Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions

Shi Zhen Ming; Hou Zhuo Lin; Zhang Qing Zhao; Zhu Chun An; Qin Hao

doi:doi:10.11648/j.sd.20210906.11

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Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions

Shi Zhen Ming, Hou Zhuo Lin, Zhang Qing Zhao, Zhu Chun An, Qin Hao

Published in Science Discovery (Volume 9, Issue 6)

Received: 14 October 2021 Accepted: 5 November 2021 Published: 12 November 2021

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Abstract

Landslide dam is a natural dam body formed by collapse, landslide and debris flow. The flood caused by dam break will cause significant risk to the downstream of the dam. Under the effect of rainfall environment, the erosion and deposition rate of flood and sediment in the downstream of the dam will be affected. This paper takes Tangjiashan dam as the research object, establishes the digital elevation model of the downstream channel according to the field survey and geological data, establishes the two-dimensional unsteady hydrodynamic model with the help of MIKE 21, explores the material movement law of the dam break flood in the downstream channel, and analyzes the influence of rainfall on the distribution of sediment deposition rate and sediment transport rate in the dam break flood The variation of riverbed thickness and the influence of flood sediment concentration rate. Based on the rainfall of dam break flood, this paper studies the sediment erosion and deposition law of dam break flood under different rainfall conditions. The results show that the occurrence of rainfall can significantly increase the sediment holding capacity of dam break flood. Under different rainfall intensities; The sediment deposition rate in floods will be affected by rainfall. The sediment deposition rate under the condition of rainfall is higher than that under the condition of no rainfall; Increasing rainfall intensity will increase the sedimentation thickness of the river bed near the collapse of the Tangjiashan dam, such as the collapse of the Shuimogou ditch. Based on the relevant research conclusions under different rainfall conditions, this paper could provide significant theoretical guidance for the flood erosion law of dam breaks and downstream rescue work.

Published in	Science Discovery (Volume 9, Issue 6)
DOI	10.11648/j.sd.20210906.11
Page(s)	269-282
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Landslide Dam, Dam Break, Rainfall, Sediment Erosion and Deposition, Numerical Simulation

References

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[12]	周兴波,陈祖煜,陈淑婧,等.基于MIKE11的堰塞坝溃决过程数值模拟[J].安全与环境学报,2014,14(6): 23-27。
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APA Style

Shi Zhen Ming, Hou Zhuo Lin, Zhang Qing Zhao, Zhu Chun An, Qin Hao. (2021). Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions. Science Discovery, 9(6), 269-282. https://doi.org/10.11648/j.sd.20210906.11

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ACS Style

Shi Zhen Ming; Hou Zhuo Lin; Zhang Qing Zhao; Zhu Chun An; Qin Hao. Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions. Sci. Discov. 2021, 9(6), 269-282. doi: 10.11648/j.sd.20210906.11

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AMA Style

Shi Zhen Ming, Hou Zhuo Lin, Zhang Qing Zhao, Zhu Chun An, Qin Hao. Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions. Sci Discov. 2021;9(6):269-282. doi: 10.11648/j.sd.20210906.11

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@article{10.11648/j.sd.20210906.11,
  author = {Shi Zhen Ming and Hou Zhuo Lin and Zhang Qing Zhao and Zhu Chun An and Qin Hao},
  title = {Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions},
  journal = {Science Discovery},
  volume = {9},
  number = {6},
  pages = {269-282},
  doi = {10.11648/j.sd.20210906.11},
  url = {https://doi.org/10.11648/j.sd.20210906.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210906.11},
  abstract = {Landslide dam is a natural dam body formed by collapse, landslide and debris flow. The flood caused by dam break will cause significant risk to the downstream of the dam. Under the effect of rainfall environment, the erosion and deposition rate of flood and sediment in the downstream of the dam will be affected. This paper takes Tangjiashan dam as the research object, establishes the digital elevation model of the downstream channel according to the field survey and geological data, establishes the two-dimensional unsteady hydrodynamic model with the help of MIKE 21, explores the material movement law of the dam break flood in the downstream channel, and analyzes the influence of rainfall on the distribution of sediment deposition rate and sediment transport rate in the dam break flood The variation of riverbed thickness and the influence of flood sediment concentration rate. Based on the rainfall of dam break flood, this paper studies the sediment erosion and deposition law of dam break flood under different rainfall conditions. The results show that the occurrence of rainfall can significantly increase the sediment holding capacity of dam break flood. Under different rainfall intensities; The sediment deposition rate in floods will be affected by rainfall. The sediment deposition rate under the condition of rainfall is higher than that under the condition of no rainfall; Increasing rainfall intensity will increase the sedimentation thickness of the river bed near the collapse of the Tangjiashan dam, such as the collapse of the Shuimogou ditch. Based on the relevant research conclusions under different rainfall conditions, this paper could provide significant theoretical guidance for the flood erosion law of dam breaks and downstream rescue work.},
 year = {2021}
}

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TY  - JOUR
T1  - Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions
AU  - Shi Zhen Ming
AU  - Hou Zhuo Lin
AU  - Zhang Qing Zhao
AU  - Zhu Chun An
AU  - Qin Hao
Y1  - 2021/11/12
PY  - 2021
N1  - https://doi.org/10.11648/j.sd.20210906.11
DO  - 10.11648/j.sd.20210906.11
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 269
EP  - 282
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20210906.11
AB  - Landslide dam is a natural dam body formed by collapse, landslide and debris flow. The flood caused by dam break will cause significant risk to the downstream of the dam. Under the effect of rainfall environment, the erosion and deposition rate of flood and sediment in the downstream of the dam will be affected. This paper takes Tangjiashan dam as the research object, establishes the digital elevation model of the downstream channel according to the field survey and geological data, establishes the two-dimensional unsteady hydrodynamic model with the help of MIKE 21, explores the material movement law of the dam break flood in the downstream channel, and analyzes the influence of rainfall on the distribution of sediment deposition rate and sediment transport rate in the dam break flood The variation of riverbed thickness and the influence of flood sediment concentration rate. Based on the rainfall of dam break flood, this paper studies the sediment erosion and deposition law of dam break flood under different rainfall conditions. The results show that the occurrence of rainfall can significantly increase the sediment holding capacity of dam break flood. Under different rainfall intensities; The sediment deposition rate in floods will be affected by rainfall. The sediment deposition rate under the condition of rainfall is higher than that under the condition of no rainfall; Increasing rainfall intensity will increase the sedimentation thickness of the river bed near the collapse of the Tangjiashan dam, such as the collapse of the Shuimogou ditch. Based on the relevant research conclusions under different rainfall conditions, this paper could provide significant theoretical guidance for the flood erosion law of dam breaks and downstream rescue work.
VL  - 9
IS  - 6
ER  -

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Author Information

Shi Zhen Ming

Department of Geotechnical Engineering, Tongji University, Shanghai, China
Hou Zhuo Lin

Department of Geotechnical Engineering, Tongji University, Shanghai, China
Zhang Qing Zhao

Department of Geotechnical Engineering, Tongji University, Shanghai, China
Zhu Chun An

Department of Geotechnical Engineering, Tongji University, Shanghai, China
Qin Hao

Shanghai Tongji Engineering Consulting Co, Shanghai, China

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APA Style

Shi Zhen Ming, Hou Zhuo Lin, Zhang Qing Zhao, Zhu Chun An, Qin Hao. (2021). Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions. Science Discovery, 9(6), 269-282. https://doi.org/10.11648/j.sd.20210906.11

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ACS Style

Shi Zhen Ming; Hou Zhuo Lin; Zhang Qing Zhao; Zhu Chun An; Qin Hao. Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions. Sci. Discov. 2021, 9(6), 269-282. doi: 10.11648/j.sd.20210906.11

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AMA Style

Shi Zhen Ming, Hou Zhuo Lin, Zhang Qing Zhao, Zhu Chun An, Qin Hao. Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions. Sci Discov. 2021;9(6):269-282. doi: 10.11648/j.sd.20210906.11

Copy | Download

@article{10.11648/j.sd.20210906.11,
  author = {Shi Zhen Ming and Hou Zhuo Lin and Zhang Qing Zhao and Zhu Chun An and Qin Hao},
  title = {Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions},
  journal = {Science Discovery},
  volume = {9},
  number = {6},
  pages = {269-282},
  doi = {10.11648/j.sd.20210906.11},
  url = {https://doi.org/10.11648/j.sd.20210906.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210906.11},
  abstract = {Landslide dam is a natural dam body formed by collapse, landslide and debris flow. The flood caused by dam break will cause significant risk to the downstream of the dam. Under the effect of rainfall environment, the erosion and deposition rate of flood and sediment in the downstream of the dam will be affected. This paper takes Tangjiashan dam as the research object, establishes the digital elevation model of the downstream channel according to the field survey and geological data, establishes the two-dimensional unsteady hydrodynamic model with the help of MIKE 21, explores the material movement law of the dam break flood in the downstream channel, and analyzes the influence of rainfall on the distribution of sediment deposition rate and sediment transport rate in the dam break flood The variation of riverbed thickness and the influence of flood sediment concentration rate. Based on the rainfall of dam break flood, this paper studies the sediment erosion and deposition law of dam break flood under different rainfall conditions. The results show that the occurrence of rainfall can significantly increase the sediment holding capacity of dam break flood. Under different rainfall intensities; The sediment deposition rate in floods will be affected by rainfall. The sediment deposition rate under the condition of rainfall is higher than that under the condition of no rainfall; Increasing rainfall intensity will increase the sedimentation thickness of the river bed near the collapse of the Tangjiashan dam, such as the collapse of the Shuimogou ditch. Based on the relevant research conclusions under different rainfall conditions, this paper could provide significant theoretical guidance for the flood erosion law of dam breaks and downstream rescue work.},
 year = {2021}
}

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TY  - JOUR
T1  - Numerical Simulation of Dam-Break Flood Routing and Sediment Erosion and Deposition Under Different Rainfall Conditions
AU  - Shi Zhen Ming
AU  - Hou Zhuo Lin
AU  - Zhang Qing Zhao
AU  - Zhu Chun An
AU  - Qin Hao
Y1  - 2021/11/12
PY  - 2021
N1  - https://doi.org/10.11648/j.sd.20210906.11
DO  - 10.11648/j.sd.20210906.11
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 269
EP  - 282
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20210906.11
AB  - Landslide dam is a natural dam body formed by collapse, landslide and debris flow. The flood caused by dam break will cause significant risk to the downstream of the dam. Under the effect of rainfall environment, the erosion and deposition rate of flood and sediment in the downstream of the dam will be affected. This paper takes Tangjiashan dam as the research object, establishes the digital elevation model of the downstream channel according to the field survey and geological data, establishes the two-dimensional unsteady hydrodynamic model with the help of MIKE 21, explores the material movement law of the dam break flood in the downstream channel, and analyzes the influence of rainfall on the distribution of sediment deposition rate and sediment transport rate in the dam break flood The variation of riverbed thickness and the influence of flood sediment concentration rate. Based on the rainfall of dam break flood, this paper studies the sediment erosion and deposition law of dam break flood under different rainfall conditions. The results show that the occurrence of rainfall can significantly increase the sediment holding capacity of dam break flood. Under different rainfall intensities; The sediment deposition rate in floods will be affected by rainfall. The sediment deposition rate under the condition of rainfall is higher than that under the condition of no rainfall; Increasing rainfall intensity will increase the sedimentation thickness of the river bed near the collapse of the Tangjiashan dam, such as the collapse of the Shuimogou ditch. Based on the relevant research conclusions under different rainfall conditions, this paper could provide significant theoretical guidance for the flood erosion law of dam breaks and downstream rescue work.
VL  - 9
IS  - 6
ER  -

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