Characteristics of a drainage channel with staggered indented sills for controlling debris flows

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-2014 > Vol11 No.5

	Characteristics of a drainage channel with staggered indented sills for controlling debris flows
	Chen Xiao-qing1,2,3 ; You Yong1,2,3 ; Chen Jian-gang1,2,3 ; Huang Kai 1,2,3; Li De-ji 1,2,3
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2014-09-01
卷号	11 期号:5 页码:1242-1252
关键词	Debris flow Drainage channel Staggered indented sill Wenchuan earthquake
ISSN号	1672-6316
通讯作者	CHEN Xiao-qing
英文摘要	The characteristics of a new type of drainage channel with staggered indented sills for controlling debris flows were studied. The intermediate fluid in the non-viscous debris flow exhibited a helical movement, whereas the fluid near the sidewall had a stop-start movement pattern; the viscous debris flow exhibited a stable structure between the indented sills. The experimental results indicate that the mean velocity of the debris flow increased with increasing channel gradients, and the debris flow velocity was slightly affected by the angle of the sills. The average velocity of the non-viscous debris flow increased in the range of (0.5-1.5) interval between the indented sills, whereas the average velocity of the viscous debris flow increased initially and then decreased in the range of (0.75-1.25) interval between the indented sills. The depth of the non-viscous debris flow tended to gradually increase as the channel gradients increased, whereas the depth of the viscous debris flow gradually decreased as the channel gradients increased. When the discharge of the debris flow was constant, the angle and the interval between the indented sills had a slight effect on the depth of the viscous debris flow, whereas the depth of the non-viscous debris flow exhibited a different trend, as the sill angles and intervals were varied.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	WENCHUAN EARTHQUAKE ZONE ; JIANGJIA RAVINE ; CHINA ; LANDSLIDES ; COUNTY
收录类别	SCI
语种	英语
WOS记录号	WOS:000342223500013
公开日期	2014-09-17
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/7252]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.5 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 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Chen Xiao-qing,You Yong,Chen Jian-gang,et al. Characteristics of a drainage channel with staggered indented sills for controlling debris flows[J]. JOURNAL OF MOUNTAIN SCIENCE,2014,11(5):1242-1252.
APA	Chen Xiao-qing,You Yong,Chen Jian-gang,Huang Kai,&Li De-ji.(2014).Characteristics of a drainage channel with staggered indented sills for controlling debris flows.JOURNAL OF MOUNTAIN SCIENCE,11(5),1242-1252.
MLA	Chen Xiao-qing,et al."Characteristics of a drainage channel with staggered indented sills for controlling debris flows".JOURNAL OF MOUNTAIN SCIENCE 11.5(2014):1242-1252.