Kanning, W. (author), Parekh, M. (author), Mooney, M. (author)
conference paper 2017
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van der Star, W.R.L. (author), Schenkeveld, F.M. (author), Klessens, T.M.A. (author), van Zwieten, G. (author), van Paassen, L.A. (author)
conference paper 2017
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Correia dos Santos, R. (author), Caldeira, L. (author), Maranha das Neves, E, (author)
A laboratory study aiming at the evaluation of the suffusion behaviour of coarse gap-graded soils is presented. Six granular gap-graded soils missing the medium-to-coarse sand fraction have been examined. Four soils have no fines, one has 5% of non-plastic fines, and one has 5% of clayey fines (with plasticity index of about 14%). The use of...
conference paper 2017
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Dornstädter, J. (author), Fabritius, A. (author), Heinemann, B. (author)
Internal erosion is one of the most frequent reasons of failure and deterioration of embankment dams. Internal erosion is controlled by construction properties (e.g. filter and drain design, grain and pore sizes) and hydrodynamic conditions within the dam. While construction properties are usually known, poor information is available on the...
conference paper 2017
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Rönnqvist, H. (author)
Swedish embankment dams are usually constructed with core soils of glacial till. A widely graded soil sourced from moraine deposits, till comprises many fractions, from silt and sand to gravel and stones, all crushed and mixed by the action of glaciation. Interestingly, this type of soil is remarkably similar to that in other parts of the world...
conference paper 2017
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Silva, I. (author), Lindblom, J. (author), Viklander, P. (author), Laue, J. (author)
conference paper 2017
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Li, S. (author), Russell, A.R. (author), Muir Wood, D. (author)
Results of an experimental investigation are reported, conducted to study the stress-strain behavior of a soil having undergone different amounts of internal erosion. The soil used is gap-graded and cohesionless comprising silt, sand and gravel. Internal erosion tests and subsequent triaxial tests are performed in a specially designed apparatus...
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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Van Beek, V.M. (author)
Backward erosion piping is an internal erosion mechanism during which shallow pipes are formed in the direction opposite to the flow underneath water-retaining structures as a result of the gradual removal of sandy material by the action of water. It is an important failure mechanism in both dikes and dams where sandy layers are covered by a...
doctoral thesis 2015
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Robbins, B.A. (author), Sharp, M.K. (author), Corcoran, M.K. (author)
The U.S. Army Engineer Research and Development Center (ERDC) is conducting research to investigate internal erosion, specifically backward erosion piping, by use of laboratory-scale model testing to understand and properly capture the physics of the problem. Preliminary results show that lower void ratio models, using poorly-graded soils with a...
conference paper 2015
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