Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China
The debris flows in the Taihang Mountain region in North China are basically triggered by rainstorms. Firstly, the debris flow susceptibility of the Shaling Gully, Lingshou County, Hebei Province, China was analyzed in this paper to evaluate its hazard and effect on the downstream proposed structure...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2023.1089510/full |
| _version_ | 1797905056101564416 |
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| author | Zhong Fu Wang Xu Sheng Zhang Xu Zhu Zhang Ming Tang Wu Bo Wu |
| author_facet | Zhong Fu Wang Xu Sheng Zhang Xu Zhu Zhang Ming Tang Wu Bo Wu |
| author_sort | Zhong Fu Wang |
| collection | DOAJ |
| description | The debris flows in the Taihang Mountain region in North China are basically triggered by rainstorms. Firstly, the debris flow susceptibility of the Shaling Gully, Lingshou County, Hebei Province, China was analyzed in this paper to evaluate its hazard and effect on the downstream proposed structures. Secondly, the maximum flow depth and velocity of the potential debris flow in Shaling Gully were numerically simulated based on the FLO-2D model, and the simulation results indicate that the flow depths under the 50-year and 100-year rainstorms will have some effect on the downstream proposed structures. With debris flow intensity classification, the hazard of potential debris flow in Shaling Gully was classified. According to the flow depths and velocities simulated by FLO-2D model, the ARCGIS10.8 software was adopted to optimize the hazard zones, and therefore the hazard zonation map was established. With consideration of simulation results under natural conditions and other factors such as gully feature, a 4 m high and 40 m wide retaining dam was designed. The numerical simulation results show that the retaining dam may decrease the debris flow hazard to a negligible level, which offers some beneficial reference to the subsequent engineering design for Shaling Gully. |
| first_indexed | 2024-04-10T09:59:01Z |
| format | Article |
| id | doaj.art-9a1cb289e5f844f9b9aa96230e2f794c |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-10T09:59:01Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-9a1cb289e5f844f9b9aa96230e2f794c2023-02-16T11:07:10ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-02-011110.3389/feart.2023.10895101089510Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, ChinaZhong Fu Wang0Xu Sheng Zhang1Xu Zhu Zhang2Ming Tang Wu3Bo Wu4North China University of Water Resources and Electric Power, Zhengzhou, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou, ChinaBeijing Engineering Corporation Limited, Beijing, ChinaHuadong Engineering Corporation Limited, Hangzhou, ChinaNorth China University of Water Resources and Electric Power, Zhengzhou, ChinaThe debris flows in the Taihang Mountain region in North China are basically triggered by rainstorms. Firstly, the debris flow susceptibility of the Shaling Gully, Lingshou County, Hebei Province, China was analyzed in this paper to evaluate its hazard and effect on the downstream proposed structures. Secondly, the maximum flow depth and velocity of the potential debris flow in Shaling Gully were numerically simulated based on the FLO-2D model, and the simulation results indicate that the flow depths under the 50-year and 100-year rainstorms will have some effect on the downstream proposed structures. With debris flow intensity classification, the hazard of potential debris flow in Shaling Gully was classified. According to the flow depths and velocities simulated by FLO-2D model, the ARCGIS10.8 software was adopted to optimize the hazard zones, and therefore the hazard zonation map was established. With consideration of simulation results under natural conditions and other factors such as gully feature, a 4 m high and 40 m wide retaining dam was designed. The numerical simulation results show that the retaining dam may decrease the debris flow hazard to a negligible level, which offers some beneficial reference to the subsequent engineering design for Shaling Gully.https://www.frontiersin.org/articles/10.3389/feart.2023.1089510/fullhazard of potential debris flowFLO-2DArcGISretaining damnumerical simulation |
| spellingShingle | Zhong Fu Wang Xu Sheng Zhang Xu Zhu Zhang Ming Tang Wu Bo Wu Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China Frontiers in Earth Science hazard of potential debris flow FLO-2D ArcGIS retaining dam numerical simulation |
| title | Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China |
| title_full | Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China |
| title_fullStr | Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China |
| title_full_unstemmed | Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China |
| title_short | Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China |
| title_sort | hazard assessment of potential debris flow a case study of shaling gully lingshou county hebei province china |
| topic | hazard of potential debris flow FLO-2D ArcGIS retaining dam numerical simulation |
| url | https://www.frontiersin.org/articles/10.3389/feart.2023.1089510/full |
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