Characteristics and hazard prediction of large-scale debris flow of Xiaojia Gully in Yingxiu Town, Sichuan Province, China
文献类型：期刊论文
| 作者 | Liu Jinfeng1,2 ; You Yong1,2; Chen Xiaoqing1,2; Liu Jiankang1,2; Chen Xingzhang3
|
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2014-10-08 |
| 卷号 | 180页码:55-67 |
| 关键词 | Debris flow Disaster characteristics Wenchuan earthquake Hazard prediction Runout distance |
| ISSN号 | 0013-7952 |
| 通讯作者 | Liu Jinfeng |
| 英文摘要 | The Wenchuan earthquake of May 12, 2008 produced large amounts of loose solid material that can lead to the development of devastating debris flows. In 5 years since the earthquake, large numbers of large-scale debris flows occurred and caused great damage to the resettled population and the reconstruction efforts. The reconstructed Yingxiu Town suffered debris flow and its secondary disaster in the past 5 years, and will be in the risk range of debris flow hazard in the future. It is very important to predict debris flow and its secondary hazard (especially the dam-breaking flood) near the town. The debris flow of the Xiaojia Gully was described and analyzed as a typical large-scale case in the Yingxiu area. The study aimed to describe the debris flow event, investigate the sediment supply conditions, analyze the characteristics of the debris flow deposition, calculate the river-blocking parameters, and predict the damage of dam-breaking flood to Yingxiu Town under different debris flow frequencies. Debris flows in Xiaojia Gully were well developed and occurred several times, resulting in frequent interruption of traffic on the S303 road. The interpretation of satellite images showed that landslide deposition, channel deposition, and soil erosion sediment were three kinds of sediment supply types for debris flow formation. 188 sediment supply sites in total were identified in the catchment. The total area for the supply of sediment for debris flows is about 0.99 km(2), giving a total volume of 532.09 x 10(4) m(3). If the Yuzi River is blocked by debris flow material, the dam-breaking flood can cause potential damage to the newly constructed Yingxiu Town. The calculation results reveal that debris flows with a frequency of 5% and 10% are impossible to cause river-blockage, and consequently, the Yingxiu Town is safe in these situations. However, debris flows with a frequency of 1% and 2% may cause river blockage and the dam-breaking flood can cause damage to the Yingxiu Town. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Geological ; Geosciences, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Geology |
| 关键词[WOS] | 2008 WENCHUAN EARTHQUAKE ; RUNOUT CHARACTERISTICS ; LANDSLIDE ; SEGREGATION ; SIMULATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344422700006 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/9940]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.Southwest Univ Sci & Technol, Sch Environm & Resources, Mianyang 621010, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Jinfeng,You Yong,Chen Xiaoqing,et al. Characteristics and hazard prediction of large-scale debris flow of Xiaojia Gully in Yingxiu Town, Sichuan Province, China[J]. ENGINEERING GEOLOGY,2014,180:55-67. |
| APA | Liu Jinfeng,You Yong,Chen Xiaoqing,Liu Jiankang,&Chen Xingzhang.(2014).Characteristics and hazard prediction of large-scale debris flow of Xiaojia Gully in Yingxiu Town, Sichuan Province, China.ENGINEERING GEOLOGY,180,55-67. |
| MLA | Liu Jinfeng,et al."Characteristics and hazard prediction of large-scale debris flow of Xiaojia Gully in Yingxiu Town, Sichuan Province, China".ENGINEERING GEOLOGY 180(2014):55-67. |
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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