基于GIS与层次分析法的公路泥石流危险性评价  

Hazard Evaluation of Debris Flow Along Highway Based on GIS and AHP

作　　者：马海荣[1] 程新文[1] 陈联君[1] 张海涛[1] 常亚洲[1] 

机构地区：[1]中国地质大学(武汉)信息工程学院,湖北武汉430074

出　　处：《公路工程》2016年第1期33-37,63,共6页Highway Engineering

基　　金：高分综合交通遥感应用示范系统先期攻关(07-Y30A05-900)

摘　　要：泥石流是我国山区公路的主要地质灾害之一,对山区建设和交通设施危害较大。以赛果高速为例,结合当地的环境地质条件分析影响泥石流产生的重要因素,选取岩性、坡度、沟壑密度、风化程度,植被覆盖率、植被覆盖类型、年均日最大降雨量、历史灾害频次8个因子参与泥石流危险性评价;然后利用层次分析法并结合GIS软件的叠加分析功能,得到评价路段泥石流危险性分区结果;最后利用该地区泥石流历史灾害信息验证了本文评价方法的可行性与评价结果的准确性。The debris flow,which is the main geological hazards of our country mountain highway,has great harm to the mountain-building and traffic facilities. The Saiguo highway was taken as an example to analyze the important factors which affect the occurrence of debris flow combined with the local environmental geological conditions. Factors like lithology,slope,gully density,weathering degree,vegetation coverage,vegetation type,average daily rainfall,historical disaster frequency were chosen in debris flow risk assessment. Then the analytic hierarchy process（ AHP）,combined with the overlay analysis function of GIS software,was used to obtained debris flow risk zoning result. Finally the history information of debris flows in this region was utilized to verify the accuracy and feasibility of the method we proposed in this paper.

关 键 词：泥石流 危险性评价 GIS 层次分析法 

分 类 号：U416.165[交通运输工程—道路与铁道工程]