Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulation
ABSTRACT: Xinqiao Gully is located in the area of the 2008 Wenchuan Ms 8.0 earthquake in Sichuan province, China. Based on the investigation of the 2023 “6-26” Xinqiao Gully debris flow event, this study assessed the effectiveness of the debris flow control project and evaluated the debris flow haza...
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| Format: | Article |
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KeAi Communications Co., Ltd.
2024-04-01
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| Series: | China Geology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096519224001071 |
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| author | Chang Yang Yong-bo Tie Xian-zheng Zhang Yan-feng Zhang Zhi-jie Ning Zong-liang Li |
| author_facet | Chang Yang Yong-bo Tie Xian-zheng Zhang Yan-feng Zhang Zhi-jie Ning Zong-liang Li |
| author_sort | Chang Yang |
| collection | DOAJ |
| description | ABSTRACT: Xinqiao Gully is located in the area of the 2008 Wenchuan Ms 8.0 earthquake in Sichuan province, China. Based on the investigation of the 2023 “6-26” Xinqiao Gully debris flow event, this study assessed the effectiveness of the debris flow control project and evaluated the debris flow hazards. Through field investigation and numerical simulation methods, the indicators of flow intensity reduction rate and storage capacity fullness were proposed to quantify the effectiveness of the engineering measures in the debris flow event. The simulation results show that the debris flow control project reduced the flow intensity by 41.05% to 64.61%. The storage capacity of the dam decreases gradually from upstream to the mouth of the gully, thus effectively intercepting and controlling the debris flow. By evaluating the debris flow of different recurrence intervals, further measures are recommended for managing debris flow events. |
| format | Article |
| id | doaj-art-dd8a4655e9b441a9a9e5538ee51d03e5 |
| institution | Kabale University |
| issn | 2589-9430 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | China Geology |
| spelling | doaj-art-dd8a4655e9b441a9a9e5538ee51d03e52025-08-20T03:29:31ZengKeAi Communications Co., Ltd.China Geology2589-94302024-04-017224826310.31035/cg2023144Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulationChang Yang0Yong-bo Tie1Xian-zheng Zhang2Yan-feng Zhang3Zhi-jie Ning4Zong-liang Li5Chinese Academy of Geological Sciences, Beijing 100037, China; Chengdu Center of China Geological Survey, China Geological Survey, Chengdu 610081, ChinaChengdu Center of China Geological Survey, China Geological Survey, Chengdu 610081, China; Technology innovation center for risk prevention and mitigation of geohazard, Ministry of Natural Resources, Chengdu 611734, China; Observation and Research Station of Chengdu Geological Hazards, Ministry of Natural Resources, Chengdu 610000, China; Corresponding author:Chengdu Center of China Geological Survey, China Geological Survey, Chengdu 610081, China; Technology innovation center for risk prevention and mitigation of geohazard, Ministry of Natural Resources, Chengdu 611734, China; Observation and Research Station of Chengdu Geological Hazards, Ministry of Natural Resources, Chengdu 610000, ChinaChinese Academy of Geological Sciences, Beijing 100037, ChinaChinese Academy of Geological Sciences, Beijing 100037, ChinaChengdu Center of China Geological Survey, China Geological Survey, Chengdu 610081, China; Technology innovation center for risk prevention and mitigation of geohazard, Ministry of Natural Resources, Chengdu 611734, China; Observation and Research Station of Chengdu Geological Hazards, Ministry of Natural Resources, Chengdu 610000, ChinaABSTRACT: Xinqiao Gully is located in the area of the 2008 Wenchuan Ms 8.0 earthquake in Sichuan province, China. Based on the investigation of the 2023 “6-26” Xinqiao Gully debris flow event, this study assessed the effectiveness of the debris flow control project and evaluated the debris flow hazards. Through field investigation and numerical simulation methods, the indicators of flow intensity reduction rate and storage capacity fullness were proposed to quantify the effectiveness of the engineering measures in the debris flow event. The simulation results show that the debris flow control project reduced the flow intensity by 41.05% to 64.61%. The storage capacity of the dam decreases gradually from upstream to the mouth of the gully, thus effectively intercepting and controlling the debris flow. By evaluating the debris flow of different recurrence intervals, further measures are recommended for managing debris flow events.http://www.sciencedirect.com/science/article/pii/S2096519224001071LandslideDebris flowHazard assessmentNumerical simulationOpenLISEMPrevention and control project |
| spellingShingle | Chang Yang Yong-bo Tie Xian-zheng Zhang Yan-feng Zhang Zhi-jie Ning Zong-liang Li Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulation China Geology Landslide Debris flow Hazard assessment Numerical simulation OpenLISEM Prevention and control project |
| title | Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulation |
| title_full | Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulation |
| title_fullStr | Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulation |
| title_full_unstemmed | Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulation |
| title_short | Analysis of debris flow control effect and hazard assessment in Xinqiao Gully, Wenchuan Ms 8.0 earthquake area based on numerical simulation |
| title_sort | analysis of debris flow control effect and hazard assessment in xinqiao gully wenchuan ms 8 0 earthquake area based on numerical simulation |
| topic | Landslide Debris flow Hazard assessment Numerical simulation OpenLISEM Prevention and control project |
| url | http://www.sciencedirect.com/science/article/pii/S2096519224001071 |
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