Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China
文献类型：期刊论文
| 作者 | Chen, Xingzhang1; Cui, Peng2 ; You, Yong2; Liu, Jinfeng2
|
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 65期号:4页码:995-1003 |
| 关键词 | Wenchuan earthquake Debris flow Peak discharge Blocking coefficient Subao River |
| ISSN号 | 1866-6280 |
| 通讯作者 | Chen, Xingzhang |
| 英文摘要 | Subao River lies along the Beichuan-Yingxiu fault in Beichuan County, which has been heavily impacted by the Wenchuan earthquake on 12 May 2008 and has become sources of many geo-hazards. On 24 September 2008, a rainstorm triggered a large debris flow in the catchment, causing several deaths and significant damages. A case study on changes of the debris flow was conducted in the river. The peak discharges were calculated in the Guanmenzi, Huangnidi, and Daanshan gullies. Results indicated that the peak discharges corresponded to various return periods in different gullies: 200 years in Daanshan, 100 years in Huangnidi, and 50 years in Guanmenzi. However, the triggering precipitation in these three gullies was only of a 20-year return period. The debris flows had undergone significant changes. Analysis indicated that the changes should be ascribed to the flow characteristics, initiation conditions, and the channel blockage impacted by the rapid accumulation of loose material. Channel blockage was the principal factor increasing the scale of the debris flow. The values on the blocking coefficient were presented based on density, height, and other characteristics of dams. Finally, all of the peak debris flow discharges of the Subao River Valley for a 20-year return period were calculated using the recommended blocking coefficient values. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000299840100005 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/9926]  |
| 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.SW Univ Sci & Technol, Sch Environm & Resource, Mianyang 621010, Sichuan, Peoples R China 2.Chinese Acad Sci, Key Lab Mt Surface Proc & Hazards, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Xingzhang,Cui, Peng,You, Yong,et al. Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China[J]. ENVIRONMENTAL EARTH SCIENCES,2012,65(4):995-1003. |
| APA | Chen, Xingzhang,Cui, Peng,You, Yong,&Liu, Jinfeng.(2012).Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China.ENVIRONMENTAL EARTH SCIENCES,65(4),995-1003. |
| MLA | Chen, Xingzhang,et al."Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China".ENVIRONMENTAL EARTH SCIENCES 65.4(2012):995-1003. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。