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Memorial Tributes Volume 20 (2016) / Chapter Skim
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CHARLES C. LADD
Pages 162-165

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From page 163...
... Professor b Ladd was renowned as a gifted teacher (with a style emulated by many former students who became faculty members) and innovative researcher on advanced technical topics in geo­ technical engineering, particularly the engineering properties of soft clays.
From page 164...
... One of his most important contributions was the development of SHANSEP, an acronym for stress history and normalized soil engineering properties, which is widely used for evaluating the undrained stability of construction on and in soft clays. This work grew out of a consulting project in Japan in 1960 involving oil storage tanks constructed on deep soft soils and evolved into 50 years of research and practice with major contributions on the effects of anisotropy, sample disturbance, and strain rate on stress-strain-strength behavior of clay soils.
From page 165...
... Up until his hospitalization on August 1, he had been spending much of his time happily working on a book on soil behavior and a challenging soft clay embankment stability problem for a proposed new airport in Mexico City. He was a devoted husband of 55 years to the late Carol Ballou Ladd, who died in 2009.


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