Available OnDemand

Understanding and preventing the tailings threat that can strike in seconds


Soil liquefaction has been the villain behind some major disasters. As recently as 2019, it was indicted in the catastrophic failure of the Brumadinho tailings dam in Brazil. It remains a threat for tailings generally, and is not always prompted by events such as earthquakes. Static liquefaction, where soil rapidly swaps from stable drained state to undrained flow state, can be triggered by more modest circumstances. Sometimes in just a few seconds…


However, understanding what gives rise to static liquefaction is a complex task involving many elements. Fortunately, the NorSand model, which can capture and compute all those aspects, is now available in PLAXIS.


In this webinar, we use 1974’s liquefaction slump at the Tar Island Dyke in Canada, as a case study to explore how design, soil types, changing demands, a leap in size of the tailings facility, and more all contributed to the collapse. We also take a look at how the NorSand model operates within PLAXIS.


Watch OnDemand

Webinar Presenters


Xing-Cheng Lin

Manager, User Success
Virtuosity, a Bentley Company

Xing-Cheng, is a User Success Manager in promoting the application of geotechnical solution(s) at different stages throughout the life-cycle of geotechnical projects.

Through the 10 years of service in Plaxis, he had been involved in technical support and expert service that helped the clients in validating and thus obtaining cost-effective designs while fulfilling the serviceability requirements by authority, through numerical impact assessment.

He was also a trainer from Plaxis Academy promoting the knowledge of FEM in geotechnical engineering in the Asia-pacific region.




Ja Mie How

Product Sales Engineer
Virtuosity, a Bentley Company

Ja Mie joined Bentley Systems in 2020 and is driven to grow Bentley Systems Geotechnical Analysis Solutions to various sectors in South-East Asia Region. Ja Mie has approximately 11 years of experience as a geotechnical engineer in infrastructure, buildings, oil & gas projects. 

Ja Mie’s role in Bentley as Product Sales Engineer focuses on helping professionals and engineering designers in the South-East Asia Region solve or improve the analysis and design of complex geotechnical engineering problems by adopting Bentley Geotechnical Analysis Solutions.