Annual meeting EUROPEAN WORKING GROUP on INTERNAL EROSION (EWG-IE) IN EMBANKMENT DAMS, DIKES and LEVEES & THEIR FOUNDATIONS 18-21 June 2019, Vancouver, Canada

2019 27EWG-IE The Wall

Conference Chairs
Jonathan Fannin & Desmond Hartford, Co-Chairs 27th Annual EWG-IE meeting
Stéphane Bonelli, Chairman, EWG-IE

Local Organizing Team
University of British Columbia (UBC), Department of Civil Engineering
University of British Columbia (UBC), Internal Erosion Research Group
Jonathan Fannin
Daniela Hajdukovic
Sheeraz Marfatia
Sara Ataii
Vincent Mc Clelland
Vinoth Ganapathiram 
Anays Antunes
Akilesh Sharma
Fayaz Damani
Emily Tham

Scientific committee
Stephane Bonelli, France
Elisabeth Bowman, England
Jonathan Fannin, Canada
Desmond Hartford, Canada
Didier Marot, France
Catherine O’Sullivan, England
Jaromir Riha, Czech Republic
Bryant Robbins, USA
Donatella Sterpi, Italy
Akihiro Takahashi, Japan
Vera van Beek, Netherlands

EWGIE 2019 Flyer

EWGIE 2019 Program

EWGIE 2019 Book of Abstracts

Day 1, June, 19th, 2019

WELCOME ADDRESS (R. Schubak, BC Hydro)

EWG-IE OPENING COMMENTS (S. Bonelli, EWG-IE Chair)

Session 1: Case Studies

• Why a Physically-Based Solution to the Problem of Internal Erosion in Dams? (Des Hartford)
• Applying New and Old Knowledge to Explain Internal Erosion Events (R. Bridle)
• The Failure of the Hubalov Weir Due to Piping (J. Riha)
• Assessment of Internal Erosion of Zoned Embankment Dams with Widely Graded Materials (L. Yan, M. Li, C. Anderlini)
• The Suffusion Defect at the Surface Asphaltic Lining (M. Rudolfová, J. Říha, M. Špano)
• Cleveland Dam: Terzaghi’s 1961 Recommendations on Seepage Control and Mitigation of Internal Erosion (J. Fannin)

Field Trip: The Cleveland Dam, Vancouver

• Field-Trip Notes (J. Fannin)

Day 2, June, 20th, 2019

Session 2: Backward Erosion Piping and Concentrated Leak Erosion (1/2)

• Centrifuge Modeling for Visualization of Backward Erosion Piping Progression (K. Horikoshi, S. Noda, A. Takizawa, A. Takahashi)
• A New Design and Testing of A Small-Scale Experimental Device of Backward Erosion Piping (J. Riha, L. Petrula)
• Large-Scale Test of a Coarse Sand Barrier as a Measure Against Backward Erosion Piping (E. Rosenbrand, V. van Beek, U. Förster, B. van der Kolk, A. Wiersma, J. Terwindt, D. Peters, S. Akrami, A. Koelewijn, K. van Gerven, L. Voogt, Adam Bezuijen)
• Hydraulic Losses through Sand Boils: Measurements and Theory (B. Robbins, I. Stephens, V. van Beek, A. Koelewijn, A. Bezuijen)
• Analysis of Pipe Progression during Backward Erosion Piping in the Presence of a Coarse Sand Barrier (S. Akrami, A. Bezuijen, V. van Beek, E. Rosenbrand, U. Förster, A. Koelewijn)
• 3D Numerical Simulation of Backward Erosion Piping Tube Experiments (V. M. van Beek, A. Noordman, B. A. Robbins, D. V. Griffiths)
• Application of the Random Finite Element Method to Backward Erosion Piping (B.A. Robbins, D.V. Griffiths, G.A. Fenton)

TOUR OF UBC LABORATORY TESTING FACILITIES

Session 3: Backward Erosion Piping and Concentrated Leak Erosion (2/2)

• The Hole Erosion Test: State of the Art, State of Practice and Open Questions (S. Bonelli)
• A New CSD-Based Filter Retention Criterion (F. Seblany, E. Vincens, C. Picault)
• Creation of a Flow Barrier In-Situ by Shear-Controlled Direct Aluminum-Organic Matter Floc Injection (J. Zhou, T. J. Heimovaara, S. Laumann)
• Enzyme Treatment of Soil for Erosion Control (A. Shidlovskaya, I. Shafii, J. Briaud)
• Monitoring Seepage-Induced Internal Erosion Using Acoustic Emission (T. Biller, A. Smith, N. Dixon)
• Internal Erosion Breach Model Review and Validation (J.-R. Courivaud)

CULTURAL VISIT

Day 3, June, 21th, 2019

Session 4: Suffusion & Suffosion

• On Specimen Reconstitution and Commissioning a Triaxial Permeameter (V. McClelland, J. Fannin)
• Influence of Flow Direction on Suffusion Development (D. Marot, D. M. Tran, F. Bendahmane)
• Numerical and Experimental Investigations of the Mechanical Contribution of Fine Particles in Soils in Relation with Suffusion (A. Wautier, T. K. Nguyen, R. A. Hosn, C. D. Nguyen, N. Benahmed, S. Bonelli, F. Nicot, P. Philippe)
• Internal Instability Testing of Widely-Graded Materials with Oversize Particles (V. Ganapathiraman, J. Fannin)
• Hydro-Mechanical Commissioning of a Novel Large-Scale Triaxial Permeameter (TX-P) for Testing of Widely-Graded Embankment Soils (K.A. Crawford-Flett, M.E. Stringer, S.D. Rees)
• Inflow Boundary Conditions in Triaxial Permeameter Testing (S. Ataii, J. Fannin)
• Experimental Development for Multi-Plane Access to Investigate Local Suffusion within Internally Erodible Granular Media (E. T. Bowman, N. Sanvitale, J. A. Black)
• Grain Size and Shape in the Glacial Moraine Borrow Source for the Bennett Dam (A. Antunes, J. Fannin)
• Factors that Determine Fluid Particle Interaction Forces in Dams and Flood Embankments (C. Knight, C. O’Sullivan, D. Dini, B. van Wachem)
• A Description of Suffusion Kinetics Inspired from Experimental Data (R. Gelet, K. Alaa, D. Marot, N. Nguyen, A. Fino)
• Description of the Pore Network in Granular Media Using the Delaunay Triangulation (N. Nguyen, H. Taha, D. Marot, A. Hijazi, K. Abou-Saleh)
• Application of Pore Network Models to Investigate Internal Erosion in Gap-Graded Soils (A. Sufian, C. Knight, C. O’Sullivan, B. van Wachem, D. Dini)

27th EWG-IE MEETING CLOSURE

2019 27EWG-IE meeting Cleveland Dam Vancouver

2019 27EWG-IE meeting East Abutment of Cleveland Dam Vancouver