Early warning model for slope debris flow initiation

doi:10.1007/s11629-017-4779-z

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-2018 > Vol15 No.6

	Early warning model for slope debris flow initiation
	Li, ML; Jiang, YJ; Yang, T; Huang, QB; Qiao, JP; Yang, ZJ
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2018
卷号	15 期号:6 页码:1342-1353
关键词	Slope debris flow Artificial rainfall model Early warning model Model experiment
ISSN号	1672-6316
DOI	10.1007/s11629-017-4779-z
文献子类	Article
英文摘要	Early warning model of debris flow is important for providing local residents with reliable and accurate warning information to escape from debris flow hazards. This research studied the debris flow initiation in the Yindongzi gully in Dujiangyan City, Sichuan province, China with scaled-down model experiments. We set rainfall intensity and slope angle as dominating parameters and carried out 20 scaled-down model tests under artificial rainfall conditions. The experiments set four slope angles (32A degrees, 34A degrees, 37A degrees, 42A degrees) and five rainfall intensities (60 mm/h, 90 mm/h, 120 mm/h, 150 mm/h, and 180 mm/h) treatments. The characteristic variables in the experiments, such as, rainfall duration, pore water pressure, moisture content, surface inclination, and volume were monitored. The experimental results revealed the failure mode of loose slope material and the process of slope debris flow initiation, as well as the relationship between the surface deformation and the physical parameters of experimental model. A traditional rainfall intensity-duration early warning model (I-D model) was firstly established by using a mathematical regression analysis, and it was then improved into ISD model and ISM model (Here, I is rainfall Intensity, S is Slope angle, D is rainfall Duration, and M is Moisture content). The warning model can provide reliable early warning of slope debris flow initiation.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000435362700014
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/35513]
专题	Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.6
推荐引用方式 GB/T 7714	Li, ML,Jiang, YJ,Yang, T,et al. Early warning model for slope debris flow initiation[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(6):1342-1353.
APA	Li, ML,Jiang, YJ,Yang, T,Huang, QB,Qiao, JP,&Yang, ZJ.(2018).Early warning model for slope debris flow initiation.JOURNAL OF MOUNTAIN SCIENCE,15(6),1342-1353.
MLA	Li, ML,et al."Early warning model for slope debris flow initiation".JOURNAL OF MOUNTAIN SCIENCE 15.6(2018):1342-1353.