A Model of Debris Flow Forecast Based on the Water-Soil Coupling Mechanism
文献类型：期刊论文
| 作者 | Zhang, Shaojie1,2 ; Yang, Hongjuan2; Wei, Fangqiang2; Jiang, Yuhong2; Liu, Dunlong2
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| 刊名 | JOURNAL OF EARTH SCIENCE
 |
| 出版日期 | 2014-08-01 |
| 卷号 | 25期号:4页码:757-763 |
| 关键词 | debris flow forecast watershed scale soil-water coupling distributed hydrological model limit equilibrium analysis Jiangjia Gulley |
| ISSN号 | 1674-487X |
| 通讯作者 | Wei FQ |
| 英文摘要 | Debris flow forecast is an important means of disaster mitigation. However, the accuracy of the statistics-based debris flow forecast is unsatisfied while the mechanism-based forecast is unavailable at the watershed scale because most of existing researches on the initiation mechanism of debris flow took a single slope as the main object. In order to solve this problem, this paper developed a model of debris flow forecast based on the water-soil coupling mechanism at the watershed scale. In this model, the runoff and the instable soil caused by the rainfall in a watershed is estimated by the distributed hydrological model (GBHM) and an instable identification model of the unsaturated soil. Because the debris flow is a special fluid composed of soil and water and has a bigger density, the density estimated by the runoff and instable soil mass in a watershed under the action of a rainfall is employed as a key factor to identify the formation probability of debris flow in the forecast model. The Jiangjia Gulley, a typical debris flow valley with a several debris flow events each year, is selected as a case study watershed to test this forecast model of debris flow. According the observation data of Dongchuan Debris Flow Observation and Research Station, CAS located in Jiangjia Gulley, there were 4 debris flow events in 2006. The test results show that the accuracy of the model is satisfied. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geosciences, Multidisciplinary |
| 研究领域[WOS] | Geology |
| 关键词[WOS] | RAINFALL ; LANDSLIDES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000339462600016 |
| 公开日期 | 2014-11-26 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7447]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Zhang, Shaojie,Yang, Hongjuan,Wei, Fangqiang,et al. A Model of Debris Flow Forecast Based on the Water-Soil Coupling Mechanism[J]. JOURNAL OF EARTH SCIENCE,2014,25(4):757-763. |
| APA | Zhang, Shaojie,Yang, Hongjuan,Wei, Fangqiang,Jiang, Yuhong,&Liu, Dunlong.(2014).A Model of Debris Flow Forecast Based on the Water-Soil Coupling Mechanism.JOURNAL OF EARTH SCIENCE,25(4),757-763. |
| MLA | Zhang, Shaojie,et al."A Model of Debris Flow Forecast Based on the Water-Soil Coupling Mechanism".JOURNAL OF EARTH SCIENCE 25.4(2014):757-763. |
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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