Discrete element modeling of debris avalanche impact on retaining walls

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

	Discrete element modeling of debris avalanche impact on retaining walls
	Li Xinpo; He Siming1 ; Luo Yu; Wu Yong
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2010-09-01
卷号	7 期号:3 页码:276-281
关键词	Debris flow debris avalanche rockfall retaining wall Discrete Element Method
ISSN号	1672-6316
通讯作者	何思明
英文摘要	In China, gravity retaining walls are widely used as protection structures against rockfalls, debris flows and debris avalanches along the roads in mountainous areas. In this paper, the Discrete Element Method (DEM) has been used to investigate the impact of granular avalanches and debris flows on retaining walls. The debris is modeled as two dimensional circular disks that interact through frictional sliding contacts. The basic equations that control the deformation and motion of the particles are introduced. A series of numerical experiments were conducted on an idealized debris slide impacting a retaining wall. The parametric study has been performed to examine the influences of slope geometry, travel distance of the sliding mass, wall position, and surface friction on the impact force exerted on the wall. Results show that: 1) the force achieves its maximum value when slope angle is equal to 60 degrees, as it varies from 30 degrees to 75 degrees; 2) an approximate linear relationship between the impact force and the storage area length is determined.
学科主题	岩土力学
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
分类号	P642.2
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	PFC MODEL ; SIMULATION ; STABILITY ; ROCK
收录类别	SCI
资助信息	the 973 Program of China (Grant No. 2008CB425803);the West Light Foundation of the CAS (Grant No. 09R2200200)
语种	英语
WOS记录号	WOS:000280555900008
公开日期	2012-12-28
内容类型	期刊论文
源URL	[http://192.168.143.20:8080/handle/131551/4720]
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
作者单位	1.CAS, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 2.CAS, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Li Xinpo,He Siming,Luo Yu,et al. Discrete element modeling of debris avalanche impact on retaining walls[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(3):276-281.
APA	Li Xinpo,He Siming,Luo Yu,&Wu Yong.(2010).Discrete element modeling of debris avalanche impact on retaining walls.JOURNAL OF MOUNTAIN SCIENCE,7(3),276-281.
MLA	Li Xinpo,et al."Discrete element modeling of debris avalanche impact on retaining walls".JOURNAL OF MOUNTAIN SCIENCE 7.3(2010):276-281.