TECHNOLOGY •
3D MODELLING HAS MUCH TO
OFFER THE TSF FIELD
Edited by Sharyn Macnamara
The renewed global focus on the safety of tailings storage facilities ( TSFs ) has highlighted the value of 3D geological ground modelling , especially in enhancing the characterising of sites and effectively communicating subsurface site conditions .
All images supplied SRK Consulting
Delivering a paper at a recent seminar of the South African Institute for Engineering and Environmental Geologists ( SAIEG ), SRK Consulting senior engineering geologist Hennie Booyens emphasised that 3D models were “ not just pretty pictures .”
“ A visual representation of the site conditions can often be worth a thousand words ,” said Booyens . “ These models should in fact be considered as powerful data management tools , especially as they can be updated as and when new information becomes available .”
3D geological ground models offer enhanced visualisation capabilities .
He pointed to the importance attached to site characterisation by the Global Industry Standard on Tailings Management ( GISTM ) – not just during the various design stages but throughout the life cycle of the TSF . He said the engineering geologist plays a critical role in ensuring that adequate characterisation of the ground profile is conducted .
“ Our discipline ensures that all geological and geotechnical aspects are sufficiently addressed and presented , so
Hennie Booyens - SRK Consulting senior engineering geologist .
that design engineers have a thorough understanding of the site conditions ,” he explained .
Engineering geologists typically conduct various levels of geotechnical investigations , in line with the South African Institution of Civil Engineers ( SAICE ) Site Investigation Code of Practice . These investigations take place at different stages of a project life-cycle , from pre-feasibility through to post-construction and even remedial stages .
Engineering geologists play a critical role in ensuring that adequate site characterisation is conducted .
www . africanmining . co . za African Mining Publication African Mining African Mining • October 2023 • 19