Experimental investigation of breaching process of moraine dam with different breach-section shapes

Lu, Jinzhi; Guo, Xinlei; Fu, Hui; Wu, Yihong; Mao, Zeyu

doi:10.1007/s12665-024-11510-8

Environ Earth Sci

2024

DOI: 10.1007/s12665-024-11510-8

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Experimental investigation of breaching process of moraine dam with different breach-section shapes

Jinzhi Lu,

Xinlei Guo,

Hui Fu

et al.

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Study of Flooding Behavior and Discharge from Karot Dam in the Event of a Possible Breach by Using the Hydrodynamic Model

Momburi,

Li,

Masami

et al. 2024

Water

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This study utilizes the MIKE 11 hydrodynamic model developed by the Danish Hydraulic Institute to simulate flood behavior downstream of Karot Dam under multi-year in-flow conditions. The key parameters analyzed include breach characteristics, flood duration, water depth, flow velocity, discharge rate, and downstream distance. After dam failure, the peak discharge reaches 33,171 m3/s, exceeding the 10,000-year recurrence peak flow of 32,300 m3/s, with a breach duration of 2 h. The estimated peak discharge after simulation using empirical equations and comparative analyses showed maximum flood discharges of 28,187 m3/s, 28,922 m3/s, and 29,769 m3/s, with breach widths of 181 m, 256 m, and 331 m, respectively. The peak discharge predicted to reach the outlet with travel time ranging from 4 h 25 min to 4 h 40 min. Under multi-year average inflow conditions, Mangla Dam faces no risk of failure, with a maximum outflow of 12,097 m3/s and a spillway capacity of 30,147 m3/s. The model accurately predicted discharge values, with a strong correlation coefficient of R2 = 0.9653, indicating strong agreement between the actual water level data and predicted discharge. These insights are essential for developing effective emergency response strategies to mitigate the risks associated with dam failure.

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Study of Flooding Behavior and Discharge from Karot Dam in the Event of a Possible Breach by Using the Hydrodynamic Model

Momburi,

Li,

Masami

et al. 2024

Water

View full text Add to dashboard Cite

show abstract

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Experimental investigation of breaching process of moraine dam with different breach-section shapes

Cited by 1 publication

References 48 publications

Study of Flooding Behavior and Discharge from Karot Dam in the Event of a Possible Breach by Using the Hydrodynamic Model

Study of Flooding Behavior and Discharge from Karot Dam in the Event of a Possible Breach by Using the Hydrodynamic Model

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