Abstract
A massive landslide of 210 m height occurred in year 2010 at Hunza River near Attabad village, about 100 km upstream of the confluence of Hunza River with Gilgit River. Keeping in view the high storage capacity of this landslide, overflow or piping can washout this landslide mass within a few hours, once the collapse start, with disastrous impacts downstream. Dam Break Analysis has been carried out, using hydrodynamic module of MIKE 11, to predict flood wave arrival time, peak discharge and wave height at Daniyor Bridge upstream of the confluence of River Hunza and River Gilgit. The water levels observed at Daniyor Bridge for years 2011 and 2012 are used for calibration and validation of the routing model, and the results are found to be very satisfactory. Sensitivity analysis is also performed on the model’s main input parameters and their effect on the peak outflow, flood wave arrival time and wave height are studied. The study incorporates computations under six different breach triggering and breach shape scenarios, which include trapezoidal and triangular breach shapes with failure due to either piping phenomenon or overtopping of the dam crest or user-defined breach of the dam. The results of the dam break analysis can be used for the preparation of an Emergency Action Plan for the affected area. The paper presents the details of the project, the model set up and details of the studies carried out.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Basco DR (1989) Limitation of de Saint Venant equations in dam-break analysis. J Hydraul Eng 115(7):950–965
Brutsaert W (1971) De Saint Venant Eq. experimentally verified. J Hydraul Eng 97(HY 9):1387–1401
Chow VT (1973) Open channel hydraulics. McGraw Hill Book Co., Chap. 20
Chow VT, Zvi AB (1973) Hydrodynamic Modelling of two-dimensional watershed flow. J Hydraul Div ASCE 99(HY11):2023–2039
Froehlich DC (1995) Peak outflow from breached embankment dam. J Water Resour Plann Manage 121(1):90–97
Gozali S, Hunt B (1993) Dam-break solution for a partial breach. J Hydraul Res 31(2):205–214
Hoeng K, Lovoll A, Vaskinn KA (2004) Stability and breaching of embankment dams: Field tests on 6 m high dams. Int J Hydropower Dams 11(1):88–92. http://www.mikebydhi.com
Hunt B (1982) Asymptotic solution for dam-break problem. J Hydraul Div ASCE 108(HY1):115–126
MacDonald TC, Langridge-Monopolis J (1984) Breaching characteristics of dam failures. J Hydraul Div ASCE 110(5):567–586
Ponce VM, Tsivoglon AJ (1981) Modelling gradual dam breaches. J Hydraul Div ASCE 107(HY7):829–838
Acknowledgements
Authors are highly thankful to Civil Engineering Department of University of Engineering and Technology Lahore for providing conducive environment for research, Danish Hydraulic Institute (DHI) for rendering the student package of Mike 11 and Surface Water Hydrology Project (SWHP) as well as National Engineering Services of Pakistan (Pvt.) Limited (NESPAK) for sharing the relevant data.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Mansoor, A., Khan, N.M., Akbar, A., Abbas, Y., Farooq, M.U. (2020). Quantification of Flood Hazards Due to Assumed Breaching of Attabad Landslide Dam, Pakistan. In: Kalinowska, M., Mrokowska, M., Rowiński, P. (eds) Recent Trends in Environmental Hydraulics. GeoPlanet: Earth and Planetary Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-37105-0_16
Download citation
DOI: https://doi.org/10.1007/978-3-030-37105-0_16
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-37104-3
Online ISBN: 978-3-030-37105-0
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)