Model and Method of Debris Flow Risk Zoning Based on Momentum Analysis

被引：5

作者：

WEI Fangqiang ZHANG Yu HU Kaiheng GAO Kechang Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu Sichuan China Dongchuan Station of Debris Flow Observation and Research Chinese Academy of Sciences Dongchuan Yunan China ^{[1
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机构：

来源：

WuhanUniversityJournalofNaturalSciences | 2006年 / 04期

关键词：

debris flow; risk zoning; momentum; ultimate bearing capacity;

D O I：

暂无

中图分类号：

P642.23 [泥石流];

学科分类号：

0837 ;

摘要：

A model of debris flow risk zoning is carried out with momentum analysis of debris flow. This model zones the debris flow inundation fan with density and velocity calculated by numerical simulation. The risk classification standard is determined according to the ultimate bearing capacities of different structures under impacting. And the ultimate bearing capacities are tested by impact failure experiment of destruction. Two structures typical in Chinese mountain towns, reinforced concrete frame construction and brickwork with concrete, are chosen in the experiment. The model makes debris flow risk zoning quantitative and the results comparable widely. The results differ much from that of other methods especially in the identification of medium and low risk zones.

引用

页码：835 / 839

页数：5