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Seismic Remediation for Earth Dams

by William F. Marcuson, III, Dir.; Geotechnical Laboratory, U.S. Army Engineer Waterways Experiment Station, 3909 Halls Ferry Road (CEWES-GV-Z), Vicksburg, MS 39180-6199,
Paul F. Hadala, Assit. Dir.; U.S. Army Engineer Waterways Experiment Station, 3909 Halls Ferry Road (CEWES-GV-Z), Vicksburg, MS,
Richard H. Ledbetter, Research Civil Engineer; U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS,


Serial Information: Civil Engineering—ASCE, 1993, Vol. 63, Issue 12, Pg. 76-78


Document Type: Feature article

Abstract:

Over the last 30 years or so, new analysis methods and case histories of dam performance in earthquakes have significantly changed our understanding of the severity of the earthquake hazard in many regions. Existing dams, especially older ones, are being reexamined using more severe earthquakes than their original designers envisioned, with evaluation methods unavailable to them--leading, in some cases, to the determination that a seismic hazard exists. The article looks at the current state of the practice, performance of three dams shaken in the 1989 Loma Prieta Earthquake, and at two U.S. Army Corps of Engineers remediation projects now under way.

Subject Headings: Earthquakes | Seismic tests | Seismic effects | Mitigation and remediation | Geohazards | Case studies | Seismic design

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