FLOOD HAZARD ANALYSIS DUE TO OVERTOPPING OF DALAMAN AKKOPRU DAM: A CASE STUDY
INTERNATIONAL CONFERENCE ON HYDROSCIENCE & ENGINEERING, İzmir, Türkiye, 26 Mayıs - 27 Ekim 2022, ss.591-602, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: İzmir
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.591-602
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
A study was made to determine the hypothetical failure of the Dalaman Akköprü Dam by
overtopping failure mechanisms. For this purpose, a 2D Hydraulic Model was constructed using HEC-RAS to
determine the propagation of flood due to the failure of the dam body for this case. Froehlich equations were
used to predict breaching parameters of the Akköprü Dam. After the calibration of the hydraulic model, the
hydraulic model was run to determine the possible flooding of Ortaca, Dalaman, and Köyceğiz towns. Analysis
of the results obtained from the modeling in the case of overtopping failure of the Akköprü Dam showed that
the peak flood reaches to Ortaca and Dalaman towns in 2 hr 20 min 2 hr 50 min respectively and the significant
portion of the study area highly populated, is located in the H6 hazard zone. Due to the high risk of H6 and H5
Type hazard class, structural failure may occur, city centers should be evacuated within 2 hours.