Influence of inflow discharge and bed erodibility on outburst flood of landslide dam

doi:10.1007/s11629-018-5312-8

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2019 > Vol16 No.4

	Influence of inflow discharge and bed erodibility on outburst flood of landslide dam
	Zhou Ming-jun; Zhou, Gordon G. D.; Cui, Kahlil Fredrick E.; Song Dong-ri; Lu Xue-qiang
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:4 页码:778-792
关键词	Landslide dam Inflow discharge Erodible bed Outburst flood
ISSN号	1672-6316
DOI	10.1007/s11629-018-5312-8
文献子类	Article
英文摘要	Accurate prediction of the hydrographs of outburst floods induced by landslide dam overtopping failure is necessary for hazard prevention and mitigation. In this study, flume model tests on the breaching of landslide dams were conducted. Unconsolidated soil materials with wide grain size distributions were used to construct the dam. The effects of different upstream inflow discharges and downstream bed soil erosion on the outburst peak discharge were investigated. Experimental results reveal that the whole hydrodynamic process of landslide dam breaching can be divided into three stages as defined by clear inflection points and peak discharges. The larger the inflow discharge, the shorter the time it takes to reach the peak discharge, and the larger the outburst flood peak discharge. The scale of the outburst floods was found to be amplified by the presence of an erodible bed located downstream of the landslide dam. This amplification decreases with the increase of upstream inflow. In addition, the results show that the existence of an erodible bed increases the density of the outburst flow, increasing its probability of transforming from a sediment flow to a debris flow.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000464752500005
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46469]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.4
推荐引用方式 GB/T 7714	Zhou Ming-jun,Zhou, Gordon G. D.,Cui, Kahlil Fredrick E.,et al. Influence of inflow discharge and bed erodibility on outburst flood of landslide dam[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(4):778-792.
APA	Zhou Ming-jun,Zhou, Gordon G. D.,Cui, Kahlil Fredrick E.,Song Dong-ri,&Lu Xue-qiang.(2019).Influence of inflow discharge and bed erodibility on outburst flood of landslide dam.JOURNAL OF MOUNTAIN SCIENCE,16(4),778-792.
MLA	Zhou Ming-jun,et al."Influence of inflow discharge and bed erodibility on outburst flood of landslide dam".JOURNAL OF MOUNTAIN SCIENCE 16.4(2019):778-792.