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| Titel |
Total risk analyses for large dams in Kizilirmak basin, Turkey |
| VerfasserIn |
H. Tosun, E. Seyrek |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 5 ; Nr. 10, no. 5 (2010-05-07), S.979-987 |
| Datensatznummer |
250008148
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| Publikation (Nr.) |
 copernicus.org/nhess-10-979-2010.pdf |
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| Zusammenfassung |
| Dams located near urban areas have a high risk potential for life and
property in downstream. Turkey is one of the most seismically active regions
in the world and has at least 1200 large dams with different type. Major
earthquakes with the potential of threatening life and property occur
frequently here. Kizilirmak basin studied in this article is located in a
seismically very active part of Turkey. The northern part of basin is
structurally cut by a significant fault system. The shear zone, which is
frequently jointed, fractured and faulted at the central part of basin
increases total risk of dams within the zone. Consequently, there are so many
large dams, which are located close to these faults in the basin. In this
paper authors summarize the methods used for the analysis of total risk,
discuss the seismic hazards of 36 large dams constructed in the Kizilirmak
basin on the basis of the seismic activity of the dam site and their total
risk as based on physical properties and the position in the basin. The
seismic hazard analyses have indicated that peak ground acceleration changes
within a wide range (0.09 g and 0.45 g) for the dam sites of basin. The
total risk analyses depending on the seismic hazard rating of dam site and
risk rating of the structure have concluded that 23 large dams have high-risk
class in the basin. |
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