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QUANTIFYING TAILINGS DAM RISKS - Shared screen with speaker view
Owner
32:55
Does increasing the dam capacity, years after initial construction, reduce the FoS
Christian Sauer (Hannover Re)
42:45
What is the average failure rate all all tailing dams ? 1:1000 years ?
Dubois
46:03
you perfectly illustrated the fact that geological recognition (karstification...) was crucial because it allowed the infrastructure to be properly sized. However, too many mining companies are unable to have this vision, sometimes for excellent reasons (in mergers and acquisitions, information is lost, for example). Assessing risk and financial stakes for insurers is therefore made impossible in many cases. The use of geophysics and drilling often raises many doubts. However, mining companies make very little use of it. Why?
Chris Zuberec
59:45
Determining probability of failure for investigation, design, construction, and O&M components is key in determining the aggregated probability of failure for the tailings management system (TMS). How were these probabilities of failure determined?
Chris Zuberec
01:03:37
How was the model backtested against actual failures and what type of correlation to probability failure/year was observed?
Mayu Tincopa
01:03:40
How much is the influence of site investigation in the risk assessment of dams? what is the weight of the site investigation as a KPI?
Andrea Zelman-Sofrova
01:04:14
Just wondering about the deliberations of the choice of using "KPI" over "KRI"?
FRUCSPH
01:04:54
do you foresee in the future an increase or decrease of probability of failure of TSFs, an increase/decrease of conséquences of Failure of TSFs or both?
Liliana Veru-Torres
01:05:43
Incredibly helpful!
Marco
01:05:44
Coul you explain a litle bit more about the Failure Modes as a desing tool?
Jeremy Perkins
01:06:06
Fantastic. Thanks
Livia Mello
01:06:41
So glad to see the societal consequences included in a meaningful manner!
Jaime Castro
01:06:51
Do you consider some type of MonteCarlo assessment / probabilistic analysis should be done on determining the FoS on the TSFs? And if yes should it be requested by the regulators? Is this a real way of considering geomechanical uncertainties?
Dr Kym Morton
01:07:16
Very important to measure and control water pressure- it is the only factor available , once a dam is established, that can be reduced and stability increased
Chris Zuberec
01:07:20
It is acknowleged that factor of safety does not address geotechnical uncertainty. Should it?
Peter Finateri
01:08:24
In your opinion, do most mining companies with TSF's use your quantitative and qualitative analysis methodology to better understand the probability of failure?
Raul Fuentes
01:11:35
Thanks for this good presentation
Owner
01:11:36
will a copy of the presentation be available after the presentation
Jeremy Perkins
01:12:54
Will engineers such as KP/SRK/BGC etc use your modelling in their reports?
Graham
01:19:28
Thank you very much. A great presentation and very interesting.
Ian Liu
01:19:48
Thank you so much! Such an informative session
Dubois
01:20:28
Many thanks. When is next session? ;)
Livia Mello
01:22:07
Yes, when is the next session? :)
Catherine Boudreau
01:22:37
Thank you very much! Great presentation!:)
Will Fremlin-Key
01:22:41
Very many thanks
MBond
01:22:43
Thanks Franco / James
Ivan Mel
01:22:43
thanks very helpful
luizguilherme
01:22:48
tahnk you Franco
Diego Sio
01:22:56
Thanks a lot!