A LITERATURE REVIEW ON DEBRIS FLOW CONSTITUTIVE MODEL AND ITS DYNAMIC SIMULATION

Due to the complexity of debris flow dynamic process,difficulties exist on the study of its constitutive model and dynamics simulation.This review begins with a survey of a number of literatures on constitutivemodelsand numerical simulation of debris flow process.Next,some important aspects are discussed.They included :(1) principle of existing constitutive models for debris flow and their applicability;(2) implement of numerical models and their application;(3) effect of environmental factors on debris flow dynamicprocess, such as stress redistribution and propagationas a result of complex geomorphological and geohydrological conditions.Finally,the potential practicability of GIS simulation for debris flow simulationis discussed.