IMECH-IR  > 流固耦合系统力学重点实验室
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
Source PublicationENGINEERING GEOLOGY FOR SOCIETY AND TERRITORY VOL 2: LANDSLIDE PROCESSES
2015
Conference Name12th International IAEG Congress
Conference DateSEP 15-19 2014
Conference PlaceTorino ITALY
AbstractTwo-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.
KeywordDebris Flow Rainfall Initiation Unsaturated Soil Simulation
DepartmentLMFS海洋土力学(LHO)
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/55360
Collection流固耦合系统力学重点实验室
Corresponding Authorsywang@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]. CHAM:SPRINGER INT PUBLISHING AG,2015.
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