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Seismic Stabilization of St. Joe State Park Tailings Dams

by Steven G. Vick, American Society of Civil Engineers, New York City, United States,
Robert Dorey, American Society of Civil Engineers, New York City, United States,
W. D. Liam Finn, American Society of Civil Engineers, New York City, United States,
Russell C. Adams, American Society of Civil Engineers, New York City, United States,



Document Type: Proceeding Paper

Part of: Geotechnical Practice in Dam Rehabilitation

Abstract:

Tailings dams constructed by the `upstream' method are known to be seismically vulnerable, but field experience indicates that their seismic stability usually improves following termination of active operation and abandonment. Analysis of one such inactive dam showed its seismic stability and deformations to be controlled by details of deposition and construction history. Tailings flow failure runout analyses were performed to determine downstream inundation potential, and risk-based methods were used to evaluate alternative seismic stabilization measures.

Subject Headings: Seismic tests | Mine wastes | Failure analysis | Seismic effects | Dams | Dam failures | Seismic design

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