Case Study of the Characteristics and Dynamic Process of July 10, 2013, Catastrophic Debris Flows in Wenchuan County, China | |
Hu, Gui-Sheng1; Chen, Ning-Sheng1; Tanoli, Javed Iqbal1,2; You, Yong1; Li, Jun1 | |
刊名 | Earth Sciences Research Journal |
2016-06-01 | |
卷号 | 20期号:2页码:DOI: 10.15446/esrj.v20n2.48026 |
关键词 | Debris flow dynamic process the block and burst characteristics prevention and cure measures |
ISSN号 | 1794-6190 |
通讯作者 | 陈宁生 |
英文摘要 | The Wenchuan earthquake of May 12, 2008, generated a significant amount of loose solid material that can produce devastating debris flows. In the five years since the earthquake, there have been many large-scale individual and group catastrophic debris flows that have caused lots of damage to the resettled population and the reconstruction efforts. The reconstructed towns of Yingxiu, Yinxing and Miansi have suffered debris flows and other secondary disasters in the past five years and are still not out of danger in the future. A debris-flow catastrophic event hit four towns of Wenchuan County along the Duwen Highway, part of China's National Highway 213, at midnight on July 10, 2013, following a local extreme rainfall of 176.2mm 24h-1. The debris flows occurred simultaneously along seven gullies. A total of 15000 people were affected due to the destruction of resettlement areas, factories, power stations, and houses. Because of this devastating event, traffic along the Duwen highway was completely disrupted during the disaster and recovery period. The present study focuses on the Lianshan Bridge debris flow gully; the disaster characteristics and cause of the debris flow were analyzed based on field investigations, remote sensing interpretation, and laboratory experiments. The particular dynamic parameters of the debris flow were calculated and analyzed including density, velocity, discharge, total volume and impact force. Also, the dynamic processes and changes that occurred in the debris flow were examined, and the block and burst characteristics of debris flow were studied based on statistical calculation and analysis dynamic characteristic parameters of debris flow. Finally, a program to prevent further debris flow was proposed according to the on-site investigation and based on the analysis of the features and dynamic processes of the debris flow. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Geosciences, Multidisciplinary |
研究领域[WOS] | Geology |
关键词[WOS] | RUNOUT CHARACTERISTICS ; RAINFALL THRESHOLD ; EARTHQUAKE ; SICHUAN ; SIMULATION ; VALLEY ; AREA |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000392804600006 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/17870] |
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, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China 2.COMSATS Inst Informat Technol, Dept Earth Sci, Abbottabad 22060, Pakistan |
推荐引用方式 GB/T 7714 | Hu, Gui-Sheng,Chen, Ning-Sheng,Tanoli, Javed Iqbal,et al. Case Study of the Characteristics and Dynamic Process of July 10, 2013, Catastrophic Debris Flows in Wenchuan County, China[J]. Earth Sciences Research Journal,2016,20(2):DOI: 10.15446/esrj.v20n2.48026. |
APA | Hu, Gui-Sheng,Chen, Ning-Sheng,Tanoli, Javed Iqbal,You, Yong,&Li, Jun.(2016).Case Study of the Characteristics and Dynamic Process of July 10, 2013, Catastrophic Debris Flows in Wenchuan County, China.Earth Sciences Research Journal,20(2),DOI: 10.15446/esrj.v20n2.48026. |
MLA | Hu, Gui-Sheng,et al."Case Study of the Characteristics and Dynamic Process of July 10, 2013, Catastrophic Debris Flows in Wenchuan County, China".Earth Sciences Research Journal 20.2(2016):DOI: 10.15446/esrj.v20n2.48026. |
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