| Numerical Simulation of Initiation of Rainfall-Induced Debris Flow | |
Wang SY(王淑云) ; Lu XB(鲁晓兵); Ye TL(叶天立); sywang@imech.ac.cn
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| Source Publication | ENGINEERING GEOLOGY FOR SOCIETY AND TERRITORY VOL 2: LANDSLIDE PROCESSES |
| 2015 | |
| Conference Name | 12th International IAEG Congress |
| Conference Date | SEP 15-19 2014 |
| Conference Place | Torino ITALY |
| Abstract | Two-phase flow model modified Mohr-Coulomb model and the theory of unsaturated soil are adopt in FLAC and then the characteristics of seepage flow of Beichuan soil under rainfall conditions are numerically simulated. It is shown that the initiation of rainfall-induced debris flow is affected by rainfall density and duration. The maximum horizontal displacement occurs at the foot of the slope and increases with rainfall duration. The vertical displacement is non-uniform and the maximum value occurs at point A which is at the top of two-third. Whether or not a sudden change of displacement occurs at the characteristic point A is suggested to judge if debris flow starts. It is also shown there is a good agreement between numerical simulation results and rainfall model test data in laboratory. |
| Keyword | Debris Flow Rainfall Initiation Unsaturated Soil Simulation |
| Department | LMFS海洋土力学(LHO) |
| URL | 查看原文 |
| Indexed By | CPCI |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/55360 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | sywang@imech.ac.cn |
| Recommended Citation GB/T 7714 | Wang SY,Lu XB,Ye TL,et al. Numerical Simulation of Initiation of Rainfall-Induced Debris Flow[C]ENGINEERING GEOLOGY FOR SOCIETY AND TERRITORY VOL 2: LANDSLIDE PROCESSES,2015. |
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| File Name/Size | DocType | Version | Access | License | ||
| Cfp2014-017.pdf（399KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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