Numerical simulation of Earthen Dams failure due to Overtopping (Case study: SILVEH Earthen Dam)

Yıl 2022, Cilt: 8 Sayı: 1, 26 - 35, 29.06.2022

Yaghma Shahanaghı

Öz

Dams break due to an earthquake, bombing, piping, overtopping, or some lack in design and construction process is unavoidable, which could lead to loss of life and property downstream of the dam. This study aims to understand of SILVEH dam break, under the scenario that considers the dam failure, due to overtopping and to prepare a hydrograph and flood zone downstream due to the failure of the SILVEH dam. In this research, obtaining and recognizing high-risk areas downstream of SILVEH Dam, due to dam break is another important goal. NAYS 2D FLOOD software has been used to simulate the failure of the SILVEH dam. SILVEH dam is an earthen dam, located in PIRANSHAHR city, in the West Azerbaijan Province. In the northern part of the study, immediately after the broken axis, the main flood flow dam in the valley is not very deep in the LAVIN River and due to the relatively steep slope, the water depth is not high and rarely rises from the river valley, but in the southern parts and reaching smoother areas are increases in the depth of flow. The maximum flood velocity is estimated at 20 meters per second and the lowest flood flow velocity is estimated at 2 meters per second. MAHABAD-PIRANSHAHR road and power transmission lines and bridges in the mentioned road will suffer the most damage from water floods due to the possibility of breaking the SILVEH dam.

Anahtar Kelimeler

Dam failure, Flood mapping, Overtopping, Earthen dam, NAYS 2D FLOOD

Kaynakça

• Bjerke, Ludvig P. Dam Break Analysis for Aparan Reservoir, Armenia. Norwegian Water Resources and Energy Directorate. (2011) Oslo, Norway.
• Changzhi, Li, Wang Hong, Chi Zhixue, Yang Yongfeng, Rao Zhengfu, and Cope Mike. "Dam break flood risk assessment for Laiyang City." Journal of Geological Resource and Engineering 4 (2014): 189-199. DOI:10.17265/2328-2193/2014.04.001
• Derdous, Oussama, Lakhdar Djemili, H. Bouchened, and Salah Eddine Tachi. "A GIS based approach for the prediction of the dam break flood hazard–A case study of Zardezas reservoir “Skikda, Algeria”." Journal of Water and Land Development 27 (2015): 15-20. DOI: 10.1515/jwld-2015-0020
• Hajeri, Sujaykumar S., A. V. Shivapur, and B. Venkatesh. "FLood plain mapping and dam break analysis for Neerasagar reservoir." International Research Journal of Engineering and Technology 3, no. 6 (2016): 1279-1285. e-ISSN: 2395-0056
• Hassanzadeh, Nourani, Sepehri, Dalafroozeh, Hassanzadeh M and Almaspour. "Wave analysis due to dam failure and flood plain zoning using a mathematical model (Case study: Venyar Dam) " Journal of Water and Soil 25, no 1 (2015):1-1. Huang, Yan. Appropriate modeling for integrated flood risk assessment. The Netherlands: University of Twente, 2005. ISBN 90-365-2251-X
• Jia, Yafei, Azad Hossain, and Xiaobo Chao. "Computational Modeling of Midwest Flood 2008: Levee Breaching and Flood Propagation." In World Environmental and Water Resources Congress 2010: Challenges of Change, pp. 1298-1303. 2010.
• Kumar, Sunil, Anil Jaswal, Ashish Pandey, and Nayan Sharma. "Literature review of dam break studies and inundation mapping using hydraulic models and GIS." International Research Journal of Engineering and Technology 4, no. 5 (2017): 55-61. e-ISSN: 2395 -0056
• Mohammadnejad, B.a.d.a, Ma Fatemi Kia, J, Behmanesh, M. Montaseri. "Numerical Simulation of Wave Emission Due to Dam Failure in Two-Dimensional Vertical." Journal of Civil and Environmental Engineering 3, no. 24 (2014): 59-47.
• QRA, Planning for stronger more resilient floodplains, Part 2: Measures to support floodplain management in future planning schemes. Operation Queenslander, ISBN: 978-0-9873118-4-9, (2011).
• Roos, I.W. "Damage to buildings. Intermediary report." Delf cluster publication, 2003.
• Roshandel, A., and N. Hedayat. "Simulation of dam break using finite volume method." International Journal of Structural and Construction Engineering 4, no. 11 (2010): 1406-1409. DOI: 10.5281/zenodo.1330701
• Singh, Jaswant, Mustafa S. Altinakar, and Yan Ding. "Two-dimensional numerical modeling of dam-break flows over natural terrain using a central explicit scheme." Advances in Water Resources 34, no. 10 (2011): 1366-1375. DOI: 10.1016/j.advwatres.2011.07.007
• U.S. Department of the Interior Bureau of Reclamation, Flood overtopping failure of dams, managing water in the west, (2017).
• Wahl, Tony L. "Prediction of embankment dam breach parameters." US Department of the Interior Bureau of Reclamation Dam Safety Office (1998).
• Zhang, Hou, Hassanzadeh Youssef, Nguyen Duc Long, and René Kahawita. "A 1-D numerical model applied to dam-break flows on dry beds." Journal of Hydraulic research 30, no. 2 (1992): 211-224. DOI: 10.1080/00221689209498935