Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency

doi:10.1007/s11629-018-5038-7

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

	Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency
	Xie Xiang-ping; Wei Fang-qiang; Wang Xiao-jun; Yang Hong-juan
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019
卷号	16 期号:3 页码:619-629
关键词	Debris flow Water-sediment separation Structure design Sediment separation efficiency Grid opening width
ISSN号	1672-6316
DOI	10.1007/s11629-018-5038-7
文献子类	Article
英文摘要	The herringbone water-sediment separation structure (HWSSS) was developed to prevent debris flows. This paper mainly focuses on evaluating the sediment separation efficiency of HWSSS in debris flow prevention and determining the grid opening width D, a crucial structure parameter for HWSSS design. Theoretical analysis on the total sediment separation rate P-t reveals that the efficiency of sediment separation is much related with sediment grain size distribution (GSD) and grid opening width. The lower limit of Pt is deduced from the perspective of safety consideration by transforming debris flow into sediment-laden flow. Hydraulic model tests were carried out. Based on the regression analysis of the experimental data, the quantitative relationships between Pt and D and GSD characteristic values were finally established. A procedure for determining optimal grid opening width is proposed based on these analyses. These results are of significance in evaluating sediment separation effect by HWSSS in debris flow prevention and contribute to a more explicit methodology for design of HWSSS.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000460754100010
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46455]
专题	Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.3
推荐引用方式 GB/T 7714	Xie Xiang-ping,Wei Fang-qiang,Wang Xiao-jun,et al. Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(3):619-629.
APA	Xie Xiang-ping,Wei Fang-qiang,Wang Xiao-jun,&Yang Hong-juan.(2019).Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency.JOURNAL OF MOUNTAIN SCIENCE,16(3),619-629.
MLA	Xie Xiang-ping,et al."Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency".JOURNAL OF MOUNTAIN SCIENCE 16.3(2019):619-629.