中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Dynamic simulation of rockslide-debris flow based on an elastic-plastic framework using the SPH method

文献类型:期刊论文

作者Liang Heng2,3; He Siming1,2,3; Liu Wei2,3
刊名BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
出版日期2020
卷号79期号:1页码:451-465
ISSN号1435-9529
关键词Rockslide-debris flow Smoothed particle hydrodynamics Dilatancy Mechanics behavior transition
DOI10.1007/s10064-019-01537-8
通讯作者Liang, Heng(zkysdlh@163.com)
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
WOS关键词SMOOTHED PARTICLE HYDRODYNAMICS ; DEPTH-INTEGRATED MODEL ; RUN-OUT ; LANDSLIDE ; LIQUEFACTION ; INITIATION
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
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.University of Chinese Academy of Sciences, Beijing, China;
2.Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu, China
3.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 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.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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