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Session 7D - Building resilient landforms Part 2

Life of Mine
Wednesday, July 30, 2025
1:10 PM - 2:20 PM

Speaker

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Mrs Louisa Nicolson
Lead Technical Advisor
Office of the Queensland Mine Rehabilitation Commissioner

The development of a Queensland approach for field-scale trials of mine waste cover system designs

1:10 PM - 1:25 PM

Abstract

Biography

Louisa Nicolson is Technical Lead in the Office of the Queensland Mine Rehabilitation Commissioner. She leads the OQMRC’s leading practice advice, preparation of technical papers and technical advice to the Minister for Environment. Louisa holds an MSc (UNE), BSc (CQU) and a Grad Dip (QUT).
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Dr Wenqiang Zhang
Postdoctoral Research Fellow
The University of Queensland

Assessment of coal spoil piles with respect to soil cover requirements at closure

1:25 PM - 1:40 PM

Abstract

Biography

Wenqiang Zhang is a postdoctoral research fellow at the Centre for Water in the Minerals Industry at the Sustainable Minerals Institute, The University of Queensland. Currently, he is working in the area of geochemistry and geohydrology of mine waste. He also works on a CRC TiME project, “Improved prediction, remediation and closure of acid and neutral metalliferous drainage (AMD/NMD) sites by examination of mine waste behaviour at the Meso-scale”. Wenqiang finished his PhD at the Geotechnical Engineering Centre, The University of Queensland, with a focus on weather-induced desiccation behaviours of subaerially-deposited tailings and salt migration in the soil cover system. He has developed expertise in laboratory experiments and field monitoring to investigate hydrological and geochemical processes in tailings deposition and rehabilitation. He is also a specialist in numerical modelling related to water, salt and heat transport in unsaturated soil/tailings.
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Dr Tim Rohde
Ceo
SGME Pty Limited

Geomorphic cover design for a tailings storage facility in New South Wales

1:40 PM - 1:55 PM

Abstract

Biography

Timothy is an environmental scientist and has been practicing for 23 years in the fields of soil science, geochemistry and mine closure. He is an experienced closure and rehabilitation specialist. Tim specialises in storage facility design, final landform design, cover design, geochemistry, decommissioning and closure cost estimation.
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Mr Pascal Saunier
Business Development Manager
AFITEX-Texel Geosynthetics

Feedback on the integrity of Multi-linear drainage geocomposites on final covers after 12 years

1:55 PM - 2:10 PM

Abstract

Biography

Pascal Saunier is a French-Canadian professional engineer. After having managed a municipal waste treatment facility for Veolia Environment in France, Pascal joins WSP in Canada in the containment design and QA/QC on geosynthetics field. He continues to develop his expertise in the geosynthetics industry with Texel-Geosol as Engineered Products Manager. He initiates the creation of AFITEX-TEXEL inc., the Canadian manufacturer of DRAINTUBE™ technology, where he takes the lead of the technical development for North America and after a while he becomes Business Development Manager for Canada, North America and Pacific. After almost 20 years of experience in the area of the geosynthetics, geotechnics and international business development in Europe and North America, he has published in his carrier numerous technical papers on geosynthetics, QA/QC on geosynthetics, waste management and mining. He’s a member of ‘’L’Ordre des Ingénieurs du Québec’’ (OIQ), the Association of P. Eng. of British Columbia as well as other related organizations as of ASTM D35.
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