Next Article in Journal
Factors Affecting the Simultaneous Removal of Nitrate and Reactive Black 5 Dye via Hydrogen-Based Denitrification
Previous Article in Journal
Prediction of River Stage Using Multistep-Ahead Machine Learning Techniques for a Tidal River of Taiwan
Article

Modeling Flood Peak Discharge Caused by Overtopping Failure of a Landslide Dam

by 1,2, 1,2,3,*, 1,2, 1,2,3 and 1,2
1
Key Laboratory of Mountain Hazards and Surface Processes, CAS/Institute of Mountain Hazards and Environment, CAS, Chengdu 610041, China
2
University of Chinese Academy of Science, Beijing 100000, China
3
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China
*
Author to whom correspondence should be addressed.
Academic Editors: Francesco Fiorillo and Samuele Segoni
Water 2021, 13(7), 921; https://doi.org/10.3390/w13070921
Received: 2 March 2021 / Revised: 19 March 2021 / Accepted: 24 March 2021 / Published: 27 March 2021
(This article belongs to the Section Hydrology and Hydrogeology)
Overtopping failure often occurs in landslide dams, resulting in the formation of strong destructive floods. As an important hydraulic parameter to describe floods, the peak discharge often determines the downstream disaster degree. Based on 67 groups of landslide dam overtopping failure cases all over the world, this paper constructs the calculation model for peak discharge of landslide dam failure. The model considers the influence of dam erodibility, breach shape, dam shape and reservoir capacity on the peak discharge. Finally, the model is compared with the existing models. The results show that the new model has a higher accuracy than the existing models and the simulation accuracy of the two outburst peak discharges of Baige dammed lake in Jinsha River (10 October 2018 and 3 November 2018) is higher (the relative error is 0.73% and 6.68%, respectively), because the model in this study considers more parameters (the breach shape, the landslide dam erodibility) than the existing models. The research results can provide an important reference for formulating accurate and effective disaster prevention and mitigation measures for such disasters. View Full-Text
Keywords: peak discharge prediction; landslide dams; floods; overtopping failure; calculation model peak discharge prediction; landslide dams; floods; overtopping failure; calculation model
Show Figures

Figure 1

MDPI and ACS Style

Ruan, H.; Chen, H.; Wang, T.; Chen, J.; Li, H. Modeling Flood Peak Discharge Caused by Overtopping Failure of a Landslide Dam. Water 2021, 13, 921. https://doi.org/10.3390/w13070921

AMA Style

Ruan H, Chen H, Wang T, Chen J, Li H. Modeling Flood Peak Discharge Caused by Overtopping Failure of a Landslide Dam. Water. 2021; 13(7):921. https://doi.org/10.3390/w13070921

Chicago/Turabian Style

Ruan, Hechun; Chen, Huayong; Wang, Tao; Chen, Jiangang; Li, Huibin. 2021. "Modeling Flood Peak Discharge Caused by Overtopping Failure of a Landslide Dam" Water 13, no. 7: 921. https://doi.org/10.3390/w13070921

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop