Experimental study on large wood filtration performance by herringbone water-sediment separation structure

doi:10.1007/s11629-016-3922-6

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-2017 > Vol14 No.2

	Experimental study on large wood filtration performance by herringbone water-sediment separation structure
	Xie Xiang-ping1,2,3 ; Wei Fang-qiang1,2 ; Yang Hong-juan1,2 ; Xie Tao 4
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2017-02-01
卷号	14 期号:2 页码:269-281
关键词	Debris Flow Large Wood Herringbone Water-sediment Separation Structure Filtration Effect
ISSN号	1672-6316
DOI	10.1007/s11629-016-3922-6
通讯作者	WEI Fang-qiang
文献子类	Article
英文摘要	A herringbone water-sediment separation structure (hereinafter referred to as "herringbone structure") has been shown to be effective in separating coarse inorganic debris; however, less is known regarding the large wood (LW) filtration effect in this structure. This paper presents preliminary research on the wood filtration effect of the herringbone structure based on physical model tests. The results show that the herringbone structure exhibited effective performance in large wood size segregation, with a 100% component filtration rate for LW that diameter (D) larger than ribbed beam opening width (a). The total filtration rate also exceeded 80% when the Fraud number (Fr) is larger than 2.64 and increased with the increase of Fr. After exceeding Fr (max), total filtration rate would be decreased due to overflow. Beside flow condition, structure parameters influence significantly on LW filtration rate. We attempt to explain the filtration process via particle contact trajectory and particle movement trajectory. The inclined angle of ribbed beam (gamma) contributed the most variation to the filtration rate via influencing the coincidence with particle contact trajectory and particle movement trajectory. The high sensitivity coefficient of ribbed beam (theta) under relatively low Fr conditions implies remarkable influences on LW filtration effects by causing clogging problem. The ribbed beam opening width (a) together with LW diameter (D) influenced the size segregation performance.
WOS关键词	DEBRIS FLOW DEFENSE ; MOUNTAIN STREAMS ; FLUME EXPERIMENT ; CASCADE RANGE ; CHANNEL ; STORAGE ; RIVERS ; HYDRAULICS ; WASHINGTON ; RESISTANCE
语种	英语
WOS记录号	WOS:000394156900004
资助机构	National Science and Technology Support Program(2011BAK12B00) ; International Cooperation Project of the Department of Science and Technology of Sichuan Province(2009HH0005)
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18417]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.2 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, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chongqing Jiaotong Univ, Chongqing 400074, Peoples R China
推荐引用方式 GB/T 7714	Xie Xiang-ping,Wei Fang-qiang,Yang Hong-juan,et al. Experimental study on large wood filtration performance by herringbone water-sediment separation structure[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(2):269-281.
APA	Xie Xiang-ping,Wei Fang-qiang,Yang Hong-juan,&Xie Tao.(2017).Experimental study on large wood filtration performance by herringbone water-sediment separation structure.JOURNAL OF MOUNTAIN SCIENCE,14(2),269-281.
MLA	Xie Xiang-ping,et al."Experimental study on large wood filtration performance by herringbone water-sediment separation structure".JOURNAL OF MOUNTAIN SCIENCE 14.2(2017):269-281.