Dam-break flood simulation under various likely scenarios and mapping using GIS: Case of a proposed dam on River Yamuna, India
- 502 Downloads
The precision modeling of dam break floods can lead to formulation of proper emergency action plan to minimize flood impacts within the economic lifetime of the assets. Application of GIS techniques in integration with hydrological modeling for mapping of the flood inundated areas can play a momentous role in further minimizing the risk and likely damages. In the present study, dam break analysis using DAMBRK model was performed under various likely scenarios. Probable Maximum Flood (PMF) calculated for a return period of 1000 years using deterministic approach was adopted for dam break analysis of the proposed dam under various combinations of breach dimensions. The available downstream river cross-sections data sets were used as input in the model to generate the downstream flood profile. Dam break flow depths generated by the DAMBRK model under various combinations of structural failure are subsequently plotted on Digital Elevation Model (DEM) of the downstream of dam site to map the likely affected area. The simulation results reveals that in one particular case the flood without dam may be more intense if a rainfall of significant intensity takes place.
KeywordsDam break analysis DAMBRK GIS Flood mapping Hydropower India
Unable to display preview. Download preview PDF.
- BOSS DAMBRK (1991) User’s Manual. Comprehensive Environmental Impact Assessment and preparation of management plans for Vyasi hydroelectric project (2006) GBPIHED, Kosi-Katarmal, Almora, Uttarakhand (India).Google Scholar
- Husain SM, Rai NN (2000) One dimensional dam break flood analysis for Kameng hydro electric project, India. International seminar and workshop, Session 2: Mathematical and physical modeling to simulate a dam-break flood, Seinäjoki, Finland, 2–5 October 2000.Google Scholar
- Kho FWL, Law PL, et al. (2009) Quantitative dam break analysis on a reservoir earth dam. International Journal of Environmental Science and Technology 6(2): 203–210.Google Scholar
- Macchione F, Viggiani G (2004) Simple modeling of dam failure in a natural river. Journal of Water Management (ICE) WA 157(1): 53–60.Google Scholar
- Nayak PC, Sudheer KP, et al. (2004) Dam Break Analysis of Ghodahoda project using DAMBRK model. Journal of Applied Engineering Hydrology 17(1): 53–58.Google Scholar
- Revised DPR (2006) Revised Detailed Project Report of Lakhwar-Vyasi hydroelectric project, National Hydroelectric Power Corporation (NHPC) Ltd, India.Google Scholar
- Saikia MD, Sarma AK (2006) Analysis for adopting logical channel section for 1d dam break analysis in natural channels. ARPN Journal of Engineering and Applied Sciences 1(2): 46–54.Google Scholar
- Seker DZ, Kabdasli S, Rudvan B (2003) Risk assessment of a dam-break using GIS technology. Water Science & Technology 48(10): 89–95.Google Scholar
- Sarma AK (1999) A study of two-dimensional flow propagating from an opening in the river dike. PhD thesis, Gauhati University, Assam, India.Google Scholar
- Singh RD (2008) Real-time flood forecasting-Indian Experiences. In: Wheater, H. et al. (eds.), Hydrological modelling in Arid and Semi-Arid areas. Cambridge University Press, UK. pp 139–156.Google Scholar
- Wahl TL (1997) Predicting embankment dam breach parameters — A need Assessment. 27th IAHR Congress, San Francisco, California, August 10–15. (Online)Google Scholar