Abstract
This paper proposes an application of the distinct element method on daming up performance of woody debris capturing structure subjected to woody debris. In order to simulate the performance of woody debris, a column shape element model is developed. The debris flow experiments, with various combinations of the length of woody debris and the interval of vertical colu mns of the structure, are carried out in advance. Those results are simulated by the proposed method with considering a flow velocity model in this study. The flow velocity mode l considered the turbulence of water flow occurred in this experiment. The simulation results by using flow velocity model that ignore the turbulence effect cannot express the experimental results adequately. The simulation results by using flow velocity model that include the turbulence mode l show good agreement from the view point of debris capturing mechanism and debris flow capturing probability.
