The disastrous 23 July 2009 debris flow in Xiangshui Gully, Kangding County, Southwestern China
文献类型：期刊论文
| 作者 | Tang Chuan ; Yang Yonghong ; Su Yongchao ; Ding Jun ; Huang Wenjie |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2011-04 |
| 卷号 | 8期号:2页码:131–139 |
| 关键词 | Debris flow Rainfall intensity Debris supply Deposition Velocity China |
| ISSN号 | 1672-6316 |
| 通讯作者 | Tang, CA |
| 英文摘要 | On 23 July 2009, a catastrophic debris flows were triggered by heavy rainfall in Xiangshui gully, Kangding county, southwestern China. This debris flow originating shortly after a rainstorm with an intensity of 28 mm per hour transported a total volume of more than 480x10(3) m(3) debris, depositing the poorly sorted sediment including boulders up to 2-3 m in diameter both onto an existing debris fans and into the river. Our primary objective for this study was to analyze the characteristics of the triggering rainfall and the debris supply conditions, and to estimate debris-flow volume, mean velocity, and discharge. A comparison with adjacent rain-gage records indicates that debris flows in this setting can be produced in response to as little as 17 mm/hour or 3.5 mm/10-minute of rainfall intensity with relatively lower amount of cumulative antecedent rainfall. The field measurement and the interpretation of the Worldview image indicate that abundant landslides occurred on steep slopes within areas underlain by highly weathered granite. Using empirical equations that combine flow depth and channel slope, the mean velocity and discharge of the debris flow were estimated to be 9.2 m/s and 2150 m(3)/s, respectively. The results contribute to a better understanding of the conditions leading to catastrophic debris flows. |
| 语种 | 英语 |
| 公开日期 | 2013-08-12 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5816]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2011_Vol8 No.2 |
| 推荐引用方式 GB/T 7714 | Tang Chuan,Yang Yonghong,Su Yongchao,et al. The disastrous 23 July 2009 debris flow in Xiangshui Gully, Kangding County, Southwestern China[J]. JOURNAL OF MOUNTAIN SCIENCE,2011,8(2):131–139. |
| APA | Tang Chuan,Yang Yonghong,Su Yongchao,Ding Jun,&Huang Wenjie.(2011).The disastrous 23 July 2009 debris flow in Xiangshui Gully, Kangding County, Southwestern China.JOURNAL OF MOUNTAIN SCIENCE,8(2),131–139. |
| MLA | Tang Chuan,et al."The disastrous 23 July 2009 debris flow in Xiangshui Gully, Kangding County, Southwestern China".JOURNAL OF MOUNTAIN SCIENCE 8.2(2011):131–139. |
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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