Calgary Geotechnical Society

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Welcome to the official website for the Calgary Geotechnical Society.

The Calgary Geotechnical Society (CyGS) is a local section of the Canadian Geotechnical Society (CGS). It provides opportunities for continuing professional development for geotechnical engineers/engineering geologists in the Calgary area. We host lectures by local, national and international speakers roughly monthly from September through May every year. Our current list of events is here.

The society relies on volunteers to help organize and put on the events, and sponsorship from local geotechnical companies and support from the national CGS. If you are interested in helping on the committee, if you have ideas for speakers or topics, or if your company would like to help sponsor the society or a specific event, please talk to one of the committee or contact us at

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New Events

CyGS December Virtual Student/EIT Presentation
Speaker: Dr. Yadong Zhang, Ph. D.

Topic: “Preconsolidation pressure and undrained shear strength of compacted silty sand”

Date: Dec 15, 2021 4:00 PM Mountain Time (US and Canada)

Registration: Click Here

A presentation hosted by the Calgary Geotechnical Society

Previous Events

Topic: “Numerical analysis of the Brumadinho Tailings Dam Failure”

Speaker: Marcos Arroyo, Ph.D.

Date: Nov 24, 2021 10:00 AM Mountain Time (US and Canada)

Topic: “Analysis of Static Liquefaction with Plaxis: 1974 Tar Island Slump”

Speaker: Mike Jefferies, P.Eng.

Date: Nov 17, 2021 12:00 PM Mountain Time (US and Canada)

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