Centrifugal model tests and numerical simulations for barrier dam break due to overtopping

doi:10.1007/s11629-018-5024-0

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.3

	Centrifugal model tests and numerical simulations for barrier dam break due to overtopping
	Zhao Tian-long; Chen Sheng-shui; Fu Chang-jing; Zhong Qi-ming
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:3 页码:630-640
关键词	Barrier dam Overtopping Failure mechanism Centrifugal model test Numerical simulation
ISSN号	1672-6316
DOI	10.1007/s11629-018-5024-0
文献子类	Article
英文摘要	The present study focuses on the breaching process and failure of barrier dams due to overtopping. In this work, a series of centrifugal model tests is presented to examine the failure mechanisms of landslide dams. Based on the experimental results, failure process and mechanism of barrier dam due to overtopping are analyzed and further verified by simulating the experimental overtopping failure process. The results indicate that the barrier dam will develop during the entire process of overtopping in the width direction, whereas the breach will cease to develop at an early stage in the depth direction because of the large particles that accumulate on the downstream slope. Moreover, headcut erosion can be clearly observed in the first two stages of overtopping, and coarsening on the downstream slope occurs in the last stage of overtopping. Thus, the bottom part of the barrier dam can survive after dam breaching and full dam failure becomes relatively rare for a barrier dam. Furthermore, the remaining breach would be smaller than that of a homogeneous cohesive dam under the same conditions.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000460754100011
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46456]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.3
推荐引用方式 GB/T 7714	Zhao Tian-long,Chen Sheng-shui,Fu Chang-jing,et al. Centrifugal model tests and numerical simulations for barrier dam break due to overtopping[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(3):630-640.
APA	Zhao Tian-long,Chen Sheng-shui,Fu Chang-jing,&Zhong Qi-ming.(2019).Centrifugal model tests and numerical simulations for barrier dam break due to overtopping.JOURNAL OF MOUNTAIN SCIENCE,16(3),630-640.
MLA	Zhao Tian-long,et al."Centrifugal model tests and numerical simulations for barrier dam break due to overtopping".JOURNAL OF MOUNTAIN SCIENCE 16.3(2019):630-640.