DEM Coupled SMAC Simulation on the Moving Process of Flow Like Landslide
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This study aims to simulate the flow-like landslides which caused by the Wenchuan earthquake 2008. For approaching this phenomenon, it is difficult to examine for simulation method based on continuum model that occurred in landslide body due to collision of granular materials and its effect. In this paper, we modeled this phenomenon as multi-phase flow, and simulated by discrete element method (DEM) and simplified maker and cell method (SMAC) with introducing simplified interaction. As for the verification of simulation especially for interaction, terminal settling velocity test is executed and shows quantitatively agreement. Moreover, through this simulation, moving process of the Tangjiashan landslides picked up as typical flow-like landslides. This landslide located beside the valley, and due to the landslides it held the mountain stream. Based on this simulation, depositional process is obtained.
KeywordsDiscrete element method Simplified marker and cell method Interaction Flow-like landslide Moving process
This work was supported by the National Basic Research Program of China (973 Program, Grant No. 2012CB719803), the National Natural Science Foundation of China (Grant Nos. 41211140042 and 41072202), the Program for New Century Excellent Talents in University (Grant No. NCET-11-0382) and the Kwang-Hua Fund for College of Civil Engineering, Tongji University.
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