Strength Selection for Static Slope Stability Analysis: Download

This webinar will provide practical guidance on the selection of soil shear strength parameters for static slope stability analysis. Topics covered include:  stress-strain behaviors of cohesionless and cohesive soils and their relationships to strength selection; drained and undrained strengths and their application in stability analysis; the differences between effective stress and total stress analysis methods; loading cases for stability analysis and appropriate strength selection for each case; methods for selection of strength parameters from field and laboratory data.

John W. France, P.E., D.GE, D.WRE

President, JWF Consulting, LLC

John W. France, PE, D.GE, D.WRE is a registered professional engineer providing consulting services through JWF Consulting LLC. He received BS and MS degrees in civil engineering from Cornell University. John has more than 40 years of consulting engineering experience, during which time he has worked on hundreds of civil engineering projects. For the past 35 years his professional career has been focused on dam engineering and dam safety services. During his career, John has been involved in various capacities in evaluating and remediating seepage issues for earth dams. He has written numerous papers on the topic, and in 2012 he was an invited speaker at a FEMA workshop on filters and seepage remediation. He was engaged by the Montana Dam Safety office to prepare a technical note on chimney filter design for posting on the State’s website, and he has been an instructor for ASDSO’s seepage analysis course; ASDSO workshops on seepage rehabilitation and internal erosion failure modes; and U.S. Army Corps of Engineers’ courses on seepage rehabilitation and embankment dam design. John has participated as facilitator or subject matter expert on numerous risk analyses of internal erosion issues, most recently serving as facilitator for an internal erosion risk analysis for Mosul Dam in Iraq. In 2017, he was the leader of the Independent Forensic Team charged with identifying the causes of the February 2017 Oroville Dam spillway incident.

Christina J. Winckler, P.E.

Senior Geotechnical Engineer

Christina Winckler, PE is a senior geotechnical engineer at AECOM.  She has 13 years of experience in engineering consulting and design. The majority of her technical work is focused on material characterization, stability, seepage, and deformation analyses for earth embankment and tailings dams.  She provides engineering, investigation, analysis, design, and construction services to commercial and public clients on water resources, mining, and environmental projects.

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