Location
San Diego, California
Presentation Date
28 May 2010, 9:30 am - 9:45 am
Abstract
Guidance for the Corps of Engineers requires the use of seismic deformation analysis in the evaluation of existing dams for seismic loads and in the validation of remediation design for seismically deficient embankment dams. The Corps uses a phased approach for evaluating the seismic safety. For dams with significant seismic loads, problem soils, high risk, or those where simple analyses identified seismic concerns, a more advanced deformation analysis is generally required. A major challenge in these analyses is the selection of a reliable constitutive model when liquefiable materials are present. The computer program FLAC, in conjunction with a modified version of the UBCSAND constitutive model, has been instrumental in determining the necessity of seismic retrofit at Corps’ embankment dams and in selecting effective remediation alternatives. The primary objective of this paper is to describe the current practice of the Corps in applying a phased analysis approach and to discuss selected considerations in performing these analyses.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Perlea, Vlad G. and Beaty, Michael H., "Corps of Engineers Practice in the Evaluation of Seismic Deformation of Embankment Dams" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 3.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session14/3
Included in
Corps of Engineers Practice in the Evaluation of Seismic Deformation of Embankment Dams
San Diego, California
Guidance for the Corps of Engineers requires the use of seismic deformation analysis in the evaluation of existing dams for seismic loads and in the validation of remediation design for seismically deficient embankment dams. The Corps uses a phased approach for evaluating the seismic safety. For dams with significant seismic loads, problem soils, high risk, or those where simple analyses identified seismic concerns, a more advanced deformation analysis is generally required. A major challenge in these analyses is the selection of a reliable constitutive model when liquefiable materials are present. The computer program FLAC, in conjunction with a modified version of the UBCSAND constitutive model, has been instrumental in determining the necessity of seismic retrofit at Corps’ embankment dams and in selecting effective remediation alternatives. The primary objective of this paper is to describe the current practice of the Corps in applying a phased analysis approach and to discuss selected considerations in performing these analyses.
