Method and its application of the momentum model for debris flow risk zoning

作     者：WEIFangqiang J.L.Lopez 等 

作者机构：InstituteofMountainHzardsandEnvironmentChineseAcademyofSciencesChengdu610041China InstiuteofFluidMechanicsCentralUniversityofVenczuelaCaracasVenezuela 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2003年第48卷第6期

页      面：594-598页

核心收录：

学科分类：08[工学] 0837[工学-安全科学与工程] 

基　　金：supported by the Ministry of Science and Technology of China and the Chinese Academy of Sciences(Grant No.KZCX2-306) 

主　　题：泥石流 风险区划 动量模型 数值模拟 应用 GIS 

摘      要：In order to ascertain the distribution of flow depth and velocity of debris flow, the combination of nu-merical modeling and the GIS technology has been used to simulate the movement process of debris flow out of the out-let. The main model of momentum classification of risk zon-ing of debris flow is Z=Khv. Based on the distribution of the velocity and depth of debris flow, the distribution of mo-mentum can be ascertained. Thereby the classification of risk zoning of debris flow can be worked out. A case study of Chacaito Valley in Caracas, Venezuela, is presented to illus-trate the application of the method.