灾害学2016，Vol.31Issue(2)：24-29,6.DOI:10.3969/j.issn.1000-811X.2016.02.006
公路泥石流灾害危险性分区研究
The Study on the Risk Regionalization of Highway Debris Flow Disasters
摘要
Abstract
In order to provide macro-level reference for prevention and management of highway debris flow disasters,risk regionalization of highway debris flow disasters was studied.The causal factors of disasters are ana-lyzed from topography condition,water condition,material sources and vegetation condition.In line with disaster effects,the assessment indicator system is selected and each indicator is rated and scored.Risk assessment model of highway debris flow disaster is established adopting the causal factors superposition principle.Each assessment indicator classification map and Risk Figure of Highway Debris Flow Disasters in China are calculated and plotted by GIS,and in view of risk degree,Risk Regionalization Figure of Highway Debris Flow Disasters in China is drew.The highway debris flow disasters in China is rated into four risk levels including extremely high risk area, high risk area,medium risk area and low risk area.The result of risk regionalization was in line with the distribu-tion feature of highway debris flow disasters in China.关键词
公路工程/泥石流灾害/致灾因素/危险性评价/GIS/危险性分区Key words
highway engineering/debris flow disasters/causal factor/risk assessment/GIS/risk regionaliza-tion分类
资源环境引用本文复制引用
赵欢,田伟平,李家春,齐洪亮,尹超..公路泥石流灾害危险性分区研究[J].灾害学,2016,31(2):24-29,6.基金项目
西部交通建设科技项目（200631800007）；中交股份科技研发项目（2011－ZJKJ －04）；中央高校基本科研业务费资助项目（自然科学类） （）
