A Comparison of Conventional and Shear-Rate Dependent Mohr-Coulomb Models for Simulating Landslides
文献类型：期刊论文
| 作者 | LIANG Dong-fang ; HE Xu-zhen |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2014-11 |
| 卷号 | 11期号:6页码:1478-1490 |
| 关键词 | Landslides Granular flows Mohr-Coulomb model Smoothed Particle Hydrodynamics |
| 通讯作者 | LIANG Dong-fang |
| 英文摘要 | Landslides may cause many fatalities and heavy economic losses, so it is vital to understand their mechanics so as to take appropriate measures to mitigate their risk. Phenomenally, the loose soil behaves like frictional material in most circumstances, so Mohr-Coulomb type equations are often used to describe their movement. However, these models generally do not consider the influence of the shear-rate on the Mohr-Coulomb friction angle, so the shear-rate dependence effect on the soil flow and landslide runout is not well understood. This paper reports on an application of the incompressible Smoothed Particle Hydrodynamics (SPH) method to the dynamics of dry granular assemblies. The traditional model with a constant friction angle is compared with the modified Mohr-Coulomb model with a variable friction angle related to the shear-rate. It is found that the shear-rate dependence effect is negligible for shallow granular flows along mild slopes. With steeper slopes of the ground and larger aspect ratios of the initial soil column, the rate-dependence effect becomes more important. |
| 收录类别 | SCI |
| 公开日期 | 2014-11-18 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7416]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.6 |
| 推荐引用方式 GB/T 7714 | LIANG Dong-fang,HE Xu-zhen. A Comparison of Conventional and Shear-Rate Dependent Mohr-Coulomb Models for Simulating Landslides[J]. Journal of Mountain Science,2014,11(6):1478-1490. |
| APA | LIANG Dong-fang,&HE Xu-zhen.(2014).A Comparison of Conventional and Shear-Rate Dependent Mohr-Coulomb Models for Simulating Landslides.Journal of Mountain Science,11(6),1478-1490. |
| MLA | LIANG Dong-fang,et al."A Comparison of Conventional and Shear-Rate Dependent Mohr-Coulomb Models for Simulating Landslides".Journal of Mountain Science 11.6(2014):1478-1490. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。