Location
Chicago, Illinois
Date
02 May 2013, 4:00 pm - 6:00 pm
Abstract
The static and seismic safety evaluation of the 115 m high Koman concrete face rockfill dam, located at the Drin river in Albania has been checked according to the current state-of-practice for the seismic safety evaluation of large embankment dams. For the dynamic analyses with the equivalent linear method a two-dimensional model of the highest dam section was used. The static analysis was carried out by a Mohr-Coulomb elasto-plastic material model of the rockfill. The safety of the dam was checked for the safety evaluation earthquake (SEE) with a peak ground acceleration of the horizontal component of 0.45 g. Spectrum-compatible artificially generated accelerograms were used determined based on a site-specific seismic hazard analysis. The peak absolute horizontal crest acceleration due to the SEE excitation is about 0.78 g for average material properties, and about 1.16 g for the most unfavorable material properties. The maximum crest settlement resulting from the sliding displacements plus an additional settlement due to the vibration-induced densification of the dam body are calculated as 0.98 m, under the most unfavorable conditions.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
7th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2013 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
Fallah, Hamid and Wieland, Martin, "Koman Concrete Face Rockfill Dam Updating the Static and Seismic Evaluations" (2013). International Conference on Case Histories in Geotechnical Engineering. 57.
https://scholarsmine.mst.edu/icchge/7icchge/session03/57
Koman Concrete Face Rockfill Dam Updating the Static and Seismic Evaluations
Chicago, Illinois
The static and seismic safety evaluation of the 115 m high Koman concrete face rockfill dam, located at the Drin river in Albania has been checked according to the current state-of-practice for the seismic safety evaluation of large embankment dams. For the dynamic analyses with the equivalent linear method a two-dimensional model of the highest dam section was used. The static analysis was carried out by a Mohr-Coulomb elasto-plastic material model of the rockfill. The safety of the dam was checked for the safety evaluation earthquake (SEE) with a peak ground acceleration of the horizontal component of 0.45 g. Spectrum-compatible artificially generated accelerograms were used determined based on a site-specific seismic hazard analysis. The peak absolute horizontal crest acceleration due to the SEE excitation is about 0.78 g for average material properties, and about 1.16 g for the most unfavorable material properties. The maximum crest settlement resulting from the sliding displacements plus an additional settlement due to the vibration-induced densification of the dam body are calculated as 0.98 m, under the most unfavorable conditions.
