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Research needs for improved dam safety risk management of internal erosion: (Abstract)

Fannin, R.J. (author), Hartford, D.N.D. (author)

conference paper 2017

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Learning from Temporal and Spatial Geotechnical and Geophysical Data: (Abstract)

Mooney, M.A. (author), Boscovich, C. (author), Rittgers, J.B. (author)

conference paper 2017

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Numerical modeling of small-scale experiments for a coarse sand barrier as a measure against backward erosion piping: (Abstract)

Rosenbrand, E. (author), van Beek, V.M. (author), van Esch, J.M. (author), Noordam, A. (author), Pederzani, F. (author), Vandenboer, K. (author), Bezuijen, A. (author)

conference paper 2017

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Physical modelling of backward erosion piping in levee foundation subjected to repeated flooding: (Abstract)

Takahashi, A. (author), Horikoshi, K. (author), Maruyama, T. (author)

conference paper 2017

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Understanding Piping using Pore Pressure Observations: (Abstract)

Bocovich, C. (author), Kanning, W. (author), Parekh, M. (author), Mooney, M. (author)

conference paper 2017

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Numerical investigation on the bimodal structure of particle packings for a widely graded soil: (Abstract)

Winkler, P. (author), Salehi Sadaghiani, M.R. (author)

conference paper 2017

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Managing long-term and large-scale datasets from distributed fiber optic dam/dike monitoring systems: (Abstract)

Blin, R. (author), Inaudi, D. (author)

conference paper 2017

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Micro-scale considerations on the onset of contact erosion: (Abstract)

Scheuermann, A. (author), Harshani, H.M.D. (author), Galindo-Torres, S. (author), Aminpour, M. (author), Bittner, T. (author), Li, L. (author)

conference paper 2017

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The Coursier Dam sinkholes: a case study of backward erosion as a consequence of filter incompatibility: (Abstract)

Fannin, R.J. (author), Roos, D. (author)

conference paper 2017

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Modification of soil properties induced by suffusion: mechanical and X-ray tomography characterization: (Abstract)

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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Merging criteria for the definition of a local pore and the CSD computation of granular materials: (Paper and Abstract)

Seblany, F. (author), Homberg, U. (author), Vincens, E. (author), Winkler, P. (author), Witt, K.J. (author)

Granular filters are materials used to avoid mass transport under seepage flow. They are installed in zoned dams or on the downstream slope of levees to prevent the wash out of soil particles through the core of the earth structures or through its foundation. This migration is stopped if the particles are blocked on their pathway by a...

conference paper 2017

document

Online Alarming for Internal Erosion: (Paper and Abstract)

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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Resistance to erosion of lime treated soils and perspectives for coastal dikes: (Paper and Abstract)

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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The influence of the leakage length on the initiation of backward erosion piping: (Paper and Abstract)

Bezuijen, A. (author)

The earliest relation describing the risk of backward erosion piping, from Bligh in 1915, calculates an overall gradient over the dike. This gradient should be lower than a certain value depending on the material of the dike foundation for the dike to be safe. Later developments rationalize this number, showing the influence of grain size,...

conference paper 2017

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Development of a coaxial cell for porosity measurements during contact erosion experiments: (Paper and Abstract)

Bittner, T. (author), Bore, T. (author), Scheuermann, A. (author), Bajodek, M. (author), Witt, K.J. (author)

The rearrangement of soil particles during erosion, which is basically a transient mixing of base and filter particles, is accompanied by changes in porosity, leading to overall settlements which frequently can be severe for geotechnical structures such as levees. Therefore, not only the geometric and hydraulic boundary conditions, but also...

conference paper 2017

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Influence of the curing time of a newly placed silty soil on the resistance against concentrated leak erosion: (Abstract)

Berguin, P. (author), Mercier, P. (author), Mallet, T. (author), Bonelli, S. (author), Fry, J.J. (author)

conference paper 2017

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Numerical simulation of the groundwater flow leading to sand boil reactivation in the Po River: (Paper and Abstract)

García Martínez, M.F. (author), Marchi, M. (author), Tonni, L. (author), Gottardi, G. (author), Bezuijen, A. (author), Rosso, A. (author)

The reliability of river embankments is essential for flood risk management. The Po River, which flows through the North of Italy, is safeguarded over half of its length by major river embankments. Performance assessment of such water-retaining structures has become a major concern following some significant flood events in the past. Among the...

conference paper 2017

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A finite element method for piping erosion in levees: (Abstract)

Rotunno, A.F. (author), Callari, C. (author), Froiio, F. (author)

conference paper 2017

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Erosion behaviour of gap-graded soils due to upward flow: (Paper and Abstract)

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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Improvement of erodibility of a sand (sandy soils) treated by microbially induced urea-based carbonate precipitation: (Abstract)

Oxarango, L. (author), François-Lopez, E. (author), Mor, H. (author), Béguin, R. (author), Esnault-Filet, A. (author)

conference paper 2017