Annual meeting EUROPEAN WORKING GROUP on INTERNAL EROSION IN EMBANKMENT DAMS & THEIR FOUNDATIONS April 26th to 29th 2011, Brno, Czech Republic

Organizers:
University of Technology Brno
Pöyry Environment a.s.
VODNÍ DÍLA-TBD a.s.
EDF CIH

Flyer, Programme

Papers

Day 1, April, 26, 2011

Session 1: Case studies, data bases of incidents and failures, lessons learnt from incidents

Chairmen: Vadim Radchenko and Steve Garner

• O’Leary T. M. – Schaefer J. A. – Redlinger Ch. G., Recent US Army Corps of Engineers Dam Case Histories of Internal Erosion
• Engemoen W.O., Bureau of Reclamation experiences with internal erosion incidents
• Vogel A. – Courivaud J. R. Internal Erosion Data Base IEDB – An international web based database on dam failure cases
• Hanneman D. L., 3 Case Studies of Recent Internal Erosion Incidents at Bureau of Reclamation Dams
• Žatecký S., Hodák J., Failures on small dams due to internal erosion
• Blais J. P., Chulliat O., Recent examples of internal erosion remediation works in the (northern) french alps
• Fannin R. J., Garner S. G., Crawford-Flett, K. Case study of piping incidents at Coursier Dam
• Torres R. L., Dispersive clays and dam embankments
• Belkova I. N.,Glagovsky V. B., Radchenko V. G., Assessment of Seepage Strength of Earth Dams
• Wörman A., Leakage scenario for erosion tunnels in Trängslet Embankment dam – Models and permeability tests

Session 2: Criteria, laboratory research and interpretation

Chairmen: Jean-Jacques Fry and Robin Fell

• Hoffmans, G. – Wolters, G. – Verheij, H., Turbulent groundwater flow in granular filters
• Herrier, G. – Lesueur, D. – Puiatti, D. – Auriol, J. C. – Cuisinier, O. – Chevalier, C. – Haghighi, I. – Bonelli, S., Increasing erosional strength against piping and internal erosion by use of lime treatmentvan
• Beek, V. M. – Rietdijk, J. – Luijendijk, M. S. – Barends, F. B. J., Influence of vertical loading on underseepage piping in uniform sand
• Fannin, R. J. – Moffat, R. M. – Li, M., Internal instability: empirical and theoretical criteria for soils evaluation
• Ravinger, R. – Turček, P., Some Results from Laboratory Verification of Soil Stability
• Popielski P., The numerical modeling of changes in the slope parameters in Dychow as a result of backward erosion and suffusion
• Bonelli, S. – Benahmed, N., Piping flow erosion in water retaining structures

Day 2, April, 27, 2011

Session 2: Criteria, laboratory research and interpretation

Chairmen: Jean-Jacques Fry and Robin Fell

• Benamar, A. – Karoui, T. – Bennabi, A. – Wang, H., Experimental study of the suffusion of non cohesive heterogeneous soils
• Khaddour, A. – Julinek, T. – Řiha, J., Comments on Istomina research on external suffosion / fluidisation
• O’Sullivan, C. – Shire, T., Particle scale numerical modelling to develop insight into suffusion in granular filters
• Fannin, R. J. – Luthi, M. – Millar, R., Contact erosion: observations on the Hole Erosion test
• Beguin R. Faure Y-H. Picault C. Curzi C. Duchesne L. Fry J-J Courivaud J-R., Large scale tests on contact erosion along the interface of different soil layers
• Marot, D., Erodibility characterization for volume erosion and interface erosion by energy approach

Session 3: Engineering assessment, risk analysis and discussion

Chairmen: Jonathan Fannin and Jaromír Říha

• Garner, S. Proposed Development of a Fully Coupled Internal Erosion Model
• Brown, A. Recent developments in the UK in risk based reservoir safety management practice
• Čejda, M. – Řiha, J. Reliability assessment of internal erosion initiation
• Redlinger, Ch. G. – O’Leary, T. M. – Henn, K. E. – Scott, G. A. Current Methodology and Research at the Corps of Engineers for Assessing Internal Erosion Risks
• Farmer, B. M. – Navin, M. P. – Vroman, N. D. – Schwanz, N. T. Development of Risk Assessment Methods with Regard to Internal Erosion at Corps of Engineers Levees
• Sjah, J. – Vincens, E. Calibration of an inverse method to compute the Constriction Size Distribution for granular filters
• Dornstädter, J. Pore velocities and discharge from temperature probes

Session 4: Methods of inspection and methods of surveillance

Chairmen: Pontus Sjödahl and Rodney Bridle

• Monnet, J. The Geomechameter, a new in-situ apparatus
• Sjödahl, P. – Johansson, S. Numerical modelling of temperature effects related to seepage in embankment dams
• Lopes, S. P. – Fargier, Y. – Luczak, A. – Francois, D. – Fauchard, C. – Co^te, P. DC-electrical resistivity tomography for earthen embankment dike survey: improvement strategies in between 2D and 3D approaches
• Duchesne, L. – Garandet, A. – Frappin, P. The advantages of multicriteria analysis for diagnostics of internal erosion phenomena
• Monnet, J. – Plé, O. – Nguyen, D. M. The Cross Erosion Test, Preliminary Results
• Etzer, T. – Aufleger, M. – Goltz, M. – Perzlmaier, S. – Dornstädter, S. Development of an automated measuring system based on active temperature method for seepage monitoring in embankment dams
• Sjödahl, P. – Johansson, S. – Dahlin, T. Investigation of shallow leakage zones in a small embankment dam using repeated resistivity measurements

Day 3, April, 28, 2011

Discussion on drafts of new ICOLD bulletins

Day 4, April, 29, 2011

Technical tour