Assessment of debris-flow potential dangers in the Jiuzhaigou Valley following the August 8, 2017, Jiuzhaigou earthquake, western China
文献类型：期刊论文
| 作者 | Hu, Xudong1,2,3; Hu, Kaiheng1,2 ; Tang, Jinbo1,2; You, Yong1,2; Wu, Chaohua1,2,3
|
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2019-06-05 |
| 卷号 | 256页码:57-66 |
| 关键词 | Jiuzhaigou earthquake Debris flow Sediment augmentation Potential danger assessment |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2019.05.004 |
| 通讯作者 | Hu, Kaiheng(khhu@imde.ac.cn) |
| 英文摘要 | On August 8, 2017, an M-s 7.0 earthquake occurred at the Jiuzhaigou World Natural and Cultural Heritage, Sichuan Province, southwestern China. Eighty-three earthquake-induced landslides that directly damaged the Jiuzhaigou heritage sites were identified via remote-sensing interpretation and field survey. The coseismic landslides were concentrated primarily within 3 km of the seismogenic fault. Large volumes of sediments were transported into catchments of the Jiuzhaigou Valley, creating a geo-environment conducive to debris flow hazards triggered by post-earthquake heavy rainfall. A methodology combining the calculation of sediment augmentation, particle model, and numerical algorithm is developed to assess the potential dangers of post-quake debris flows. Five typical catchments strongly affected by the earthquake are chosen as study cases. The simulation results at Xiajijiehai Gully show a good agreement with the actual inundation area of the debris-flow event on September 25, 2017. The comparison of pre- and post-earthquake scenarios shows that an increase in sediment supply can greatly increase the debris-flow potential dangers characterized by higher maximum flow depths and larger inundation areas. |
| WOS关键词 | 2008 WENCHUAN EARTHQUAKE ; INDUCED LANDSLIDES ; HAZARD ASSESSMENT ; IMPACT ; SIMULATION ; PREDICTION ; DISTANCES ; MODEL ; TIME ; AREA |
| 资助项目 | National Key R&D Program of China[2018YFC1505205] ; National Basic Research Program of China (973 Program)[2015CB452704] ; National Natural Science Foundation of China[41601011] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000472690300004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Key R&D Program of China ; National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China |
| 源URL | [http://ir.imde.ac.cn/handle/131551/26503]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Hu, Kaiheng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Xudong,Hu, Kaiheng,Tang, Jinbo,et al. Assessment of debris-flow potential dangers in the Jiuzhaigou Valley following the August 8, 2017, Jiuzhaigou earthquake, western China[J]. ENGINEERING GEOLOGY,2019,256:57-66. |
| APA | Hu, Xudong,Hu, Kaiheng,Tang, Jinbo,You, Yong,&Wu, Chaohua.(2019).Assessment of debris-flow potential dangers in the Jiuzhaigou Valley following the August 8, 2017, Jiuzhaigou earthquake, western China.ENGINEERING GEOLOGY,256,57-66. |
| MLA | Hu, Xudong,et al."Assessment of debris-flow potential dangers in the Jiuzhaigou Valley following the August 8, 2017, Jiuzhaigou earthquake, western China".ENGINEERING GEOLOGY 256(2019):57-66. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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