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A description of the event from the host: 
What do you think the most challenging topic in Geotech and the surface mining industry is?
I think the piping phenomenon is one of the top enigmas since it’s very hard to diagnose the problem and predict its consequences clearly. Recent catastrophic failures of tailing dams in Canada and Brazil pulled huge attention from all around the world. Many reasons behind the dam failure were closely related to the internal erosion process or called piping in other words. The piping problems stem from suffusion which renders fine particle migration process in micro-scale of pore structure. Piping can be considered the continuing development of the suffusion process on a macro-scale, slowly being scaled up and moving from the downstream to upstream of the dam. Personally, I am interested in converting complex and abstract engineering problems into a crispy and hands-on model with quantifiable inputs and output. Many dam engineers might be frustrated with the current risk assessment of dam safety, subject to the inspector’s experiences and degree of understanding of dam failure mode. My reliability approach can be a good start point to understand how the input parameters are quantified and how the internal erosion risk can be quantified and ranked based on input parameters from field and lab investigation data. Hope to see you all in my upcoming online webinar.
 
Speakers Dr Sangho Lee
  • BS in Mining Engineering, MS in Environmental Geophysics, PhD in Civil Engineering from Purdue University, West Lafayette
  • 20-year professional engineering experiences in civil, mining and environmental industry
  • Online civil/mining class lecturer of In-GeoExpert (Europe) and EG-Science (S. America)
  • Published over 15 peer-review journal and international conference papers
  • ASCE G-I Risk Assessment and Management (RAM) committee member
  • Expertise in geosynthetic/granular filter design using probabilistic/reliability approach
  • Testing Supervisor at East Bay Municipal Utility District, California

DOI: SZsmEyjZZ8znQWmJVGgF_prepost_2

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