Impact characteristics of gustiness debris flow on check dam

doi:10.1088/1757-899X/657/1/012013

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

	Impact characteristics of gustiness debris flow on check dam
	Jiang X.G.1,2 ; Liu F.W.1; Hu K.H.2 ; Liu T.1; Wang H.J.1; Li L.1; Zheng S.Y.1; Chen Y.1; Song S.J.1; Wang Y.D.1
	2019
会议日期	August 19, 2019 - August 22, 2019
会议地点	Beijing
关键词	Anti-overturning Debris flows Decrease rate Displacement and stress Flow depth Impact characteristics Impact force Viscous debris flows
卷号	657
期号	1
DOI	10.1088/1757-899X/657/1/012013
页码	12013
国家	China
英文摘要	The gustiness is a common motion form of debris flow, especially viscous debris flow. However, few researches have considered the gustiness into the impact characteristics of debris flow, which needs further research. In this study, the check dam was used as the load receptor to study the impact characteristics of gustiness debris flow. The results show that, under the same general flow depth, the dam stress considering the impact of gustiness debris flow is far less than that of disposable continuous debris flow. The impact force increases with the increase of the times of gustiness debris flow, and the impact torque increases linearly. Under the impact of gustiness debris flow, the displacement and stress of the dam vary in the same rule. The safety factors of anti-sliding and anti-overturning of the dam under the effect of gustiness debris flow are larger than those of disposable continuous debris flow, and the decrease rate of the safety factors increases with the increase of the times of gustiness debris flow. And under the condition of the same total flow depth, the increase of the debris flow depth can significantly decrease the stability of dam. The conclusions can provide reference for the design of blocking structures of gustiness and frequent debris flow. © Published under licence by IOP Publishing Ltd.
产权排序	2
会议录	IOP Conference Series: Materials Science and Engineering
会议录出版者	Institute of Physics Publishing
语种	英语
电子版国际标准刊号	1757899X
ISSN号	17578981
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/33433]
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	Jiang X.G.
作者单位	1.College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, China; 2.Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
推荐引用方式 GB/T 7714	Jiang X.G.,Liu F.W.,Hu K.H.,et al. Impact characteristics of gustiness debris flow on check dam[C]. 见:. Beijing. August 19, 2019 - August 22, 2019.