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 > 山地灾害与地表过程重点实验室

	Determination of optimal grid opening width for herringbone water-sediment separation structures based on sediment separation efficiency
	Xie Xiang-ping1 ; Wei Fang-qiang2 ; Wang Xiao-jun 1; Yang Hong-juan3
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2019-03-01
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
通讯作者	Wei Fang-qiang(fqwei@cigit.ac.cn)
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.
资助项目	National Science and Technology Support Program[2011BAK12B00]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000460754100010
资助机构	National Science and Technology Support Program
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/25308]
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	Wei Fang-qiang
作者单位	1.Anyang Inst Technol, Anyang 455000, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
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.