Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model

doi:10.1007/s10064-018-1329-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 > 山地灾害与地表过程重点实验室

	Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model
	Cheng Qiao1,2,3,4 ; Guoqiang Ou1,2 ; Huali Pan1,2 ; Qiao, Cheng; Ou, Guoqiang; Pan, Huali; Pan, Huali
刊名	Bulletin of Engineering Geology and the Environment
	2018
页码	DOI:10.1007/s10064-018-1329-z
关键词	Shenzhen landslide Long runout Two-phasemass flowmodel Pore-pressure Buoyancy force raveflow
ISSN号	1435-9529
DOI	10.1007/s10064-018-1329-z
通讯作者	Huali Pan
产权排序	1
英文摘要	High fluid content or pore-fluid pressure is generally the main reason for the triggering and high mobility of landslides. A catastrophic landslide occurred at Hongao construction waste dumpsite in the Guangming New District of Shenzhen, China, on Dec 20, 2015. Due to the high water content of soil in the source area, this landslide propagated over an extremely long travel distance, with maximum length and width of the affected area 1100 m and 630 m, respectively. High water content pesents a great challenge to numerical methods. In order to simultaneously include the evolution of the solid and fluid components in the mixture, a general two-phase mass flow model of Pudasaini (J Geophys Res 117: F03010, 2012) has been employed in our simulations. The complex interactions between the solid and fluid phases, including buoyancy, the virtual mass force, generalized drag and enhanced non-Newtonian viscous stress, are considered in this two-phase flow model. These are essential aspects in the motion of landslides consisting of viscous fluid and solid particles. Based on the actual geology and engineering conditions, runout characteristics of the Shenzhen landslide were analyzed numerically. The principal reasons for the long runout character and the inundation are discussed based on the physics-based model and high-resolution numerical results.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/23506]
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	Pan, Huali; Pan, Huali
作者单位	1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu; 610041, China; 2.Key Laboratory of Mountain Surface Process and Hazards, Chinese Academy of Sciences, Chengdu; 610041, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China; 4.Anhui University of Science & Technology, Huainan; 232001, China
推荐引用方式 GB/T 7714	Cheng Qiao,Guoqiang Ou,Huali Pan,et al. Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model[J]. Bulletin of Engineering Geology and the Environment,2018:DOI:10.1007/s10064-018-1329-z.
APA	Cheng Qiao.,Guoqiang Ou.,Huali Pan.,Qiao, Cheng.,Ou, Guoqiang.,...&Pan, Huali.(2018).Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model.Bulletin of Engineering Geology and the Environment,DOI:10.1007/s10064-018-1329-z.
MLA	Cheng Qiao,et al."Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model".Bulletin of Engineering Geology and the Environment (2018):DOI:10.1007/s10064-018-1329-z.