TECHNICAL AND SOCIAL PROGRAM

THURSDAY, AUGUST 28

Pre-Congress Activities

Virtual Technical Course 1 | Free Access for Registered Congress Attendees

10:00-12:00

Key Challenges in Filtered Tailings: Process, Stability, and Environmental Risk
Joe Scalia, Associate Professor, Colorado State University, USA; Linda Figueroa, Professor, Colorado School of Mines, USA; and Todd Wisdom, Principal Consultant (Non-Conventional Tailings), SRK Consultants. USA

FRIDAY, AUGUST 29

Pre-Congress Activities

Virtual Technical Course 2 | Free Access for Registered Congress Attendees

14:00-16:00

Water Management and Balance in Tailings Deposits
Álvaro Ossandón, Gonzalo Suazo and Víctor Araya, Academics, Departamento de Obras Civiles, Universidad Técnica Federico Santa María, Chile

MONDAY, SEPTEMBER 01

Pre-Congress Activities

Virtual Technical Course 3 | Free Access for Registered Congress Attendees

16:00-19:30

Chemistry of Tailings Water: What Determines It? What Does It Tell Us?
David Rubinos, Nicolás Orellana, and Jacques Wiertz, Researchers, SMI-ICE-Chile; and Mansour Edraki, Sustainable Minerals Institute, The University of Queensland, Australia

WEDNESDAY, SEPTEMBER 03

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 1: Geotechnics and Dam Safety I
Moderator: Rosa Figueroa, Technical Manager, Operations and Tailings Projects, Antofagasta Minerals, Chile

Session 2: Processed and Dewatered Tailings I
Moderator: Marco Becerra, Chief Executive Officer, BH Inversiones, Chile

Session 3: Innovations, Studies and Operational Experiences I
Moderator: Luis Paredes, Regional Principal Specialist in Geotechnical & Tailings, Ausenco

08:30

Day 1 Program Update

Day 1 Program Update

Day 1 Program Update

08:40

CPT-Liquefaction Susceptibility Evaluation of Tailings
Iván Contreras, Aaron Grosser and Dafar Obeidat, Barr Engineering, USA

Capex and Opex Reduction when Filtering Fine and Coarse Tailing Fractions Separately

Jurgen Hahn and Timo Dobler, Bokela, Germany

Adaptive Design and Construction of Hentys TSF: Balancing Material Constraints and Stability
Mauricio Medina, GHD, Australia; and Nicolás de la Maza and Matías Silva, GHD, Chile

09:00

Essential Geotechnical Considerations for Safer Tailings Storage Facility Design, Construction and Operation
Bing Wang, Stantec, Chile

Filter Press as Solution for Tailings Dewatering: Slurry Characteristics and Their Impact on the Process Tuning
Andrea Grosso and Francesco Kaswalder, Diemme Filtration, Italy

Implementation of a Detailed Raising Model and Planning System for a Tailings Dam Construction
Harold Bolaños, Minera Los Pelambres, Antofagasta Minerals, Chile

*AUTHOR UNABLE TO PRESENT. PAPER PUBLISHED IN PROCEEDINGS

09:20

Comparison of Cyclic Simple Shear Testing on Both Remolded and Undisturbed Mini-Block Samples
Scott Lines, Nicolas Pereira and Adam Lines, Red Earth Engineering a Geosyntec Company, Australia

Numerical Modeling of Underground Stope Stability Using Paste Tailings for Sustainable Mining Design
Ricardo Valdebenito, Emmanuel Fuentealba, Francisco González and Gustavo Valdebenito, RVIA, Chile; and Adeline Delonca, Universidad Técnica Federico Santa María, Chile

Dam Lift Design and Execution in an In-Pit Tailings Storage Facility: A Case Study

Jorge López and Álvaro Gutiérrez, Capstone Copper, Chile

09:40

Estimating In-Situ Void Ratio for Tailings Deposits using an Advanced Sampling Device
Ray Wood, Fugro, UK; Peter Looijen and Verónica Suárez, Fugro, The Netherlands; and Óscar Vera and Marcelo Garrido, Fugro, Chile

Flow Failure of Filtered Tailings Under Monotonic Loading
Brahian Román Cabrera and Martín Villanueva, SRK Consulting, Peru

Commissioning a Centerline Cycloned Tailings Dam: Challenges and Lessons Learned

Nilson Saldía and Álvaro Gutiérrez, Capstone Copper, Chile

10:00

No Technical Presentation

Filter Fabric Performance in Tailings Filtration: The Role of Composition and Rheology
Gabriela Couto, Valmet, Brazil; and Edimar Dias, Gerdau Mineração, Brazil

Monitoring and Management of Tailings through the National Observatory for Geological and Mining Hazards

Cristóbal Carrasco, Santiago Fuentes, Silvia Arce, Hugo Neira and Andrés Gómez, Sernageomin, Chile

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 4: Geotechnics and Dam Safety II
Moderator: Ghio Arenaldi, Geotechnical Engineer, Gestiona Consultores, Chile

Session 5: Processed and Dewatered Tailings II
Moderator: Samuel Saunders, Tailings Operations Manager, Minera Cerro Verde, Peru

Session 6: Innovations, Studies and Operational Experiences II
Moderator: Danielle Menezes, Principal Tailings Excellence, BHP, Brazil

11:00

Modelling the Effect of Spatial Variability in Tailings Shear Strength on Slope Stability
Zharry Bueno, University of Brasília, Brazil; and Ariadne Silva and Thiago Bretas, TBretas Consultoria, Brazil

Enhancing HDS Performance through Vertical Drainage: Laboratory Testing
Nicolás Bustamante, Jaime Musso and Gonzalo Suazo, Universidad Técnica Federico Santa María, Chile; Phil Newman, Anglo American, UK; and Andrea López, Anglo American, Chile

Practical Progress in Tailings Beach Slope Prediction: An Updated Empirical Model with Integrated Field Data and Probabilistic Enhancement

Hugo Quelopana, Gestiona Consultores, Chile

11:20

Innovation and Evaluation of Tailings Storage Facilities: Methodology and 3D Limit Equilibrium Models for Complex Scenarios
Bastián Rojas and Ignacio Escudero, Seequent, Chile; Rolando Moraga, Pucobre, Chile

Operation and Control Parameters of a Filtered Tailings Deposit during the Deposition Stage
Elizabeth Díaz, Cristian Farías and Katherine Ascencio, Compañía Minera del Pacífico, Chile

Open Pit Reuse in Mining: From Tailings Storage to Energetic and Sustainable Use
Ramón Nazar, René Lagas, Pablo Vásquez and Pamela Alhucema, SHIMIN Ingeniería, Chile

11:40

Influence of Hydraulic Segregation on Geomechanical Behavior of Copper Tailings: Salobo Mine
Carlos Lima, Henrique Guerzoni, João da Costa, Gustavo Belotto, Felipe Barbosa, José Wanderley, Juliano Ferreira, Jean Lima and Rafael Santos, Vale, Brazil

Dry Stacking of the Samarco Filtered Tailings Sand
Wanderson Silverio, Domingos Neto and Viviane Rezende, Samarco, Brazil

Using Magnetic Properties for Copper Prediction in Mine Tailings with Spatial Machine Learning
Elizabeth Lam, Brian Keith, Rodrigo Rojas, Christian Herrera, Javier Urrutia and Ítalo Montofré, Universidad Católica del Norte, Chile; and Jaume Bech, Universidad de Barcelona, Spain

12:00

Evaluation of the Critical State Line of Phosphate Ore Tailings
Júnio Fagundes, Naiala Gomes and Felipe Souza Cruz, DF+ Engenharia, Brazil; Thiago Oliveira and Ewerton Rodrigues, The Mosaic Company, Brazil

Game-Changing Technology for Large Scale Filtered Tailings
Juan Ccarita, Oliver Whatnall and Ricardo Santander, Jord International, USA; and Stuart Wilson and Sam Caldwell, Jord International, Australia

Geotextile Tubes in the Construction of Dikes for Tailings Management
Lizeth Ardila and Eduardo Guanaes, HUESKER, Brazil; Morné Breytenbach, HUESKER, Australia; and Marie-Therese van Keßel, HUESKER, Germany

12:20

Modeling the Evolution of Pore Pressure of Dykes Founded on Conventional Tailings Deposits
Antonio Esteban and Rodolfo Morales, JRI Ingeniería, Chile; and Aldo Tamburrino, Universidad de Chile

Hydraulic Dewatered Stacking Demonstration: Site Characterization Campaign
Ray Wood, Fugro, USA; Phil Newman, Anglo American, UK; Andrea López, Anglo American, Chile; and Marcelo Garrido, Fugro, Chile

Use of Remote Monitoring And Artificial Intelligence To Optimize Piston-Diaphragm Pumps Availability
Unai Gamboa and Jorge Guerrero, Abel, Spain; Alexander Janzon, Abel, Germany; and Nicolás Ponce, Tecfluid, Chile

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 7: Geotechnics and Dam Safety III
Moderator: Luis Valenzuela, Geotechnical Consultant, Chile

Session 8: Governance, GISTM and Risk Analysis I
Moderator: Rodrigo Friz, EoR Consultant and GISTM Implementation Consultant, Chile

Session 9: Rheological and Chemical Aspects
Moderator: Christian Ihle, Chief Innovation Officer, SHIMIN Engineering, Chile

14:10

Case Study: Comparison of Pseudo-Static Analysis Using Assumpçãos Map and Bray & Macedo Method
Daliana Possari and Isabella Viel, Vale, Brazil; Bruna Braga, Progen, Brazil; Henrique Mendes, Maria Eduarda Borba and Ana Lúcia Yoda, Tractebel, Brazil

Proposed Approach to Select Earthquake Ground Motions in the Context of GISTM: Discussion Paper
Marcelo Martínez, WSP, Argentina; and Alan Hull, Hull Seismic Review, USA

Evaluation of Rheological Test Methodologies for Clayey Silt: Physical and Numerical Modelling Validation Approach

Renathielly Brunetta, Jéssica Souza, Vitória Pfaffenzeller, Marcos Palu, José Pretto and Marianne Neves, Fugro, Brazil

14:30

Numerical Deformation Analysis of a 100 m High Tailings Dam: Validation Against Instrumentation Data
Eric Krumm, BGC Engineering, Chile; Saman Zarnani, BGC Engineering, Canada

Safe Closure of Tailings Storage Facilities: Application of GISTM for Responsible Management
Germán Toledo, Arcadis, Chile

Application of Online Rheology for the Optimization of Tailings Thickening
Walter Díaz, Vicente Bustamante, Miguel Parra and Arturo Rock, Konatec, Chile; Leopoldo Gutiérrez, Konatec and Universidad de Concepción, Chile

14:50

Comparative SPT Energy Evaluation in Automated Systems for Safer Tailings Structures Design
Rafael Piton, Ezequias Oliveira and Marieli Biondo, Vale, Brazil; Guilherme Freitas and Carlos Ribeiro, Geocontrole, Brazil; and Helena Nierwinski, Federal University of Santa Catarina, Brazil

Evaluation of Effective ALARP through Quantitative Risk Assessment
Víctor Tovar, Fabiola Serazo, Giosser Arica, SRK Consulting, Peru; and Franco Oboni, SRK Consulting, Canada

Rheological Testing For Dam Break Modelling: Further Development
Francisco García, Gordon McPhail and Roxana Ugaz, Water Waste and Land, Australia

15:10

Sensitivity-Based Geotechnical Assessment of a TSF with Complex Foundation Conditions and Non-Conventional Upstream Raises: A Case Study
Alejandro Calvo and Diego Cobos, SRK Consulting, Colombia

Lessons Learnt from the Turmaline Tailings Stack Failure base on GISTM
Danielle de Menezes, BHP, Brazil; Jerónimo Covacevich, BHP, Chile; and Hernani de Lima, Universidad Federal de Ouro Preto, Brazil

Evaluation of Bauxite and Copper Tailings Rheology: Particles Agglomeration Mechanism
Daniel Bortoleto, Ecolab, Brazil; and A. Costa, R. Angélica and S. Paz, Universidade Federal do Pará, Brazil

15:30

Embracing Uncertainty: A Bayesian Approach to Tailings Dam Design in Tropical Environments
Darym Campos, José Veras and Denis Costa, Progen, Brazil; and Fernanda Sol, Stephanie Ferreira, Murilo Borges and Paulo Gomide, Vale, Brazil

Development and Integration of an Environmental and Social Management System in Tailings Management Processes
Samuel Cuellar, Yerko Alvial and Hugo Quelopana, Gestiona Consultores, Chile; and Álvaro Gutiérrez and Jorge López, Capstone Copper, Chile

Preliminary Assessment of Passivation Technology for Preventing Acid Mine Drainage in Copper Tailings
Marcela Calderón, Dilan Campos, A. Nieto, David Rubinos and Jacques Wiertz, SMI-ICE-Chile; T. Ortiz and S. Paredes, U. del Desarrollo, Chile; and J. Gerding and O. Jerez, U. de Concepción, Chile

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 10: Geotechnics and Dam Safety IV
Moderator: Pablo Valdés, Senior Geotechnical Engineer, ARDUM, Chile

Session 11: Governance, GISTM and Risk Analysis II
Moderator: Amanda Hevia, Principal Conventional Tailings, BHP, Chile

Session 12: Hydraulics, Seepage and Water Management
Moderator: Sebastián Albornoz, Senior Civil Engineer Tailings, DLS Ingeniería, Chile

16:30

Design Optimization of the Los Diques TSF Dams Filter Material
Maximiliano Thollander, Minera Candelaria, Chile; and Alejandra Neira and Susana Cornejo, WSP, Chile

Screening-Level Probability of Failure Estimation: Tool Revisions and Case Study Examples
Brad Russell, Morteza Mohamadi, Stephanie Bale and Michael Porter, BGC Engineering, Canada

Cut-off wall construction in High Salinity Environment at the Dead Sea in Jordan: The right tailored solution
Michael Baltruschat and Esteban Venegas, BAUER Spezialtiefbau, Germany; Georges Abdo, BAUER International, Jordan; and Mazin Adnan, BAUER Spezialtiefbau, Jordan

16:50

3D Seismic Deformation Analysis of a Filtered Tailings Storage Facility under Andean Conditions
José Luis Sierra and Frank Pérez, WSP, Peru

Pursuing the ALARP Principle in TSF Risk Assessment: A Case Study from Mantoverde TSF
Nilson Saldía and Álvaro Gutiérrez, Capstone Copper, Chile; and Bruno Espinace and René Molina, GA Consultores, Chile

A Comparative Study of 2D and 3D Transient Infiltration Analyses In A Tailings Dam
Roxana Ugaz, Erick Alvarado, Arnold Quispe and Aldair Quispe, Water Waste and Land, Australia

17:10

Methodology for Optimization of Geological-Geotechnical Investigation Campaigns in Waste Piles: A Case Study
Bruna Braga, Progen, Brazil; Alison Norberto, Leandro Amaral, María Rodrigues and Fernanda Gavioli, TPF Engenharia, Brazil; and João Tavares and Daliana Possari, Vale, Brazil

Process Risk Management as an Enabler for the Implementation of GISTM in CMPs Tailings Storage Facilities
Katherine Ascencio and Claudia Monreal, Compañía Minera del Pacífico, Chile; and Bruno Espinace and María José Zubieta, GA Consultores, Chile

Challenges of Tailings Transport Pumping Systems In Negative Static Head Applications
Cristian Bertolo, Cristian Giner and Gonzalo Laciar, Knight Piésold, Argentina

17:30

Method for Determining the Minimum Void Ratio by Controlled Volume
João Tavares, Daliana Possari and Rubia Borges, Vale, Brazil; Guilherme Valentim, Progen, Brazil; and Otarcione Cesário, Diefra Soluções em Engenharia, Brazil

Engineer of Records Role: Owners Vision
Carlos Vilches, René Orellana and Carolina Reyes, Codelco, Chile

Hydraulic Evaluation of Tailings Transport Systems In Mountainous Terrain: Density Wave Analysis
Alexander Manos and Stuart Flett, Knight Piésold, USA; and Cristian Giner, Knight Piésold, Argentina

BALLROOM A & B

Inaugural Ceremony

18:10-19:00

Welcome Words

Mimy Mackenzie, Conferences Manager, Gecamin, Chile
Hugo Quelopana, Tailings 2025 Program Director; Engineering Manager, Gestiona Consultores, Chile
Jacques Wiertz, Tailings 2025 Co-Organizer, Environmental Rehabilitation and Ecosystem Dynamics Team Leader, SMI-ICE-Chile, University of Queensland, Australia
Gonzalo Suazo, Tailings 2025 Co-Organizer; Assistant Professor of the Department of Civil Works, Universidad Técnica Federico Santa María, Chile
Priscilla Nelson, Tailings 2025 Co-Organizer, Professor, Department of Mining Engineering, Colorado School of Mines; Founder of The Tailings Center, USA

19:00-19:10

Towards Tailings Management with Global Standards: DS 248 Regulatory Update
Andrés León, Acting National Director, Sernageomin, Chile

19:15-19:40

Resilient Tailings and Water Management: Driving Global Standards from Australia to the Andes
Pamela Soto, Manager Tailings & Water Australia, MMG, Australia

THURSDAY, SEPTEMBER 04

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 13: Geotechnics and Dam Safety V
Moderator: Gonzalo Suazo, Academic, Universidad Técnica Federico Santa María, Chile

Session 14: Processed and Dewatered Tailings III
Moderator: Bruno Espinace, General Manager, GA Consultores, Chile

Session 15: Innovations, Studies and Operational Experiences III
Moderator: Edgar Quiroz, CEO, Frame, Peru

08:30

Day 2 Program Update

Day 2 Program Update

Day 2 Program Update

08:40

Dense 3D Characterisation of Tailings Dams for Engineering and Safety Performance
Rod Eddies and Stephane Sol, Fugro, The Netherlands; Ray Wood and David Valintine, Fugro, USA; and Marcelo Garrido, Fugro, Chile

Development of a Record-breaking Paste Thickener
Sergio Ríos, Mauricio Villanueva, Eduardo Salas and Julio García, Southern Cone Technology, Chile; and Carlos Peña, CPL Ingeniería, Chile

Mining’s Biological Analogy: Future Opportunities for Sustainable Change
Priscilla Nelson, Colorado School of Mines, USA

09:00

Comprehensive Approach for Developing Hypothetical Failure Study of Waste Dumps
Jean Lucas Belo, Pedro Thá and Marcelo Miqueletto, Intertechne Consultores, Brazil

A Successful Collaboration Used to Create a Novel Filtered Tailings Transportation and Placement Method
Rajko Josipovic, Rio Tinto, Australia; Tony Tran, BHP, Australia; Todd Wisdom, Paterson & Cooke, USA; Gabriel Moniz, BEUMER Group, USA; Waldo Dressel, Red Earth Engineering, Australia

Structural Optimization of Modular Barges for Water Recovery in Tailings: The San Rafael Mine Case
Yonatan Luque, Hidrostal, Peru

09:20

Failure Mode definition for a Tailings Storage Facility with complex configuration
Marianne Neves and Vitor Aguiar, Fugro, Brazil; and Guilherme Piuzzi, Fugro, USA

Radflow Feedwell: New Step on Thickening
Diego Rubio, Roytec Global, Chile; and Peter Sampson, Roytec Global, Canada

Effects of in-situ dewatering and compaction of copper tailings using mechanical consolidation
Oscar Santiago and William McAdam, Phibion, Australia; and Rafael Menezes, Phibion, Chile

09:40

3D Modeling on the Analysis of the Causes and Performance of Corrective Measures for Pathologies in a Tailings Dam
Pedro Thá, Raphael Soares, Rafael Modesto, Marcelo Miqueletto and Jean Lucas Belo, Intertechne Consultores, Brazil

Quality Control of a Tailings Dry Stack Pile using CPTu Tests: A Case Study
Marcus Dias, Mariela Silva, Dieggo Santos and Ana Marinho, Vale, Brazil
*AUTHOR UNABLE TO PRESENT. PAPER PUBLISHED IN PROCEEDINGS

Merged Approach to Optimize Water Management and Tailings Storage Capacity at the San Ciprian TSF
Iván Orea, ALCOA, Australia; and Carmen Rial, ALCOA, Spain

10:00

Lessons Learned in the Interpretation of SCPT on a Tailings Facility using the CSSM framework
Jorge León and Claudia Vallejos, Knight Piésold, Chile

No Technical Presentations

TrankET: A Satellite-Based Evaporation Framework Water Recovery in Mining Tailings
Ítalo Moletto, Tomás Acuña, Cristian Mattar, Alejandro Nemchín and Ignacio Albornoz, AgroSpace, Chile; and Álvaro Holzapfel and Daniel Benitez, Cía. Minera Doña Inés de Collahuasi, Chile

BALLROOM A & B

Plenary Session 1
Moderator: Silvana Dal Pozzo, Tailings Manager, Antofagasta Minerals, Chile

11:00-11:30

Integrating Risk, Change Management and Performance in Multinational Operations
Reza Moghaddam, Global Practice Lead Tailings, Lundin Mining, Canada

11:30-12:00

Integrated Strategy for High Reliability Tailings: Innovation and Governance at Las Bambas
Erik Medina, Principal Tailings - Regional Strategic Planning, Minera Las Bambas MMG, Peru

BALLROOM A & B

Plenary Session 2
Moderator: Andrea López Schmidt, Principal Tailings Innovation, Anglo American, Chile

Plenary Session Sponsor

12:20-12:50

Vale Base Metals: Governance and GISTM Implementation
José Wanderley Costa, Head of Geotech, Vale Base Metals, Canada

12:50-13:20

Tailings 4.0: Smart Technologies for an Integrated and Resilient Life Cycle
Nicolás Echeverría , Geotech & Tailings Manager Chile, Brazil & Argentina, Ausenco

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 16: Geotechnics and Dam Safety VI
Moderator: Emilio López, Senior Geotechnical and Tailings Engineer, Nava Consulting, Chile

Session 17: Governance, GISTM and Risk Analysis III
Moderator: Katherine Ascencio, Superintendent of Tailings and Water Management, CMP, Chile

Session 18: Technologies and Instrumentation for Monitoring and Surveillance
Moderator: Priscilla Nelson, Professor, Colorado School of Mines, USA

14:50

Behavior of Reconstituted and Undisturbed Tailings Samples: Implications for Liquefaction Assessment
David Camacho and Paulo Coelho, University of Coimbra, Portugal; Felipe Gobbi Silveira, FGS Geotecnia, Brazil

Comparative Analysis Between GISTM Topics III, IV, and V with the Draft Proposal for New DS 248
Bruno Espinace, María José Zubieta and Willy Piñones, GA Consultores, Chile

Real-time Resistivity for Water Related Process Monitoring in TSF: Case Study from South Africa
Greta Tresoldi, LSI Lastem, Italy; Azadeh Hojat, Regina Bianchi and Luigi Zanzi, Politecnico di Milano, Italy

15:10

Application of Digital Engineering in the Technological Control of Tailings Dam Decharacterization Works

Naiara de Lima, Mariana Duarte, Thiago Ribeiro, Rogério Torres, Emerson Vieira, Terêncio Rocha, Guilherme Mesquita, Vanessa Guimarães and Luciana Sakuma, Vale, Brazil

Integrating RCEM into TSF Risk Evaluation: Guidelines for Life Loss Estimation
Karla Burgos, Elizabeth Herrera, Marcelo Pacheco, Emilio López, Mauricio Ortuzar and Andrea Esquivel, Nava Consulting, Chile

A Combined Approach for RTM and Structural Health Evaluation of Tailings Dams
Maren Katterbach, Lombardi Engineering, Switzerland; Rafael Basso, Lombardi Engineering, Chile; C. Scapozza, S. Schutz, F. Hajdaj and S., U. of Applied Sciences and Arts, Switzerland; R. Gardenghi, Huggenberger, Switzerland

15:30

Design of a Geosynthetic-Reinforced Wall for Tailings Containment

Andrés León and Daniel Zúñiga, Axios Engineering, Chile

Community Engagement in Mantoverde TSF’s Emergency Plan: Enhancing Our GISTM Compliance Path
Liliana Vergara and Nilson Saldía, Mantoverde, Capstone Copper, Chile; and Alejo Gutiérrez, Capstone Copper, Canada

Innovative TSF Monitoring with SARDrone: Daily 3D Displacement Insights without Geometric Constraints
Javier Duro, G. Ruiz, M. Cuenca, L. Yam, G. Masalias, E. Makhoul, R. Iglesias, A. Heredia, Á. González, G. Centolanza, A. Faridi, D. Monells and F. Chacon, Dares Technology, Spain

15:50

Characterisation of Tunnel-Generating Materials in Arid Regions Used as Construction Material in Tailings Storage Facilities
Laura Moreno and Marcelo Llano, Red Earth Engineering, Australia

Advancing in Tailings Management and GISTM compliance using reliable data and Digital Technology
Patricia Braga and Fabiola Ivo, Hatch, Brazil

Seismic Interferometry Monitoring for Tailings Storage Facilities
Rodrigo Fuentes, Benjamin Witten and Camilla Rodrigues, Nanometrics, Canada

16:10

Developing the VSTu Test for Tailings In-Situ Shear Strength Measurement. Part 1: Design
Javier Ubilla, Nava Consulting, Chile

General Recommendations for the Construction Records
Víctor Aravena, José Campaña and Jaime Urquidi, Arcadis, Chile

Petrophysical Estimation of Moisture Values in Tailings Deposits Using Electrical Resistivity Tomography
Aaron Moya and Igor Bravo, Geosinergia, Chile; Diana Comte, Daniel Díaz, Brian Townley, Universidad de Chile; and Adrien Dimech, École de Technologie Supérieure, Canada

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 19: Geotechnics and Dam Safety VII
Moderator: Sergio Carrasco, Academic, Universidad Técnica Federico Santa María, Chile

Session 20: Hydraulics, Seepage and Water Management II
Moderator: Jaime Musso, Geotechnical & Tailings Engineer, GHD, Chile

Session 21: Tailings Closure
Moderator: Marcela Cubillos, Engineer Mine Closure, Stantec, Chile

17:10

A Revised Constitutive Model for the Undrained Response of Tailings
Anibal Ríos, Franklin Olaya and Frank Pérez, WSP, Peru

Hydraulic Safety in Dam Decharacterization: Hydrological Risk Assessment, Average Return Interval and Temporary Solutions
Marina Oliveira, Klohn Crippen Berger, Brazil; and Jim Heaslop, Klohn Crippen Berger, Australia

Lifecycle Management of TSFs: Bridging Operation and Closure

Hernán Cifuentes, TAILINGS HC, Australia

17:30

A Methodological Framework for Experimental Design and Validation of Waste Rock: Tailings Mixtures in the Context of the Commingling Technique
Nicolás Bustamante and Gonzalo Suazo, Universidad Federico Santa María, Chile

The Role Of Rheology Tests In The Design And Operation Of Long-Distance Slurry Transport Systems
Cristian Giner, Gonzalo Laciar and Cristian Bertolo, Knight Piésold, Argentina; and Stuart Flett and Alexander Manos, Knight Piésold, USA

Closing Mine Tailings in Urban Environments: Integrating Technosol Solutions and Community Acceptance
Gerardo Soto, Pamela Morales and Luis Morales, Universidad de Chile; Carolina Soto, Tecnosuelo, Chile; Audrey Gallaud, Ángela Faúndez, CIREN, Chile; and Erika Hanshing, CRDP, Chile

17:50

Physical Characterization and Undrained Behaviour of a Lateritic Soil from the Brazilian Iron Quadrangle
Rodolfo Neves, Andréa Portes, Paulo Gomide and Mateus Silva, Vale, Brazil

Mathematical Correlation for Determining Required Depth to Dissipate Inflow in a Mineral Slurry Box by Using CFD
Leonardo Olavarría and Ray Martinson, Paterson & Cooke, Chile

An Innovative Approach to Repurposing Tailings for Sustainable Construction

Claudia Eugenin, Estefanía Loyola, Luis Morales, Iván Navarrete, Felipe Vargas and Álvaro Videla, Pontificia Universidad Católica de Chile

18:10

Characterization of Material from a Waste Rock Pile for Application in Dam Reinforcement
Deyse Rosa, Instituto Minere, Brazil; Marcio Leão, Pontifical Catholic University of Rio de Janeiro, Brazil; and Eduardo Diniz, CheckSlope, Brazil

Modeling the Propagation of Mining Slurry Spills: Effects of Rheology, Discharge Conditions and Topography
Cristian Reyes and Christian Ihle, SHIMIN Ingeniería, Chile

No Technical Presentations

FRIDAY, SEPTEMBER 05

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 22: Geotechnics and Dam Safety VIII
Moderator: Carolina Ahumada, Manager Geotechnical, Hydrogeology & Tailings, Pampa Norte, BHP, Chile

Session 23: Processed and Dewatered Tailings IV
Moderator: Guido Huillca, Discipline Leader and Senior Mechanical Engineer, WSP, Peru

Session 24: Innovations, Studies and Operational Experiences IV
Moderator: Pamela Garrido, Expert in Tailings Innovation, Antofagasta Minerals, Chile

08:30

Day 3 Program Update

Day 3 Program Update

Day 3 Program Update

08:40

Seismic Performance Assessment of Filtered Cake Stack: Design Optimization
Marjan Oboudi, Linda Lau and Rafael Dávila, Hatch, Canada

Operational Experiences of a Dry-Stack in South America: Life Cycle from Conception to Progressive Closure
Diego Cobos and Ana Ariza, SRK Consulting, Colombia; David Molina, Zijin Mining, Colombia

Tailings Design and Management in Cold Regions of the Andes: Challenges and Strategies
Lukas Arenson, BGC Engineering, Canada; Daniela Welkner, Alan Edmunds and Jorge Troncoso, BGC Engineering, Chile

09:00

Case Study Of The Emergency Level Rise Of The B1 Ipê Dam
Renato Fuan Jeha and Roberto da Cruz Trotta, Mineração Morro do Ipê, Brazil; Eduardo Diniz, WorldSensing, Brazil; and Márcio Leão, Pontifical Catholic University of Rio de Janeiro, Brazil

Filtered Dry Stack Tailings: A Comparison Between Non-controlled Experimental Embankments and Current Operation
Andréa Portes, Matheus Muniz, Marcus Dias, Dieggo dos Santos and Rodolfo Neves, Vale, Brazil; and Mateus Silva, Progen, Brazil

Proposed Matrix for Selecting Mining Tailings Disposal Technology in the Brazilian Amazon
Jean Lima, Carlos Lima, João da Costa, Gustavo Belotto, Henrique Guerzoni, Felipe Barbosa, José Wanderley, Rafael Santos, Vale, Brazil; Gustavo Nogueira, WALM Engenharia, Brazil

09:20

Numerical Analysis of Liquefaction in Tailings Dams Using PM4Sand and PM4Silt
Nicolás Di Giovanni, Felipe López, Rafael Iglesias and Sebastián Maureira, WSP, Argentina

Theoretical Study for Tailings Stacks Maximum Height Evaluation
Sylvia Jesus, Isabella de Souza, Anselmo Mendes, Sálefe Xavier, Nilthson Noreña and Alessandra Teixeira, Vale, Brazil; and Luana Schulz, Thiago Souza and Washington da Silva, BVP, Brazil

Sustainable Utilization of Copper Tailings in Shotcrete
Adolfo Alcayaga, René Gómez, Roberto Gómez, Vanessa Gutiérrez and Fernando Betancourt, Universidad de Concepción, Chile

09:40

The use of Artificial Intelligence and Pressuremeter tests in Tailings design
Rafael Martínez, José Quiroz and Maximiliano Jara, Pangea Geotecnia, Chile

Comparative Analysis of Compaction Tests Using Nuclear Gauge and Hilf Method in Iron Tailings
Wanessa Silva, Danielle Soares, Gisele Custódio, Tractebel Engineering, Brazil; and Marcus Dias, Dieggo Santos and Mariela Silva, Vale, Brazil
*AUTHOR UNABLE TO PRESENT. PAPER PUBLISHED IN PROCEEDINGS

Potential for Extending the Service Life of Tailings Dam Reservoirs through the Reprocessing of Deposited Material
Luiz Bahia, Douglas Souza and Sarah Luiz, Geoestável, Brazil; J. Machado and L. Franco, Progen, Brazil; and Matheus Muniz, Andréa Portes and Paulo Gomide, Vale, Brazil

10:00

Sampling of Tailings Dam Walls
Cristian Belmont and Rodolfo Morales, Enrique Siu and Hengels Castillo, JRI Ingeniería, Chile

Integration HDS with Coarse Particle Flotation (CPF)
Katherine Mansilla, Javier Vergara and Rodrigo Zapata, BBA Consultants, Chile

Effect of Mud Farming and Drying on Shear Strength of Bauxite Tailings

Shriram Srinivasan, Iván Orea and Min Kyaw, ALCOA, Australia; and David Reid, Red Earth Engineering, Australia

BALLROOM A & B

Plenary Session 3
Moderator: Carolina Ahumada, Manager Geotechnical, Hydrogeology & Tailings, Pampa Norte, BHP, Chile

Plenary Session Sponsor

11:00-11:30

Implementation of Tailings Management and Governance System: Difficulties and Challenges in Codelcos Tailings Facilities
René Orellana, Corporate Tailings Manager, Codelco, Chile; and Carolina Reyes, Tailings Management Engineer, Codelco, Chile

11:30-12:00

Slope Stability with Complementary Approaches: From Deterministic Analysis to Reliability-Based
Dennis Raddatz, Senior Geotechnical Engineer, Stantec, Chile

12:00-12:30

Capstone Coppers Tailings Management System: Insights, Outcomes, and Key Lessons
Álvaro Gutiérrez, Tailings and Waste Corporate Manager, Capstone Copper, Chile

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 25: Hydraulics, Seepage and Water Management III
Moderator: Gerardo Soto, Academic, Universidad de Chile

Session 26: Dam Break Analysis
Moderator: Paulo Oróstegui, Corporate General Manager, OITEC, Chile

Session 27: Technologies and Instrumentation for Monitoring and Surveillance II
Moderator: Carlos Vilches, Corporate Director of Tailings Development and Standardization, Codelco, Chile

14:00

Hydrogeochemical Evaluation of Hydraulic Barriers Composed of Solid Residues from Pulp Production.
Mauricio Jara, Universidad Mayor, Chile; David Zamora, Universidad Católica del Maule, Chile; Fernando Ramírez, Bioforest, Chile; and Joaquín Díaz, Universidad de Talca, Chile

Runout Modelling of a Dry Stack Tailings After a Liquefaction Event Using the Material Point Method

Mikael da Silva, Carla Pontes, Vitor Aguiar and José Pretto, Fugro, Brazil

Innovation in Tailings Supervision: Implementation of a Digital Platform for Integrated Risk Management
Consuelo Rodríguez, Abraham Figueroa and Benjamín Latorre, Arcadis, Chile

14:20

Geomembrane-Sealed Tailings Dam: Advancements at Las Bambas GFRD
Pascual Perazzo, Carpi Tech, Chile; Gabriella Vaschetti, Carpi Tech, Switzerland

Evaluation of Post-Failure Flow Considering the Vertical Position of the Hydrodynamic Inflow Condition in Numerical Tailings Dam Breach Models
Luis López and Nadia Callán, WSP, Peru

Laboratory Tests to Assess the Reliability of Vibrating Wire Piezometers for Geotechnical Monitoring
Nicolás Guzmán, Universidad de Chile; Roberto Gesche, Stantec, Chile; and Sebastián Fingerhuth, Pontificia Universidad Católica de Valparaíso, Chile

14:40

Parameter Calibration of Water Balance Model of a Near Closure TSF: Sossego Mine
Henrique Guerzoni, Gustavo Belotto, Rafael Santos, João da Costa, José Wanderley, Vale, Brazil; and Guilherme de Castro, GEOCOBA, Brazil

Numerical Modeling of Runout Distance through Multiphase Models
Rodolfo Morales, JRI Ingeniería, Chile; and Felipe Macías, Emmanuel Fuentealba, Diego Tejo, Francisco Contreras and Iván Lagos, Universidad Técnica Federico Santa María, Chile

Complementary Monitoring of Tailings Storage Facilities: Leveraging Insar and Ground Surveys
Lucas Carvalho and Ben Conway, Viridien, UK

15:00

Water management in the process of Decharacterizing the Reservoir in an Upstream Tailings Dam
Luciana Sakuma, Maria Morais, Marcus Rolim, Wanderson Victor e Cristiane Sebastião, Vale, Brazil

Evaluation of the runout of the Cadia TSF Failure Using the Modified Voellmy-Salm Rheological Model

Jimmy Tapia, Universidad Nacional de Ingeniería, Peru; and Laura Rojas, Jean Minaya and Alex Huarcaya, Ausenco, Peru

Artificial Intelligence and Machine Learning in Tailings Dam Monitoring: Predictive Stability Analysis Model
Edgar Quiroz, Frame, Peru

15:20

A Simplified Model for Estimating the Soil-Water Characteristic Curve of Mining Tailings
Jaime Musso and Gonzalo Suazo, GHD, Chile

Tailings Dam Breach Modelling: A Comparison Between HEC-RAS and FLO-2D Based on a Realworld case study
Fernanda Gallegos, Cristóbal Delgado and Valentina Pacheco, GHD, Chile

Analysis of Radar Cross Section (RCS) Variability of Moving Targets in a Mining Dam and Its Implications for Automatic Siren Activation by Doppler Radar
Diego Lage, Beatriz Clemente and Pamela Lisboa Vale, Brazil; Vitor Santos, GroundProbe, Brazil

BALLROOM A

BALLROOM B

BALLROOM C
(SALON QUIXOTE)

Session 28: Dam Break Analysis II
Moderator: Roberto Gesche, Geosciences Leader, Stantec, Chile

Session 29: Technologies and Instrumentation for Monitoring and Surveillance III
Moderator: Nathalie Jamett, Researcher, SMI-ICE-Chile

No Technical Presentations

16:20

3D Analysis of Progressive Failures in Tailings Stack
Airton Neto, Ariadne Silva and Thiago Bretas, TBretas Consultoria, Brazil; Zharry Bueno, University of Brasília, Brazil; Thales Furtado, Federal University of do Rio de Janeiro, Brazil

Geotechnical and Geophysical Characterization of a Tailings Dam Facility Using Machine Learning Techniques
Fernanda Matarazo, Flora Cezimbra and Víctor Rocha, Vale, Brazil; Craig Christensen, EMerald Geomodelling, Norway; and Fernando Pacheco and Priscila Rodrigues, EMerald Geomodelling, Brazil

No Technical Presentations

16:40

Dam Break Analysis and Runout Distance Estimation for Risk Management in Filtered Tailings Deposit
Andrés León and Daniel Zúñiga, Axios Engineering, Chile; Claudio Piñones, Independent Consultant, Chile

Lessons Learned from the Use of Casagrande Piezometers in Monitoring Tailings Deposits
Ramón Nazar, SHIMIN Ingeniería, Chile; Gonzalo Rojo, Delfing, Chile; and Hugo Quelopana, Gestiona Consultores, Chile

No Technical Presentations

17:00

Study of Hypothetical Failure in a Filtered Iron Ore Tailings Stack
André Lima, Nathani Zampirolli and Ricardo Espósito, TPF Engenharia, Brazil; and Leonardo Machado and Tadeu Torquato, Universidade Federal de Viçosa, Brazil
*AUTHOR UNABLE TO PRESENT. PAPER PUBLISHED IN PROCEEDINGS

Improvements to Spectral Classification Algorithms for Tailings Storage Facility Monitoring Using Multispectral Satellite Imagery
Felipe Altamirano and Gonzalo Suazo, Universidad Técnica Federico Santa María, Chile; and Víctor Araya, GHD, Chile

No Technical Presentations

FOYER

Poster Session

Comparison of Changes In-Situ State and Behavior of Compacted and Non-Compacted Silty-Sand Tailings
Matheus Rabelo, Emanuel Silveira, Roberto Silva, Domenico Gontijo and Thaís Lazarim, WSP, Brazil

A Small Guide to Seismic Techniques Application in Mining Areas
Camilla Rodrigues, Mark Novakovic, Benjamin Witten and Rodrigo Fuentes, Nanometrics, Canada

Enhancing Dam Safety Inspections Using a Digital Knowledge Base
Brad Russell and Erin Stewart, BGC Engineering, Canada; Katie Burkell, Cambio Earth, Canada; Trevor Ross, Hudbay Minerals Inc., Canada

Hydraulic Performance Evaluation and Optimization of Tailings Transport and Deposition System with Dissipation Rings
Mario Segovia, Edison López and Guido Huillca, WSP, Peru

Circular Economy in Mining: Transforming Copper Tailings into High-Performance Paving Stones
Elizabeth Lam, Ítalo Montofré, Vicente Zetola, Mathías Becerra, Franco Pereira and Brian Keith, Univerisdad Católica del Norte, Chile

Reduced Crest Displacements from Conditional Mean Spectrum at a Subduction-Dominated Site in Western Canada
Mohammad Bakavoli, BBA Consultants, Canada; and Rodrigo Zapata, BBA Consultants, Chile

Monitoring of Abandoned Tailings Deposits Using Drone Photogrammetry
Claudio Cáceres and Pamela Jara, Universidad de Santiago, Chile

Pseudo-Static Coefficient Adjustment by Limit Equilibrium and Time-History Analysis
Débora Vásquez, Universidad de Santiago, Chile; Rodolfo Morales, Universidad de Chile; Cristian Belmont, JRI Ingeniería, Chile; and Hengels Castillo, Universidad Técnica Federico Santa María, Chile

Effectiveness of Phytoremediation Using Zea mays L. to Reduce Pb and As in Soils Affected by Mining Tailings in Quiruvilca, 2025
Jordan Ortega, Universidad Privada del Norte, Peru

Rare Earth elements leaching from mine tailings using deep eutectic solvents
Matías Santana, Universidad Técnica Federico Santa María, Chile; and Yahaira Barrueto and José Ojeda, SMI-ICE-Chile

Experimental and Numerical Modelling of the Influence of Obstacles on Run-Out Distances in Tailings Dam Failures
Mauricio Fernández and Sergio Palma, Universidad Técnica Federico Santa María, Chile

Alkali-Activated Mine Tailings as a Sustainable and Cement-Free Backfill Solution for Future Mining Operations
Mohsen Moeenian Far, Álvaro Videla, Iván Navarrete, and Amin Hekmatnejad, Pontificia Universidad Católica de Chile

Potential Industrial Clusters for the Use of Tailings in the Construction Industry
Valentina Rivera, Universidad de Chile

Methodology to Estimate the Horizontal Seismic Coefficient of a Tailings Dam Based on an Acceptable Probability of Failure
Agustín Meriño, César Pastén and Pablo Heresi, Universidad de Chile

Copper and Cobalt Recovery from Mining Tailings via Electrodeposition Using 316L Steel Electrodes
Joaquín Aburto and Diógenes Hernández, Universidad de Talca, Chile