Report title: Numerical Simulation of Watershed Rainfall Landslide and Its Relationship with Geomorphologic Evolution
Reporter: Doctor Fan Linfeng
Work unit: Southern University of Science and Technology
Time: 16:00-17:00 pm, Friday, January 10, 2020
Location: Room 211, State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (the opposite side of Gongtong Yuan)
Rainfall landslide is a common natural disaster in mountainous areas, which the inducing process is the result of soil and water interaction in the rainfall. This paper mainly introduces the LHT-Perla, the watershed scale rainfall landslide occurrence and migration model coupled with the hydrology and soil mechanics of the slope, and the real-time evaluation system for the risk of rainfall landslide based on the model. By using the simulation evaluation system, it explains the influence mechanism of slope force history, spatial heterogeneity of physical and mechanical properties of soil and dynamic change of rainfall on the occurrence, development and dangerous dynamic evolution of landslide. Finally, the influence of landslide on river sediment fluxes in mountainous area is preliminarily quantified under the framework of geomorphic process evolution. The research results have deepened the understanding of the hydro-mechanical inducing mechanism of rainfall landslide and its relationship with the evolution of mountain topography.
The brief introduction of the reporter:
Fan Linfeng is the Assistant Professor(Associate Researcher) of School of Environmental Science & Engineering, Southern University of Science and Technology, doctor of Federal Institute of Technology, Zurich, Switzerland (ETH Zurich), Master of Institute of Geology and Geophysics, Chinese Academy of Sciences. The main research directions include: (1) the simulation and prediction of watershed rainfall landslide; (2) surface - ground water coupling simulation; (3) Water-food-energy interrelationship. The results are published in many international leading journals such as Geophysical Research Letters, Journal of Geophysical Research, Water Resources Research, Geomorphology.
All teachers and students are welcome to attend!
College of Environment & Civil Engineering
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection
January 3rd, 2020