Delwyn G. Fredlund

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Delwyn G. Fredlund (* 1940 in Norquay , Saskatchewan ) is a Canadian civil engineer specializing in geotechnical engineering .

Fredlund studied civil engineering at the University of Saskatchewan (Bachelor 1962) and at the University of Alberta , where he obtained his master’s degree in geotechnical engineering in 1964 (Comparison of Soil Suction and one dimensional consolidation characteristics of highly plastic clay) and received his doctorate in 1973 (Volume change behavior of unsaturated soils) . In 1966 he became an assistant professor and from 1976 he was a full professor at the University of Saskatchewan. From 1989 to 1995 he headed the Faculty of Civil Engineering there. He was visiting professor at the University of Texas at Austin (1977/78) and Colorado State University (1984/85), where he is also an adjunct professor.

He is known for investigations into unsaturated soils (i.e. with different degrees of saturation of the pore water), a previously neglected area of ​​soil mechanics. In particular, he dealt with the cohesive soils that are widespread in the prairie areas of America and that swell in the case of water uptake, for example during seasonal rainfall, after he had been involved with the foundation problems associated with the Canadian building research authority in the early 1960s. They are a common cause of foundation damage in North America, but also in many arid and savannah regions of the world. He advised worldwide on geotechnical questions, for example in Hong Kong, China, Kenya, Vietnam, for the US Army Corps of Engineers and the road construction authorities in Saskatchewan. Fredlund is the founder of Unsaturated Soil Technology.

In addition to unsaturated soils, he focuses on slope stability. He also wrote commercial software in this field and founded Geo-Slope Programming in 1977.

In 2005 he was a Terzaghi Lecturer . In 1993 he became a Fellow of the Engineering Institute of Canada and is Associate Editor of the Canadian Geotechnical Journal. In 1997 he chaired the Geotechnical Research Board of Canada. In 1998 he received the RF Legget Award from the Canadian Geotechnical Society. He chaired the Expansive Soils Committee of the Canadian Geotechnical Society and the International Society for Soil Mechanics and Foundation Engineering . In 1994 he received the Association of Professional Engineers of Saskatchewan's Distinguished Service Award.

He is married and has four kids.

Fonts

  • with H. Rahardjo: Soil Mechanics of unsaturated soils, Wiley 1993

Web links

Individual evidence

  1. ↑ Similarly, they shrink when they dry out
  2. ↑ Homepage of Unsaturated Soil Technology
personal data
SURNAME Fredlund, Delwyn G.
BRIEF DESCRIPTION Canadian geotechnician
DATE OF BIRTH 1940
PLACE OF BIRTH Norquay , Saskatchewan , Canada