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 |
DOI | 10.1007/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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