A simple method to evaluate the performance of an intercept dam for debrisflow mitigation

doi:10.1016/j.enggeo.2020.105771

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 > 山地灾害与地表过程重点实验室

	A simple method to evaluate the performance of an intercept dam for debrisflow mitigation
	Liu Wei 1,2; Yan Shuaixing 1,2; He Siming 1,2,3
刊名	ENGINEERING GEOLOGY
	2020
卷号	276 页码:105771
关键词	Debris-flow mitigation Intercept dam performance evaluation Two-phase debris flow Dam collapse Solid-fluid separation
ISSN号	0013-7952
DOI	10.1016/j.enggeo.2020.105771
产权排序	1
文献子类	Article
英文摘要	This study aimed to establish a simple approach to evaluate the performance of an intercept dam during a debris-flow event. We applied the two-phase debris-flow model proposed by Pudasaini (2012) and combined it with the dam moment-balance equation, to describe the state of the debris flow and the structural integrity and functions of such dams. To delineate dam performance, we introduced two new variables, representing reservoir capacity and anti-overturning stability of the dam, respectively. In addition, we developed a grid optimization technique to improve calculation efficiency. The feasibility of the proposed model was validated by simulating a debris-flow event in the Hongchun catchment, Sichuan, China, where a system of structures had been constructed to prevent debris flows, or to mitigate the possible hazard. Our results suggested that the process of debris-flow propagation and the variation in dam performance caused by the interaction between the debris motion and the dam were appropriately described. Further, we have presented a discussion on dam collapse and solid-fluid separation to clarify their effects on debris-flow mitigation.
电子版国际标准刊号	1872-6917
语种	英语
WOS记录号	WOS:000576189100018
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46854]
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
通讯作者	He Siming
作者单位	1.University of Chinese Academy of Sciences, Beijing, China; 2.Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; 3.Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Liu Wei,Yan Shuaixing,He Siming. A simple method to evaluate the performance of an intercept dam for debrisflow mitigation[J]. ENGINEERING GEOLOGY,2020,276:105771.
APA	Liu Wei,Yan Shuaixing,&He Siming.(2020).A simple method to evaluate the performance of an intercept dam for debrisflow mitigation.ENGINEERING GEOLOGY,276,105771.
MLA	Liu Wei,et al."A simple method to evaluate the performance of an intercept dam for debrisflow mitigation".ENGINEERING GEOLOGY 276(2020):105771.