Dynamic simulation of rockslide-debris flow based on an elastic-plastic framework using the SPH method

doi:10.1007/s10064-019-01537-8

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

	Dynamic simulation of rockslide-debris flow based on an elastic-plastic framework using the SPH method
	Liang Heng 1,2; He Siming 1,2,3; Liu Wei 1,2
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2020
卷号	79 期号:1 页码:451-465
关键词	Rockslide-debris flow Smoothed particle hydrodynamics Dilatancy Mechanics behavior transition
ISSN号	1435-9529
DOI	10.1007/s10064-019-01537-8
产权排序	1
文献子类	Article
英文摘要	To simulate the motion process of a rockslide-debris flow that behaves like a solid in a small deformation regime and a fluid in an extremely large deformation regime, such as that of the Guanling rockslide in China on June 28, 2010, we proposed a dilatant rheology model that bridges this mechanical behavior of such flows, using the Guanling rockslide as an example. In our model, the adjustment of the material isotropic pressure when plastic deformation occurred was based on the plastic potential theory of solid mechanics, and the shear stress tensor was calculated based on the Drucker-Prager yield criterion and the strain-rate tensor. Furthermore, the Jaumann rate was adopted to maintain the stress frame consistent with the strain and rotation information. The boundary condition in our simulation was based on the dynamic boundary condition, and the boundary particles were described by the Bingham model rather than the proposed model, which differs from the usual treatment. Furthermore, the inverse distance weighting method was applied to evaluate the rockslide depth at different stages. Finally, a three-dimensional (3D) representation of the velocity, depth, kinetic energy, and density of the Guanling rockslide-debris flow was obtained using the dilatant rheology model, which revealed that surface mass fluidization lagged behind sliding plane mass fluidization in the studied flow. The simulation results indicate that, with respect to simulating the Guanling rockslide-debris flow, the proposed model employing 3D smoothed-particle hydrodynamics was superior to and more detailed than the incompressible fluid model using the depth-integrated method.
电子版国际标准刊号	1435-9537
资助项目	National Natural Science Foundation of China[41790433] ; National Natural Science Foundation of China[41772312] ; NSFC-ICIMOD[41661144041] ; Key Research and Development Projects of Sichuan Province[2017SZ0041]
WOS关键词	SMOOTHED PARTICLE HYDRODYNAMICS ; DEPTH-INTEGRATED MODEL ; RUN-OUT ; LANDSLIDE ; LIQUEFACTION ; INITIATION
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000511500900030
资助机构	National Natural Science Foundation of China ; NSFC-ICIMOD ; Key Research and Development Projects of Sichuan Province
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/33883]
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	Liang Heng
作者单位	1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; 2.Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu, China 3.University of Chinese Academy of Sciences, Beijing, China;
推荐引用方式 GB/T 7714	Liang Heng,He Siming,Liu Wei. Dynamic simulation of rockslide-debris flow based on an elastic-plastic framework using the SPH method[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020,79(1):451-465.
APA	Liang Heng,He Siming,&Liu Wei.(2020).Dynamic simulation of rockslide-debris flow based on an elastic-plastic framework using the SPH method.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,79(1),451-465.
MLA	Liang Heng,et al."Dynamic simulation of rockslide-debris flow based on an elastic-plastic framework using the SPH method".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 79.1(2020):451-465.