Impulsive forces distribution along the sediment storage dam upstream face for different mud-rock flow unit weight

doi:10.1007/s12665-018-7351-4

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

	Impulsive forces distribution along the sediment storage dam upstream face for different mud-rock flow unit weight
	Yu, Xianbin1,2 ; Chen, Xiaoqing2 ; Chen, Jiangang2 ; Wang, Daozheng2
刊名	ENVIRONMENTAL EARTH SCIENCES
	2018-03-01
卷号	77 期号:5 页码:15
关键词	Sediment storage dam Impulsive forces Mud-rock flow unit weight Experimental study
ISSN号	1866-6280
DOI	10.1007/s12665-018-7351-4
英文摘要	Because of the huge damage caused by mud-rock flow for the downstream life and property, engineering prevention must be given. It is one of fast and effective measures to build sediment storage dams in the formation zone to the circulation area. Due to the undercutting, scour and impact effect of mud-rock flows to sediment storage dam foundation or the unreasonable reconnaissance design, sediment storage dams possibly cause damage in the design period. However, the impulsive forces of mud-rock flow are the main reason to lead the engineering control structures (sediment storage dams, drainage grooves and block structure of pipe group) to damage. It is very important to study the law of mud-rock flow impulsive forces, and it is of great significance to prevent the damage of sediment storage dam and provide data support and technical support for the construction of sediment storage dam. First, the distribution rules of the maximum and mean value of the impulsive forces of mud-rock flow for the sediment storage dam upstream surface were studied for four mud-rock flow slurry unit weight as the experiment variable. The mud-rock flow impulsive forces value was collected by a numerical collection device that connected eight pressure sensors positioned in various locations, which received the mud-rock flow impact signal. Then, the distribution roles of the maximum and mean impulsive forces value imparted by water or water-rock flows were compared. The results indicate that (1) due to the randomness of particle impacts, the distribution law of the maximum impulsive forces is not obvious, and the maximum mud-rock flow impulsive forces of 99.277 kPa occur in A(1)B(3)C(7) (for a range of particle sizes of 2-4.5 cm); (2) the mud-rock flow impulsive forces mean value first increases and then decreases as the unit weight of the mud-rock flow increases; and (3) the mud-rock flow impulsive forces mean value gradually decreases along the height direction of the sediment storage dams' upstream surface and gradually decreases as the direction changes to the overflow section toward the dam abutments.
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000427354000021
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/22533]
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	Yu, Xianbin
作者单位	1.Linyi Univ, Sch Civil Engn & Architecture, Linyi 276005, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Yu, Xianbin,Chen, Xiaoqing,Chen, Jiangang,et al. Impulsive forces distribution along the sediment storage dam upstream face for different mud-rock flow unit weight[J]. ENVIRONMENTAL EARTH SCIENCES,2018,77(5):15.
APA	Yu, Xianbin,Chen, Xiaoqing,Chen, Jiangang,&Wang, Daozheng.(2018).Impulsive forces distribution along the sediment storage dam upstream face for different mud-rock flow unit weight.ENVIRONMENTAL EARTH SCIENCES,77(5),15.
MLA	Yu, Xianbin,et al."Impulsive forces distribution along the sediment storage dam upstream face for different mud-rock flow unit weight".ENVIRONMENTAL EARTH SCIENCES 77.5(2018):15.