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Workshop in Mining Geomechanical Risk: Open Pit Stream

12 April 2019 | Riverside Ballroom North | Novotel Perth Langley Hotel, Perth, Western Australia

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08:50Welcome and introduction Professor Phil Dight, Australian Centre for Geomechanics
09:00Geotechnical uncertainty and the management of open pit slope risk Michael Dunn, Evolution Mining Ltd
10:00Morning Break
10:30Dealing with slope creep David Gaudreau, Newmont Mining Corporation
11:00Coal mining in steeply dipping strata and managing risk Alex Duran, Pells Sullivan Meynink
11:30Risk-based design - a practical example Julian Venter, AngloGold Ashanti Limited
13:00Risk acceptance and management in challenging open pit mines Dr Felicia Weir, Pells Sullivan Meynink
13:30The great expectations of risk assessments Emrich Hamman, AngloGold Ashanti Australia Ltd
14:00Streamlined structural modelling for assessing and managing geotechnical hazards Richard Battison, St Barbara Limited, Australia
14:30How do you determine your risk profile? How do you calibrate your models? Professor Phil Dight
15:30Afternoon Break
17:00Workshop Close
Programme is subject to change


Workshop Facilitator:

Professor Phil Dight – Open Pit Stream Facilitator
Professor of Geotechnical Engineering
Australian Centre for Geomechanics

Phil has been involved with the development and design of ground support for mining applications since 1975. Phil joined the ACG in 2008 and has since been working on stress memory effects in rocks, ground support applications, slope stability problems (including the use of microseismicity to understand failure mechanisms), and 3D rock properties. In 2017, Phil commenced a four year MRIWA project aimed at investigating the issues of strainburst vulnerability in underground mines.

Presenters include:

Richard Battison

Senior Geotechnical Engineer
St Barbara

Richard Battison started his career working at the Cowal Gold Mine open pit in New South Wales after emigrating from the UK in 2012. During the four and a half years he spent at Cowal, Richard conducted a crest loss retention project which was published in the proceedings of Fragblast 11. He also oversaw and collated the geotechnical feasibility of the Stage H cutback. In early 2017 Richard moved into the underground mining space taking a job at Evolution Mining’s Mungari operations. This allowed him to gain a strong foundation in seismic risk management and ground support design. Currently, Richard is the Senior Geotechnical Engineer at St Barbara’s Gwalia Deeps underground gold mine located in Leonora, Western Australia.




Michael Dunn

Group Manager – Geotechnical
Evolution Mining Ltd

Michael has 25 years’ mining geotechnical engineering experience in operational, corporate and consulting roles. He has experience in South Africa, Australia, New Zealand, Indonesia, Ghana and the USA, covering a range of deep to near surface underground mining methods and small to large open pits. Michael has held several senior roles at AngloGold Ashanti, Newmont and SRK Consulting. In November 2015, he joined Evolution Mining as the Group Manager – Geotechnical and is responsible for providing geotechnical oversight and guidance for several underground and open pit operations and tailings storage facilities. Michael has a strong interest in the geotechnical design process, especially with respect to understanding geotechnical uncertainty and managing geotechnical risk. Michael is a Fellow and Chartered Professional of the AusIMM and has published 28 technical papers.

Alex Duran

Principal Geotechnical Engineer
Pells Sullivan Meynink

Presentation:Coal mining in steeply dipping strata and managing risk”

Alex is a principal with PSM. Alex has been actively engaged in providing geotechnical advice to the open cut mining industry for over 30 years and has worked on a diverse range of projects both within Australia and overseas. Within the last 10 years, focus has been on providing advice to the coal sector for both dragline and truck /shovel operations. Part of this experience has been with steeply dipping strata, uncommon to Australia, and has brought a raft of challenges in design the slopes and managing the risk.

David Gaudreau

Director Mining Newmont Australia
Newmont Mining Corporation

David has over two decades of mining, geotechnical and mine production management experience. He serviced sites and projects in Australia, Canada, Indonesia, China, Laos and India. He was involved in several projects spanning diverse geographical areas for surface and underground operations, ranging from conceptual studies to mine closure planning and execution. David has had leadership roles in mine operations management, geotechnical engineering, technical services management as well as consulting. He joined Newmont in September 2017 as Director Mining for the Australian region.

Julian Venter

Manager Geotechnical Engineering
AngloGold Ashanti Limited

Julian Venter graduated from the University of Pretoria (UP) in 2000 with a Bachelor’s degree in Civil Engineering. Subsequently he obtained Master’s degrees in Geotechnical Engineering from UP in 2004, a Graduate Diploma in Rock Mechanics from the University of the Witwatersrand in 2007 followed by an MBa and a Master’s degree in Mineral Economics from Curtin University in 2017. He started his working career with SRK Consulting in Johannesburg in 2002 where he gained a well-rounded geotechnical exposure to a variety of problems including open pit and underground mining and construction. For geotechnical risk work carried out at SRK he was co-recipient of the SAIMM Gold medal in 2007 and also co-recipient of the ARMA Award for Applied Rock Mechanics Research in 2009. In 2008 Julian and his family moved to Tom Price in Australia where he joined Rio Tinto’s Tom Price Iron Ore mine as Senior Geotechnical Engineer accountable for Tom Price and periodically Marandoo and Brockman 2 operations. After carrying out further roles in Rio Tinto in Mine Planning, Technical Services Superintendent at Tom Price, Technical Serves Superintendent at Brockman 2 and Geotechnical Superintendent for the East Pilbara, he left Rio Tinto in 2015 to join SRG Limited as National Manager Geotechnical Engineering. In 2016 Julian started with AngloGold Ashanti as Geotechnical Manager for the Continental Africa Region. A position he still holds. Throughout his career Julian has served on open pit design teams in roles including: contributor, technical lead, project manager, project director and third party reviewer for more than 200 open pits and cut backs. Based on this experience he has become a champion of rigorous data based design processes based on a proper understanding of risk.

Dr Felicia Weir

Pells Sullivan Meynink

Felicia Weir is a Principal Engineering Geologist of Pells Sullivan Meynink Pty Ltd, with over 12 years’ experience in her field. Felicia joined PSM after completing her PhD in Geomorphology. Felicia’s primary areas of practice include engineering geology, 3D geotechnical models and stability assessments for open cut mining.
Felicia enjoys a spectrum of projects from short life operations to large scale pits in complex risk settings. The development of accurate ground models and appropriate slope designs is her greatest pleasure. With recent work as Acting Geotechnical Superintendent at Ok Tedi Mine she has a good appreciation of the challenges faced in operations.
Felicia has worked on numerous major mining projects across Australia, Asia and Africa, including a number of large and technically challenging projects including Olympic Dam Open Pit Expansion, Ok Tedi operations and design in geothermal conditions at Lihir Gold Mine.