Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense

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 > 山区发展研究中心

	Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense
	Xie, Tao 1,2,3; Wei, Fangqiang2 ; Yang, Hongjuan2 ; Gardner, James S.4; Xie, Xiangping1,2,3 ; Dai, Zhiqiang 2; Jiang, Zhen2
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2016-02-01
卷号	75 期号:1 页码:101-108
关键词	Debris flow Water-sediment separation structure Herringbone water-sediment separation grid Structure dimension Debris flow defense
ISSN号	1435-9529
通讯作者	Wei, Fangqiang
英文摘要	A new water-sediment separation structure with a herringbone separation grid has been developed for debris flow defense. Previous model experiments showed that, compared to existing structures, this structure can continuously maintain its water-sediment separation function. However, in the structure design, the length of the separation grid is key to its success in separating water and sediment. This paper presents a theoretical formula for calculating the design length of the grid. The theoretical formula shows that the grid length relates to the debris flow velocity v (x), the grid width B, and the grid incline angle theta. A series of model experiments were conducted in the laboratory to test the accuracy of the formula. The results show that the experimental value and the theoretical value for grid length form a linear relationship and the design length of the grid may be corrected by a coefficient. Further analysis indicates that the correction coefficient changes with the bulk density of debris flow. Finally, a formula for determining the grid design length is derived from the theoretical formula, corrected using a coefficient related to the bulk density of a debris flow.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
研究领域[WOS]	Engineering ; Geology
关键词[WOS]	MITIGATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000369994600008
公开日期	2016-04-26
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/15108]
专题	成都山地灾害与环境研究所_山区发展研究中心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, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Manitoba, Clayton Riddell Fac Environm Earth & Resources, Winnipeg, MB, Canada
推荐引用方式 GB/T 7714	Xie, Tao,Wei, Fangqiang,Yang, Hongjuan,et al. Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2016,75(1):101-108.
APA	Xie, Tao.,Wei, Fangqiang.,Yang, Hongjuan.,Gardner, James S..,Xie, Xiangping.,...&Jiang, Zhen.(2016).Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,75(1),101-108.
MLA	Xie, Tao,et al."Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 75.1(2016):101-108.