Purdue Geotechnical Society (PGS)

The Purdue Geotechnical Society was founded in May 2003 to enhance the strong bond and working relationship among alumni, faculty, students, and staff.

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Please donate to our Geotech students at their student organization: Geo-Institute Graduate Student Organization- GIGSO! https://t.co/N17ugF03Mc
Thank you for your support! #Purdue #dayofgiving

[Purdue Engineering @PurdueEngineers]

🗓️ April 29 (2021)

Gerald A. “Jerry” Leonards (MSCE ’48, PhD CE ’52) – Trailblazer in soil mechanics and foundation engineering – was so beloved and respected that long after he died in 1997 at age 75, his 100th birthday was celebrated on this day at an event hosted by the Purdue Geotechnical Society. As a faculty member in Purdue's College of Engineering from 1952 to 1991, he gained recognition as a towering figure in geotechnical engineering. Throughout his career, Leonards' insight and expertise were sought for earthwork and foundation projects worldwide. He was the only "non-European" invited by the Italian government to sit on an official commission tasked with investigating methods to stabilize the "leaning" Tower of Pisa. His seminal book, Foundation Engineering, became a globally recognized reference in the field.

In 1980, Leonards was invited by the American Society of Civil Engineers (ASCE) to deliver its prestigious Terzaghi Lecture. His contributions were further recognized with his induction into the National Academy of Engineering in 1988, and receipt of ASCE's Karl Terzaghi Award in 1989 and Norman Medal in 1965.

Purdue Engineering Timeline: https://t.co/76LB7SaTYZ

#PurdueEngineering150 @PurdueCCE

[Marika Santagata @SantagataMarika]

This year’s @Purdue_PGS workshop ended with a superb 21st Leonards Lecture on "Engineering Frozen Ground"by Prof. Giulia Viggiani of @Cambridge_Uni and a celebration in our beautiful @PurdueEngineers building. #PGS2025

[Marika Santagata @SantagataMarika]

Group photo at the @Purdue_PGS workshop…. Looking forward to another great session this afternoon

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Prof. Giulia MB Viggiani starts her presentation for the 21st Leonards Lecture, ‘Engineering Frozen Ground: Understanding the behavior of soil on freezing and thawing.#PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Prof. Drnevich provides closing remarks to the 2025 PGS Workshop. #PGS2025.

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Closing the workshop, John Mundell, Mundell & Assoc., unveils ‘Unintended Consequences of Soil Freezing’ - gas leaks & explosions. #PGS2025.

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Mattias Lindenbauer, HDR, presents ‘2D & 3D Finite Element Freezing Behavior - frozen soil modeling. #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Oliver Hoopes, Shannon & Wilson, shares ‘Mitigating Slope Movement on Permafrost’ - Alaska Pipeline fix. #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Many thanks to our afternoon moderator. John Wysockey from Thatcher Foundations. #PGS2025.

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Nitin Tiwari, SIU, presents ‘Indigenous Bacteria -Driven Soil Stabilization’ - MCIP for clayey soils durability under freeze-thaw . #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Chris Woods, Densification Inc., presents ‘Dynamic Compaction’ - landfill site improvement. #PGS2025.

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

We are starting the afternoon session with Chadi El Mohtar, UT Austin, sharing ‘Exploring Grout Testing Limits & Oportunities’. #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Matt Evans, Oregon State, unveils ‘Bio-Cementation of Sands’ - bacteria strengthening loose soils. #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Tejas Murthy, IISc Bangalore, presents ‘Locked & Loaded’ - cementation via photoelasticity. #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Alessandro Rotta Loria, Northwestern University, shares ‘Coastal Ground Improvement via Electrodeposition’.

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

We are on the first break of the morning session. Thanks to our moderator Peter Becker from INDOT Div of Research & Development.

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Xiong Zhang, Missouri S&T, unveils ‘Wicking Geotextile to Dehydrate Road Embankments’ - pavement strength boost. #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Jim Hansen, Geosyntec, presents ‘Redeveloping Toronto’s Waterfront’ -cutoff walls & flood resilience. #PGS2025

[Purdue Geotechnical Society (PGS) @Purdue_PGS]

Darrin Beckett, Terracon, shares ‘US 421 Slope Stabilization on Pine Mountain’ - rock anchored wall stops a slide. #PGS2025