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Maximising the value of exploration and infill characterisation work

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William Harding
Principal Consultant and Hydrogeologist at SRK Consulting (UK)
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About speakers

William Harding
Principal Consultant and Hydrogeologist at SRK Consulting (UK)
Michael Di Giovinazzo
Principal Mining Geotechnical Engineer at SRK Consulting (Finland)

William has almost 30 years of experience in hydrogeology. His particular strengths are in packer test and pumping test design and supervision, well test analysis, groundwater modelling and quantitative risk analysis. He has carried out well in excess of 100 projects for clients in the mining, water and waste management industries to support operations, technical studies for greenfield sites and closure. In recent years, he has been closely involved with and managed a number of open pit and underground mine hydrogeological studies in Europe, India, Africa and the Middle East. He has just completed a hydrogeological and geochemical modelling study for an underground gold mine in the Central Lapland Gold Belt (CLGB) and is currently managing a technical study to support a large open pit operation in Central Finland.

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Michael Di Giovinazzo is a Mining Geomechanics Engineer with over 18 years’ experience in hard rock underground and open pit mining operations and projects. After graduating with BSc in Applied Geology from Curtin University, the initial 2 years was with near-mine exploration for gold companies in Western Australia and West Africa. Michael transitioned to mining geomechanics attaining postgraduate qualification from the West Australia School of Mines (WASM). For over 10 years’ he held various geomechanics engineering roles for operating mining companies in Australia across underground and surface mining operations, operational geotechnical team leading, and feasibility studies. This experience incorporated various underground and surface mining methods including SLC, open stoping, deep open pits, managing cave-pit interaction, as well as providing geotechnical planning and guidance of numerous brownfields underground and open pit projects. Consulting experience with SRK’s Nordic offices in the last 8 years’ has been across various commodities, project stages and study levels mainly in the Nordic region, Europe, and Africa. Michael specialises in operations support, geotechnical risk management, geotechnical data collection programs, rock mass characterisation, underground mine design, open pit slope design, ground control monitoring and hazard management.

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About the talk

Maximising the value of exploration and infill characterisation work through the piggy-backing of hydrogeological and geotechnical field testing on resource drilling programmes

00:00

01:00 Why piggyback testing?

02:08 Traditional approach to resource drilling study

03:05 The benefits of early GW and GT data capture

04:43 Piggybacking

06:44 Designing an exploration program to accommodate piggyback testing

07:53 Methods successfully deployed on resource holes

11:47 Typical resource schedules with piggyback testing

13:00 Stages of geotechnical characterization

15:21 Elements of geotechnical characterization system

16:30 Project examples

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