METHOD AND APPARATUS FOR ANALYSING BEHAVIOR OF DEBRIS FLOW CONSIDERING ENTRAINMENT AND EROSION OF BED SEDIMENT

摘要

According to embodiments of the present invention, a debris flow mobility analysis method, which is performed by using a computer, comprises the steps of: analyzing a rheological model of debris flow flowing on a bedrock or the ground based on a soil model, which includes a bedrock and a soil layer, and soil property information and thereby, obtaining rheological parameters of the debris flow; analyzing ground erosion based on a strain-softening model determining a shearing strength in accordance with variations of the strain; updating the rheological parameters within the rheological model of the debris flow considering debris included in the eroded ground; and updating a terrain model by considering the ground after erosion.