Geomechanics of Cave Mining Hybrid Seminar

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Date/Time
Date(s) - 14 Jun 2021 - 17 Jun 2021

Location
Oceans Institute - Theatre Auditorium, The University of Western Australia

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The hybrid event format allows for participation either in-person, or online from anywhere in the world.

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2021 Caving Community of Practice – Unconference
8 am – 12 noon (AWST), 18 June 2021 | Online participation only via Zoom

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Seminar Facilitator:

Professor Yves Potvin
Professor of Mining Geomechanics, Australian Centre for Geomechanics
Yves joined the Australian Centre for Geomechanics at The University of Western Australia in 1998 and was centre director, 2000 – 2019. Professor Potvin has published more than 100 articles and is the editor/co-editor of 14 conference proceedings and books. He has over 30 years of experience in rock mechanics and mine design and has previously held managerial positions at Mount Isa Mines, the Noranda Technology Centre and worked as a mining engineer at Noranda Mines, Gaspe Division. Yves undertakes numerous collaborative industry-focused research projects and is presently involved with the ACG’s Ground Support Systems Optimisation Project, and the Stope Reconciliation and Optimisation Project. He currently participates in several geotechnical review boards.


Confirmed Presenters:

Glen Balog
Superintendent Geotechnical Engineering, OZ Minerals
Dr Ian Brunton
Principal Geotechnical Engineer, Itasca Australia Ltd
Ian has over 25 years’ experience in the mining industry as a geotechnical engineer, predominantly in caving operations. His research, consulting, and operational experience has been focused on drill and blast design and optimisation, sub-level and block cave material flow and recovery, management of cave operational risk and design, rock mass characterisation, and numerical modelling. Ian is currently a principal geotechnical engineer at Itasca.
Dr Alex Campbell
Principal Engineer Mining and Rock Mechanics, Beck Engineering Pty Ltd
Alex is a mining engineer with 15 years’ experience in operating mines and as a consultant. His experience spans underground and open pit mining, with roles including geotechnical engineering, mine production and long term mine planning. He holds bachelor’s degrees in mining engineering and civil engineering, a master’s in mining geomechanics and completed a PhD in 2019. Alex has special interests in sublevel caving, blasting and cave flow simulation, and has published over 20 papers to date. Alex is currently a principal mining and rock mechanics engineering at Beck Engineering.
Claire Chauvier
Cave Flow Engineer, OZ Minerals
Claire attended the University of Queensland and graduated in 2015 with a degree in mining and geotechnical engineering. She began her career in the mining industry as a geotechnical engineer at George Fisher Mine in Mount Isa where she learned several skills including infrastructure design, stope sequencing and backfill mix design, and fill schedules. Claire has a keen interest in data science which arose from a project in geotechnical block model development. Her passion for data science led her to apply for the cave flow engineering role at Carrapateena with OZ Minerals where she has been working on cave flow model calibration for the SLC.
Dr Daniel Cumming-Potvin
Project Lead – mXrap Development, Australian Centre for Geomechanics
Daniel completed his Bachelor of mining engineering and PhD at The University of Western Australia in 2012 and 2018 respectively. He has worked at a number of underground metal mines in Australia, specialising in the areas of ground support, monitoring and mine seismicity. Daniel is currently project lead for mXrap.
Dr German Flores-Gonzalez
General Manager Mining, Newcrest Mining Limited
Dr German Flores-Gonzalez is a mining engineer with more than 37 years of experience in the mining industry. He worked at El Teniente block caving mine, Chuquicamata open pit mine and Chuquicamata underground project of Codelco Chile. He has also worked at Cadia East block caving mine and different roles at the Head office of Newcrest Mining in Australia. He is currently general manager mining at Newcrest Mining Limited
Simon Hanrahan
Corporate Consultant (Mining), SRK Consulting
Simon has over 35 years’ international experience including underground and surface operations management, development of block cave mines and operating open pit mines above caving zones. He has led projects across the whole resources value chain: option, pre-feasibility and feasibility studies, project construction and commissioning, and mine operations. He gained mine management and construction experience in South Africa, Australia, and the USA in gold, coal, base metals, copper, platinum, industrial minerals, and diamonds. Since joining SRK in 2010, Simon has worked globally in support for caving operations and studies,  project management, due diligence, construction oversight and technical reviews for surface and underground mining projects and studies.
Yoann Hebert
Senior Geotechnical Engineer, Itasca Australia Ltd
Yoann Hebert is a senior geotechnical engineer and numerical modelling specialist with 13 years of consulting experience in the mining and civil industries, encompassing block and sub-level caving, open pit slope stability, surface subsidence and mine performance for numerous mining operations around the world. His consulting and research experience has been focused on the development and application of a 3D hybrid method to simulate cave propagation and subsidence.
Ronald Lachenicht
Principal Geotechnical Engineer, Itasca Australia Ltd
Ronald Lachenicht has 25 years’ experience in mining geomechanics ranging from consulting, research projects, and studies to mine operational experience. Over the course of his experience, positions held include manager, senior geotechnical engineer, geotechnical superintendent and principal geotechnical engineer roles with associated levels of responsibility.
A key focus of Mr Lachenicht’s experience has been to identify, mitigate and manage geotechnical risks for mining companies within open pit to high stress underground operations encompassing both weak and strong rock mass environments.
James Lett
Superintendent Geotechnical Operations Cadia, Newcrest Mining Limited
James is a geotechnical engineer with over 17 years’ experience in the mining, civil and exploration industry. James has worked in various industry and consulting roles including civil geotechnics, mineral exploration, underground coal and metalliferous operations, feasibility studies and specialises in caving geomechanics. He is currently working at Newcrest Mining at Cadia as part of the operations team responsible for geotechnical engineering across surface operations, tailings and underground mining. James is passionate about rockmass characterisation and analysing the impact of pre-conditioning on cave propagation.
Andrew Mooney
Project Director – Carrapateena Expansion, OZ Minerals
With both local and international experience, Andrew specialises in the leadership of operational teams and major project delivery. Andrew’s work has taken him across Australia, South East Asia, Africa and South America, and he has worked on the delivery of the Telfer and Cadia East caves with Newcrest, as well as operational improvement across MMG’s global operations. While registered manager of the Golden Grove site, Andrew helped lead the mining, processing, maintenance and technical teams to turn around site performance. Andrew is passionate about building team capability and engaging new ideas to deliver projects and operational improvement. With OZ Minerals, Andrew is currently leading multiple disciplinary teams to deliver the Carrapateena Expansion Study.
Cristián Orrego
Principal Geotechnical Engineer, Newcrest Mining Limited
Cristian is a mining engineer with more than 14 years’ experience in rock mechanics in mining companies and as a consultant. He has worked on multiple mines and projects throughout South America, Australasia and Africa with a strong focus on numerical modelling as a tool for geohazard management and mine design optimisation in caving and open pit environments. He is currently working at Newcrest Mining as principal geotechnical engineer within the mining group in Melbourne, Australia, providing technical support, assurance, design and leadership on geotechnical numerical modelling across Newcrest studies, projects and operations.
Professor Yves Potvin
Professor of Mining Geomechanics, Australian Centre for Geomechanics
Yves joined the Australian Centre for Geomechanics at The University of Western Australia in 1998 and was centre director, 2000 – 2019. Professor Potvin has published more than 100 articles and is the editor/co-editor of 14 conference proceedings and books. He has over 30 years of experience in rock mechanics and mine design and has previously held managerial positions at Mount Isa Mines, the Noranda Technology Centre and worked as a mining engineer at Noranda Mines, Gaspe Division. Yves undertakes numerous collaborative industry-focused research projects and is presently involved with the ACG’s Ground Support Systems Optimisation Project, and the Stope Reconciliation and Optimisation Project. He currently participates in several geotechnical review boards.
Associate Professor Glenn Sharrock
General Manager – Principal Geotechnical Engineer, Itasca Australia Ltd
Dr Sharrock is general manager of Itasca Australia and has over 20 years of industry experience in a wide range of rock mechanics positions such as principal geotechnical engineer (Newcrest Mining NL), rock mechanics engineer (Mt Isa Mines), senior geotechnical consultant, (AMC Consultants), senior lecturer in geotechnical engineering (UNSW) and associate professor – caving geomechanics (UQ). His consulting, operational and research experience spans underground and surface mining in hard and soft rock environments.
Dr Jeremy Sofonia
Technical Evangelist, Emesent
Dr Jeremy Sofonia has been working on a wide variety of projects, all over the world, for the last 20 years with a specialisation in remote sensing applications and fieldwork in remote, dangerous and challenging environments. His PhD was focused on the utility of unmanned aerial vehicles (drones) in remote sensing. As the technical evangelist at Emesent, Dr. Jeremy Sofonia works with Hovermap customers and industry organisations to explore new use cases and promote technical excellence. He has completed hundreds of data capture missions across Africa and other mines around the world.
Andre Van As
Principal Engineer, Van As Geotechnical Pty Ltd
Andre is an underground mine geotechnical engineer that has spent most of his 30-year career working on caving operations and caving projects. Andre has worked on, or had significant involvement in, more than 10 major caving operations and projects, and sits on several cave mining geotechnical review boards. In 1997, he and Dr Rob Jeffrey introduced hydraulic fracturing into the cave mining industry as a means of cave induction and rock mass preconditioning at Northparkes Mines. As a result of their work, they were awarded a CSIRO medal. In 2018, Andre formed his own consultancy focused on providing technical expertise to the cave mining industry.
Sarah Webster
Study Leader, Life of Mine and Exploration, CMOC Mining Services Ltd
Sarah is a geomechanical engineer with more than 20 years of experience spent at open pit, stoping and caving operations.  Since 2016 Sarah has led the life of mine studies team at Northparkes to deliver the future cave and open pit projects for Northparkes.  Sarah has a master’s in mining geomechanics from Western Australian School of Mines and is studying a PhD at the Australian National University.
Associate Professor Johan Wesseloo
Director, Australian Centre for Geomechanics
Since obtaining a BEng (Civil) and MEng (Geotechnical) from The University of Pretoria, Johan has been involved in geotechnical engineering in open pit and underground environments throughout 14 countries. He commenced his career in 1998 as a geotechnical engineer at SRK Consulting in Johannesburg where his experience included open pit and underground projects in varying geotechnical conditions. In 2005 he was awarded a PhD (Geotechnical) from The University of Pretoria. Johan joined the ACG in 2007 as a research fellow. During his time at the ACG, Johan has been involved in research, the supervision of postgraduate students and geotechnical training. He also performs geotechnical and mining-induced seismicity reviews providing him with the valuable opportunity to visit numerous operations worldwide. Johan was instrumental in the development of the mXrap software and many of the software routines and apps available in that platform. Johan is a Fellow of The Australian Institute of Mining and Metallurgy and the Southern African Institute of Mining and Metallurgy. He was awarded the SAIMM Gold medal in 2006 and 2016, and the SAIMM Silver Medal in 2014. In May 2019, Johan was appointed centre director.
Dylan Whiteman
Head of Innovation & Technology, Elexon Mining
Dylan has been working in the mining industry for 15 years and has a deep interest in the science of rock mechanics, flow and stability. He was the system architect and project manager for the Cave Tracker and Smart Marker Systems at Elexon Mining. These systems allow the 3D tracking of in situ devices (beacons and markers) through solid and fragmented rock for the monitoring of cave propagation/mobilisation in block/panel caves and ring recovery monitoring in SLCs. The systems have been installed throughout the world and have in many instances provided the first in situ measurements of important caving phenomena.

 

This seminar commences at 7:45am WAST 14 June 2021. Check your local start time with the Time Zone Converter.

Professional Development Hours

Caving 2022 Symposium
Abstracts for the Fifth International Symposium on Block and Sublevel Caving are due 7 October 2021. Click here to learn more and submit your abstracts.

ACG Research Projects
Learn more about the ACG’s Physical and Numerical Modelling of Cave Propagation research project.

 

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