Numerical simulation and analysis of a geological disaster chain in the Peilong valley, SE Tibetan Plateau
Abstract The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this s...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, Zhihai [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
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| Übergeordnetes Werk: |
Enthalten in: Bulletin of engineering geology and the environment - Springer Berlin Heidelberg, 1998, 80(2021), 4 vom: 27. Jan., Seite 3405-3422 |
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| Übergeordnetes Werk: |
volume:80 ; year:2021 ; number:4 ; day:27 ; month:01 ; pages:3405-3422 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10064-021-02109-5 |
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| Katalog-ID: |
OLC2124375644 |
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| 520 | |a Abstract The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this study, the topographical features and debris flow deposits in the Peilong valley were investigated in November 2018. It was found that the geological conditions in the valley are complex and numerous unstable sources are existed. Field investigations, laboratory tests, and a geomorphological analysis were conducted to obtain relevant data for the valley. And comparison of Landsat images indicates that the rate of change of the glacial area is 51.62% from winter to summer. Discrete element software (PFC3D) is used to simulate glacial landslides on the left bank. The simulation results show that a dam with a height of 141 m was formed, creating a lake. The debris flow after the dam break is simulated for different peak discharge values and durations based on a free surface shallow flow (SFLOW) model, with a final accumulation depth of 21.6 m. The comprehensive results of numerical simulation show that the chain of geological disasters induced by glacial landslide poses a huge threat to residents and roads near Peilong valley. Therefore, it is recommended to monitor the glacier activities in real time to enable forecasting of debris flows and reduce the property losses and prevent loss of life. | ||
| 650 | 4 | |a Glacier debris flow | |
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10.1007/s10064-021-02109-5 doi (DE-627)OLC2124375644 (DE-He213)s10064-021-02109-5-p DE-627 ger DE-627 rakwb eng 550 600 VZ Li, Zhihai verfasserin aut Numerical simulation and analysis of a geological disaster chain in the Peilong valley, SE Tibetan Plateau 2021 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this study, the topographical features and debris flow deposits in the Peilong valley were investigated in November 2018. It was found that the geological conditions in the valley are complex and numerous unstable sources are existed. Field investigations, laboratory tests, and a geomorphological analysis were conducted to obtain relevant data for the valley. And comparison of Landsat images indicates that the rate of change of the glacial area is 51.62% from winter to summer. Discrete element software (PFC3D) is used to simulate glacial landslides on the left bank. The simulation results show that a dam with a height of 141 m was formed, creating a lake. The debris flow after the dam break is simulated for different peak discharge values and durations based on a free surface shallow flow (SFLOW) model, with a final accumulation depth of 21.6 m. The comprehensive results of numerical simulation show that the chain of geological disasters induced by glacial landslide poses a huge threat to residents and roads near Peilong valley. Therefore, it is recommended to monitor the glacier activities in real time to enable forecasting of debris flows and reduce the property losses and prevent loss of life. Glacier debris flow Geological disaster chain Numerical simulation Peilong valley Zhou, Fujun aut Han, Xudong aut Chen, Jianping aut Li, Yuchao aut Zhai, Shijie aut Han, Mengxia aut Bao, Yiding aut Enthalten in Bulletin of engineering geology and the environment Springer Berlin Heidelberg, 1998 80(2021), 4 vom: 27. Jan., Seite 3405-3422 (DE-627)24891880X (DE-600)1444574-8 (DE-576)068745818 1435-9529 nnns volume:80 year:2021 number:4 day:27 month:01 pages:3405-3422 https://doi.org/10.1007/s10064-021-02109-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO AR 80 2021 4 27 01 3405-3422 |
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10.1007/s10064-021-02109-5 doi (DE-627)OLC2124375644 (DE-He213)s10064-021-02109-5-p DE-627 ger DE-627 rakwb eng 550 600 VZ Li, Zhihai verfasserin aut Numerical simulation and analysis of a geological disaster chain in the Peilong valley, SE Tibetan Plateau 2021 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this study, the topographical features and debris flow deposits in the Peilong valley were investigated in November 2018. It was found that the geological conditions in the valley are complex and numerous unstable sources are existed. Field investigations, laboratory tests, and a geomorphological analysis were conducted to obtain relevant data for the valley. And comparison of Landsat images indicates that the rate of change of the glacial area is 51.62% from winter to summer. Discrete element software (PFC3D) is used to simulate glacial landslides on the left bank. The simulation results show that a dam with a height of 141 m was formed, creating a lake. The debris flow after the dam break is simulated for different peak discharge values and durations based on a free surface shallow flow (SFLOW) model, with a final accumulation depth of 21.6 m. The comprehensive results of numerical simulation show that the chain of geological disasters induced by glacial landslide poses a huge threat to residents and roads near Peilong valley. Therefore, it is recommended to monitor the glacier activities in real time to enable forecasting of debris flows and reduce the property losses and prevent loss of life. Glacier debris flow Geological disaster chain Numerical simulation Peilong valley Zhou, Fujun aut Han, Xudong aut Chen, Jianping aut Li, Yuchao aut Zhai, Shijie aut Han, Mengxia aut Bao, Yiding aut Enthalten in Bulletin of engineering geology and the environment Springer Berlin Heidelberg, 1998 80(2021), 4 vom: 27. Jan., Seite 3405-3422 (DE-627)24891880X (DE-600)1444574-8 (DE-576)068745818 1435-9529 nnns volume:80 year:2021 number:4 day:27 month:01 pages:3405-3422 https://doi.org/10.1007/s10064-021-02109-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO AR 80 2021 4 27 01 3405-3422 |
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Numerical simulation and analysis of a geological disaster chain in the Peilong valley, SE Tibetan Plateau |
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Numerical simulation and analysis of a geological disaster chain in the Peilong valley, SE Tibetan Plateau |
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Li, Zhihai |
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Bulletin of engineering geology and the environment |
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Li, Zhihai Zhou, Fujun Han, Xudong Chen, Jianping Li, Yuchao Zhai, Shijie Han, Mengxia Bao, Yiding |
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numerical simulation and analysis of a geological disaster chain in the peilong valley, se tibetan plateau |
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Numerical simulation and analysis of a geological disaster chain in the Peilong valley, SE Tibetan Plateau |
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Abstract The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this study, the topographical features and debris flow deposits in the Peilong valley were investigated in November 2018. It was found that the geological conditions in the valley are complex and numerous unstable sources are existed. Field investigations, laboratory tests, and a geomorphological analysis were conducted to obtain relevant data for the valley. And comparison of Landsat images indicates that the rate of change of the glacial area is 51.62% from winter to summer. Discrete element software (PFC3D) is used to simulate glacial landslides on the left bank. The simulation results show that a dam with a height of 141 m was formed, creating a lake. The debris flow after the dam break is simulated for different peak discharge values and durations based on a free surface shallow flow (SFLOW) model, with a final accumulation depth of 21.6 m. The comprehensive results of numerical simulation show that the chain of geological disasters induced by glacial landslide poses a huge threat to residents and roads near Peilong valley. Therefore, it is recommended to monitor the glacier activities in real time to enable forecasting of debris flows and reduce the property losses and prevent loss of life. © Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
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Abstract The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this study, the topographical features and debris flow deposits in the Peilong valley were investigated in November 2018. It was found that the geological conditions in the valley are complex and numerous unstable sources are existed. Field investigations, laboratory tests, and a geomorphological analysis were conducted to obtain relevant data for the valley. And comparison of Landsat images indicates that the rate of change of the glacial area is 51.62% from winter to summer. Discrete element software (PFC3D) is used to simulate glacial landslides on the left bank. The simulation results show that a dam with a height of 141 m was formed, creating a lake. The debris flow after the dam break is simulated for different peak discharge values and durations based on a free surface shallow flow (SFLOW) model, with a final accumulation depth of 21.6 m. The comprehensive results of numerical simulation show that the chain of geological disasters induced by glacial landslide poses a huge threat to residents and roads near Peilong valley. Therefore, it is recommended to monitor the glacier activities in real time to enable forecasting of debris flows and reduce the property losses and prevent loss of life. © Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
| abstract_unstemmed |
Abstract The Yarlung Tsangpo river basin in the southeastern part of the Tibetan Plateau contains many maritime glaciers, where the massive debris flow formation caused by the glacial degradation leads to the issue of regional warming. It often forms a continuous geological disaster chain. In this study, the topographical features and debris flow deposits in the Peilong valley were investigated in November 2018. It was found that the geological conditions in the valley are complex and numerous unstable sources are existed. Field investigations, laboratory tests, and a geomorphological analysis were conducted to obtain relevant data for the valley. And comparison of Landsat images indicates that the rate of change of the glacial area is 51.62% from winter to summer. Discrete element software (PFC3D) is used to simulate glacial landslides on the left bank. The simulation results show that a dam with a height of 141 m was formed, creating a lake. The debris flow after the dam break is simulated for different peak discharge values and durations based on a free surface shallow flow (SFLOW) model, with a final accumulation depth of 21.6 m. The comprehensive results of numerical simulation show that the chain of geological disasters induced by glacial landslide poses a huge threat to residents and roads near Peilong valley. Therefore, it is recommended to monitor the glacier activities in real time to enable forecasting of debris flows and reduce the property losses and prevent loss of life. © Springer-Verlag GmbH Germany, part of Springer Nature 2021 |
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Numerical simulation and analysis of a geological disaster chain in the Peilong valley, SE Tibetan Plateau |
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